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Papers of James Dewar


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Reference DEWAR
Covering dates 1845-1975
Held by Royal Institution of Great Britain
Extent 37 series
Creators Dewar, Sir, James, 1842-1923, Knight, scientist, chemist and physicist

Contents:
Correspondence, notebooks and general papers



Correspondence and General A-I  DEWAR/Box D I  [n.d.]

File a: Awards  DEWAR/DIa  1899-1922

Smithsonian Institution (S.P.Langley) to James Dewar  DEWAR/DIa/I  3 April 1899

2 pp

Contents:
Washington typescript
Award of the first gold medal of the Hodgkins Foundation to Dewar.
With letter from Langley, 6 April 1899, 2½pp MS, apologising for delay in sending letter accompanying medal. DEWAR/DIa/2

[Henry George Percy, 7th Duke of] Northumberland to Henry Young  DEWAR/DIa/3  20 April 1899

2 pp

Contents:
Albury Park, Guildford MS
Thanks Young for transcript of letter from Smithsonian Institution to Dewar. Comments on Dewar's work and on his pleasure that Dewar's work should be recognised in U.S.A.

American Philosophical Society (F.Prime) to James Dewar  DEWAR/DIa/4  15 Dec 1899

½ page

Contents:
Philadelphia Printed & MS
Informs Dewar of his election as a Member of the Society.

Manchester Literary & Philosophical Society to James Dewar  DEWAR/DIa/5  24 April 1900

1 page

Contents:
Printed & MS
Diploma of Honorary Membership of the Society.

Institute of Chemistry of Great Britain & Ireland to James Dewar  DEWAR/DIa/6  1901

1 page

Contents:
Printed
Annual Certificate of Membership.

Royal Society of Edinburgh (G. Chrystal) to James Dewar  DEWAR/DIa/7  26 Nov 1904

½ page

Contents:
Typescript
Award of the Gunning Victoria Jubilee Prize for 1900-1904 for Dewar's research on liquefaction of gases and on the chemical and physical properties of substances at low temperatures.

Institut de France, Acadeémic des Sciences, to James Dewar  DEWAR/DIa/9  28 Nov 1904

1½ pages
Language:  French

Contents:
Paris MS,
Award of Lavoisier Medal for work on liquefaction of gases.
With covering note from the Under Secretary of State for Foreign Affairs, 17th Dec. 1904; ½ page, MS; DEWAR/DIa/8

Societa Italiana delle Scienze detta dei XL  DEWAR/DIa/10  July 1906

11/3 pp
Language:  Italian

Contents:
Rome printed;
Releazione sul conferimento della medaglia Matteucci (anno 1906), presentata dalla Commissione composta dei Soci: Blaserna, Righi, Roiti.
(Report on the award of the Matteucci Medal (year 1906), presented by the Commission composed of the Members Blaserna, Righi and Roiti.)
With copy.
With translation: 2½ typescript; DEWAR/DIa/11 and printed copy of the translation; DEWAR/DIa/12

Acadeémie Royale des Sciences, des Lettres et des Beaux-Arts de Belgique to James Dewar  DEWAR/DIa/13  6 June 1908

1 p
Language:  French

Contents:
Brussels Printed & MS;
Election of Dewar as an Associate in the Science Class.

Reale Accademia dei Lincei to James Dewar  DEWAR/DIa/14  13 Aug 1909

1 p
Language:  Italian

Contents:
Rome MS;
Election of Dewar as Foreign Member of the Academy.
With certificate of membership: Aug. 1909, 2pp, printed; Latin: DEWAR/DIa/15

The Royal Society (J.Larmor) to James Dewar  DEWAR/DIa/16  4 Nov 1909

1 p

Contents:
Burlington House typescript & MS
Award of Davy Medal for low temperature research.

Albert-Ludwige-Universitate to James Dewar  DEWAR/DIa/17  28 Oct 1911

1 p
Language:  German

Contents:
Freiburg printed;
Diploma for Honorary Degree of Doctor of Philosophy.

Society of Chemical Industry  DEWAR/DIa/18  20 July 1918

3½ pp

Contents:
MS
Report of the award of the Society's Medal to James Dewar for research in pure and applied science, at Society's Annual Meeting at Bristol. Report copied from The Chemical Trade Journal & Chemical Engineer.

Institut de France, Academié des Sciences to James Dewar  DEWAR/DIa/19  8 March 1920

1 p
Language:  French

Contents:
Paris typescript;
Informs Dewar of election as a Correspondent in the general physics section.

Swedish Royal Academy of Science, Nobel Committee for Physics to James Dewar  DEWAR/DIa/20  1 Sept 1922

2 pp
Language:  English and Swedish

Contents:
Stockholm printed & MS;
Invitation to Dewar to Lominate a candidate for the 1923 Nobel Prize for Physics.

File DIb: correspondence - A  DEWAR/DIb  1852-1968

F.A.Abel to [James] Dewar  DEWAR/DIb/1  9 June 1891

3 pp

Contents:
Imperial Institute, London MS
Has had little chance to use balance which was presented to him forty years ago by his pupils. Comments on the balance which is an example of Oertling's work and offers it to the Royal Institution.

Dr - Hofmann  DEWAR/DIb/2  28 April 1865

24 pp

Contents:
London printed
Farewell Banquet to Dr Hofmann, reprinted from Chemical News With MS dedication by Hofmann to F.A.Abel.

F.A. Abel  DEWAR/DIb/3  ca. 1852

16 pp

Contents:
Printed
Testimonials of F.A.Abel, F.C.S.

Ralph Cory to Mr Stollard  DEWAR/DIb/4  17 July 1968

1½ pp

Contents:
Mont Felard, Jersey MS
Thinks Federick Abel did research with Dewar in the early 1900s. Believes the work was on cordite.

W.de W.Abney to [James] Dewar  DEWAR/DIb/5  18 Jan [?]

3 pp

Contents:
S. Kensington MS
Comments on effects of low temperatures on exposure times of photographic plates, including effects on yellow and green glass. Prolongation of exposure sixteen times greater in liquid oxygen. Liquid air is almost transparent.

W.de W.Abney to [James] Dewar  DEWAR/DIb/6  3 March [?]

4 pp

Contents:
Wetherby Place MS
Dewar must be careful how he puts his results. Density is sometimes misleading as a guide to sensitiveness. Has some results with temperatures from 100F to -18C. Temperature acts differently on different plates. Comments on his results. Could publish his own experiments as a sequel to his other papers and Dewar can start with the low temperature work as a separate communication; comments on this. Would like to have one of the jellies Dewar is using to do the 100F -18C experiment.

W.de W.Abney to [James] Dewar  DEWAR/DIb/7  28 March [?]

3½ pp

Contents:
Wetherby Place MS
Is working on the effects of temperature on photographic action. Comments on work using different plates. Wants to know if the plates can be exposed at the lowest temperatures. Does not think a single exposure is reliable and needs to find method allowing, say, 4 exposures; discusses this.

W.de W.Abney to [James] Dewar  DEWAR/DIb/8  1 May [?]

3 pp

Contents:
Wetherby Place
Thinks Dewar should take up the temperature work. He should be pleased to do what he can to help. Has just finished experimental work on exposure at ordinary temperatures which has upset previous ideas. Will be very interested to see Dewar's results.

W.de W.Abney to [James] Dewar  DEWAR/DIb/9  30 May [?]

1½ pp

Contents:
Wetherby Place MS
Will do what he can with what Dewar has sent. Has a paper on the stocks" on the effect of light from normal temperature down to that of liquid CO2. Many things must be taken into account when dealing with exposures.

W.de W.Abney to [James] Dewar  DEWAR/DIb/10  25 Jan [?]

4 pp

Contents:
Wetherby Place MS
Has measured and calculated many things Dewar sent but is only satisfied with one. Comments on the exposures taken. Lamp is too close to the film or too bright. Discusses modification of the procedure. Does not know if any of the action is due to phosphorescence; comments on this. Is anxious to get the true value of the action. Would like a few more exposures to develop with his own scale.

Thomas Anderson to [James] Dewar  DEWAR/DIb/11  11 Dec 1873

4 pp

Contents:
Queen's College, Belfast MS
Thanks Dewar for proofs of paper. Does not think he will need special apparatus; comments on this. Pleased Dewar has good grounds "for imputing inaccuracy to Thomsen"; comments on Thomsen.

Svante Arrhenius to [James Dewar]  DEWAR/DIb/12  4 June 1903

2¼ pages
Language:  German

Contents:
Berlin MS;
Enquires after Dewar's health. Compliments Dewar on his work. Could come to the R.I. in May 1904 and could lecture in English, although he would prefer to speak in german.

Svante Arrhenius to Sir James & Lady Dewar  DEWAR/DIb/13  18 Dec 1916

1 p

Contents:
Stockholm MS; postcard
Greetings for Christmas and the New Year. Comments on his children.

Svante Arrhenius to Sir James & Lady Dewar  DEWAR/DIb/14  23 Dec 1919

1 p

Contents:
Stockholm MS; postcard
Greetings for Christmas and the New Year.

File c: Correspondence - B  DEWAR/DIc  1867 -1903

James Dewar to [Arthur James] Balfour  DEWAR/DIc/1  7 Feb 1903

2 pp

Contents:
Royal Institution MS
Invites Balfour to become President of the [1904] Cambridge meeting of the British Association for the Advancement of Science.

Arthur James Balfour to [James] Dewar  DEWAR/DIc/2  9 Feb 1903

3¼ pp

Contents:
10 Downing St MS
Accepts invitation to become President of the British Association for the 1904 Cambridge meeting.

B.Baker to [James] Dewar  DEWAR/DIc/3  21 Jan 1896

1 p

Contents:
Westminster MS
Thanks Dewar for abstract of paper. Just what he needed "to show up the lies that have been circulated".

George F. Barker to [James] Dewar  DEWAR/DIc/4  4 Oct 1901

4 pp

Contents:
Philadelphia MS
Sorry to learn of Dewar's illness; comments on this. Thanks Dewar for letting him have the krypton and xenon tubes; comments on packaging of these for Customs. At National Academy meeting in November, would like to show complete series of tubes - argon, helium, neon, krypton and xenon. Comments on liquefaction of helium. Refers to apparatus for liquefying hydrogen devised by Ramsay & Travers. Comments on visit of Mrs Draper to London. Comments on his own holiday and family. Invites Dewar and his wife to visit him.

George F.Barker to [James] Dewar  DEWAR/DIc/5  4 Nov 1901

1 p

Contents:
Philadelphia MS
Thanks Dewar for second neon tube; comments on this. Comments on his proposed visit to Egypt.

George F.Barker to [James] Dewar  DEWAR/DIc/6  18 Nov 1901

2 pp

Contents:
Philadelphia MS
Comments on meeting of the National Academy of Sciences. Read paper on monatonic gases and showed the gases Dewar sent him. Gases lighted up well with a 4" Apps coil; "everybody was delighted, as this was the first time neon, krypton and xenon had been shown in America". Showed Mrs Draper and others his spectra, including those of the gases Dewar first sent, of the mixture of neon and helium from the King's well and of the argon which Lord Rayleigh gave him in 1896. Gave talk at the Philosophical Society on the new gases. Comments on social events at the meeting. Wishes Dewar could present a paper at the spring meeting of the American Philosophical Society; comments on this.

W.Emery Barnes to [James] Dewar  DEWAR/DIc/7  6 March 1902

1 p

Contents:
Cambridge MS
Is enclosing note on Tyndall's address, which is "delightful reading".

M.Berthelot to James Dewar  DEWAR/DIc/8  24 April 1874

2 pp
Language:  French

Contents:
Paris MS;
Thanks Dewar for letter asking him for testimonial for Chair of Chemistry, University of Glasgow. Comments on Dewar's researches.

D.Brewster to [J.A.F.] Plateau  DEWAR/DIc/9  2 April 1867

1 p

Contents:
Edinburgh MS
Letter of introduction for James Dewar, who plans to visit Ghent.
Similar letter to [L.A.J.] Quetelet, Brussels, 3 April 1867; 1¼pp, MS; DEWAR/DIc/10

J.W.Bruhl to [James] Dewar  DEWAR/DIc/11  9 Dec 1895

3¼ pp
Language:  German

Contents:
Heidelberg MS;
Refers to Liveing's work with Dewar. Discusses work on refraction and dispersion of nitrogen, nitrous oxide, nitrogen dioxide and work on the dielectric constants of liquid oxygen, nitrogen and nitrogen oxides

J.W.Bruhl to [James] Dewar  DEWAR/DIc/12  25 Dec 1895

2¼ pp
Language:  German

Contents:
Heidelberg MS; German
Thanks Dewar for method of obtaining liquid air, which he will use in his studies of hydrogen peroxide and ozone

[James Dewar] to G.H. Bryan  DEWAR/DIc/13  24 July 1895

2 pp

Contents:
Royal Institution MS
Criticises abstract in Proc.Phys.Soc. on the critical temperature of hydrogen and refers Bryan to Prof.Wroblewske's paper on the subject.

G.H.Bryan to [James] Dewar  DEWAR/DIc/14  25 July 1895

4 pp

Contents:
Cambridge MS
Thanks Dewar for letter and information, which he will send to Swinburne who edits the abstracts. Did not know of Wroblewske's paper but thought it unlikely that work had not been done on the critical temperature of hydrogen. Had planned to give a statement of the content of Natanson's paper, but opening sentence of abstract reads as if he thought the critical temperature of hydrogen had not been permanently realised; comments on this.

[James Dewar]  DEWAR/DIc/15  n.d

1 p

Contents:
MS
Notes for occasion on which statue of Robert Burns was accepted by City of London to be displayed in the Embankment Gardens.

File d: Correspondence - C  DEWAR/DId  1874-1922

A.B.Griffiths to James Dewar  DEWAR/DId/1  6 Aug 1906

1 p

Contents:
London MS
In enclosing photographs of Cavendish House, Clapham Common, where Henry Cavendish performed his experiments.
With two photographs: DEWAR/DId/2& 3

Chemical Jeux d'Esprit  DEWAR/DId/4-18  [n.d.]

Contents:
Collection of miscellaneous humorous printed items.
The feast of the blues by the author of "A Chemical Review" 7pp; DEWAR/DId/4
C.B. A new Song to an old Tune ('Bonnie Dundee'); & B Club publication; 2pp; DEWAR/DId/5.
The Twins by Henry S.Leigh; 1p, DEWAR/DId/6
Van Voorst's Bowl of Punch. B Club; 1p, DEWAR/DId/7.
Graphic Formulae. Chemical Society, 16 April 1868; 1p, DEWAR/DId/8; with copy, DEWAR/DId/9.
The Chemical Alphabet. B Club. 4pp, DEWAR/DId/10.
Primeval Chemistry. A paper to be discoursed (with accompaniments to the B Club. 5 Nov. 1867. 1¾pp; DEWAR/DId/11
The B Club in Rhyme. 2pp, DEWAR/DId/12
Bonnie Dundee. B Club, 5 Nov. 1867. 1¾pp; DEWAR/DId/13.
On the utilization of sewage by phosphate of alumina. A paper which ought to be sung to the B Club by D.Forbes & Astley Price. 1p, DEWAR/DId/14.
B Club Rules. 2pp; DEWAR/DId/15.
The B's, 2nd Series, 3 Dec. 1867. 2pp; DEWAR/DId/16.
Billy Barlow at the Royal Institution, by J.C.B., 20 April 1869 and Laudation for intonation, by J.C.B., 20 April 1869; 3pp, DEWAR/DId/17.
Remonstrance to a respected Daddie anent his loss of temper.
Suggested by Prof.Clerk Maxwell's review of Guthrie's 'Physics'. 1p, DEWAR/DId/18.

J.J.Coleman  DEWAR/DId/19  29 May 1885

14 pp

Contents:
Printed with MS notes [by Dewar]
Royal Institution Discourse: The mechanical production of cold and the effects of cold upon microphytes.
With notes [by Dewar] on other work on the subject and extracts from patent applications by C.W.Siemens for "Improvements in refrigerating and producing ice, and in apparatus or machinery for that purpose" and by Ernest Solvay for "new or improved apparatus for and process for producing, applying, and keeping up extreme temperatures".

W.H.Corfield to [James] Dewar  DEWAR/DId/20  28 Jan [?]1901

3 pp

Contents:
Savile Row MS
Has some articles he would like to send to the Royal Institution. Comments on these: a balance used by Scheele, piece of "Ambozoniferous Fluor Spar" given to him by Schonbein, copy of Daubeny's "Atomic Theory".

M.A.Cornu to [James] Dewar  DEWAR/DId/21  16 July 1895

6 pp
Language:  French

Contents:
Paris MS;
Thanks Dewar for humorous American articles. Comments on Dewar's paper on absorption spectra of liquid oxygen. Discusses nature of oxygen and ozone. Discusses work on the absorption spectra of ozone. Comments on his family and asks about Mrs Dewar's health.

John Cottrell to [James] Dewar  DEWAR/DId/22  n.d

3½ pp

Contents:
Royal Institution MS
Gives details of results of experiments submitting ice to pressure.

C.A. Crommelin to [James] Dewar  DEWAR/DId/23  23 Oct 1922

3¾ p

Contents:
Leiden MS
Thanks Dewar for his kindness and suggestions concerning Crommelin's work. Comments on soap-bubble experiments. Enjoyed his visits to the Royal Insitution.
With typescript copy: DEWAR/DId/24

William Crookes to [James] Dewar  DEWAR/DId/25  7 Aug 1874

1 p

Contents:
London MS
Thanks Dewar for hint about perfect vacuum. Will be pleased to publish Dewar's paper.

William Crookes to [James] Dewar  DEWAR/DId/26  11 Aug 1874

2 pp

Contents:
London MS
Has programme of work planned using radiation of different wave lengths and intensity. Comments on variation in action of ultra violet rays according to the surface on which they are received. Refers to experiments with polarised light received on suspended tourmaline.

William Crookes  DEWAR/DId/27  18 Nov 1880

5 pp

Contents:
Printed
On Heat Conduction in Highly Rarefied Air.
Proc. Royal Society, No.208, 1880, pp.239-243.

William Crookes  DEWAR/DId/28  10 Aug 1903

1 p

Contents:
Typescript & MS
Experiments on the magnetic deflection of the redium emanations. Notes.
With 5 magnetic deflection photographs: DEWAR/DId/29-33

Pierre. Curie to [James] Dewar  DEWAR/DId/34  8 Jan 1903

12/3 pp
Language:  French

Contents:
Paris MS;
Sorry to learn of Dewar's ill-health. Comments on progress of paper. Dealandres will complete the examination of the spectra and will try to heat the tube. His wife is very tired but is not ill.

[Pierre] Curie to [James] Dewar  DEWAR/DId/35  9 Jan 1903

2 pp
Language:  French

Contents:
Paris MS; postcard;
Acknowledges letter. Sorry Dewar is still not well. Has observed the emanation of radium in the gas given off from Plombiere water. Comments on Deslandres' results melting the bromide of radium in a quartz tube.

[Pierre] Curie to [James] Dewar  DEWAR/DId/36  22 July 1903

4 pp
Language:  French

Contents:
Paris MS;
Comments on proposal that he work with Dewar on the mesurement of the heat given off by radium in liquid hydrogen. Does not like publishing incomplete results. Because of this Rutherford and Born have published things before him, although he did the work first. Does not think the question of priority is of very great importance. Discusses work on the heat given off by radium in liquid oxygen. If radium is liberated from helium, the discovery would have important consequences. Is interested in Strutt's work on copper and mercury.

[Pierre] Curie to [James] Dewar  DEWAR/DId/37  10 Nov 1903

2 pp
Language:  French

Contents:
Paris MS;
Comments on award of the Royal Society's Davy Medal. Asks if Dewar will resume the experiments on the heat given off by radium in liquid hydrogen; comments on this.

[Pierre] Curie to [James] Dewar  DEWAR/DId/38  29 Dec 1903

2½ pp
Language:  French

Contents:
Paris MS;
Sorry Dewar has been ill. Discusses Deslandres' work examining the bromide of radium in the spectroscope and on the helium spectrum. Would like to see published the spectroscopic work Dewar did with Liveing; comments on this.

[Pierre] Curie to [James] Dewar  DEWAR/DId/39  11 Jan 1904

2½ pp
Language:  French

Contents:
Paris MS;
The rays which Deslandres thought were new, were found to be the spectrum of the band of the oxide of carbon; comments on this. Has not presented the work to the Academy because the interpretation of the experiments is doubtful. Comments on Work which he thinks should be published. Asks for clarification about the gas which Dewar obtained heating a glass tube.

File e: Correspondence - D  DEWAR/DIe  1869-1923

Allen Dalzell  DEWAR/DIe/1  14 Oct 1869

1 p

Contents:
Edinburgh MS
Receipt to Dewar for payment for articles from the Laboratory of Allen Dalzell, dec'd.

Allen Dalzell  DEWAR/DIe/2  23 Oct 1869

1 p

Contents:
North Berwick
Receipt to Dewar for payment for articles from Dalzell's laboratory in Edinburgh.

Charles Darwin to -  DEWAR/DIe/3  15 July 1873

¾ p

Contents:
Beckenham MS
Thanks for essays. Investigations seem very important and interesting.

H.Debus to [James] Dewar  DEWAR/DIe/4  18 July 1914

5 pp

Contents:
Cassel MS
Thanks his English scientific friends for their congratulations on his 90th birthday. Would like to visit England but his doctor has forbidden him to travel; comments on this. Asks Dewar to convey his thanks to those who wrote to him.

H.Deslandres to [James] Dewar  DEWAR/DIe/5  30 August 1910

2½ pp
Language:  French

Contents:
Paris MS;
Thanks Dewar for invitation to give a Friday Discourse at the Royal Institution.. Discusses plans for his lecture.

H.Sainte-Claire Deville to [James Dewar]  DEWAR/DIe/6  24 April 1874

1¾ pp
Language:  French

Contents:
Paris MS;
Comments on Dewar's work. Dewar's success in obtaining Chair at Glasgow would give him great pleasure.

[James] Douglas Hamilton Dickson to [James Dewar]  DEWAR/DIe/7  20 Aug 1879

2¾ pp

Contents:
Cambridge MS
Gives dates of lectures by the Jacksonian Professor [Dewar].
Gives details of critical temperatures for carbon dioxide.
Thinks he will be able to get rid of the air in Andrews' carbon dioxide experiment; comments on this.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/8  7 Jan 1893

4 pp

Contents:
Cambridge MS; part of letter
Temperature of ethylene in bulb is constant; comments on this.
Quantity of heat entering is proportional to area of the surface of the ethylene; discusses this. Gives tables showing rate of evaporation in spherical bulb and in cylinder.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/9  10 Jan 1893

4 pp

Contents:
Cambridge MS
Made a mistake in the cylinder figures. Outlines reason why cylinder might be preferable to the sphere. Puts forward hypotheses to explain rate of evaporation. Dewar is right to deal with the sphere only from full to ¾ full. Comments on Dewar's experiment with free mercury in rhe exhausted bulb.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/10  11 Jan 1893

3 pp

Contents:
Cambridge MS
Gives details for calculation of vapour-pressure formula [in connection with work on vacua and liquid atmospheric air]. Will be pleased to have a discussion about atmosphere.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/11  17 Jan 1893

4 pp

Contents:
Cambridge MS
Comments on Deschanel's work on the height of the homogeneous atmosphere and Laplace's work on the barometer. Comments on formula he has worked out; rate of diminution of temperature is inversely proportional to the square of the distance from the earth's centre.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/12  18 Jan 1893

4 pp

Contents:
Cambridge MS
Laplace assumes the arithmetical law for variation of temperature; comments on this. He worked in Dewar's adiabatic idea and was able to express p in terms of t; discusses this. Comments on the mercury correction and on Dewar's statements "the sum of temperature in the air correction for high elev[ation] being neg[ative]".

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/13  19 Jan 1893

1½ pp

Contents:
Cambridge MS
From Laplace's theory with the constant to give loss = 4°C per mil then - dt/dx = t/68 ---- i and t=toe -x/68 or log10 to/t = x/156 -------- ii.
Gives calculations using formulae; at 100 miles the temperature of boiling point of oxygen. Hopes the figures will be of use.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/14  19 Jan 1893

3½ pp

Contents:
Cambridge MS
Interesting that the Laplace formula and the Lindeman formula give the same dt/dx; at the earth's surface, namely 16°C per mile.
Discusses the Laplace formula. Comments on "Trixie's" ill-health. Hopes to be able to attend lecture.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/15  4 April 1894

2¾ pp

Contents:
Cambridge MS
Dewar's torsional result is most interesting. Comments on Young's modulus formula. Pleased Dewar is to try other metals as well as fusible metal. Interesting if it turns out that for each metal the temperature coefficients of change of its K and n (and therefore, M) are the same; discusses this. Asks if Dewar could get values for spiral springs made of each of the metals for which he determines the M and n variations. Hopes to see portrait on Saturday; comments on this.
MS calculations added by Dewar; 1p.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/16  24 March 1895

4 pp

Contents:
[Cambridge] MS
Referring to Wroblewski's equation for hydrogen, to van de Waal's equation and to Clerk Maxwell's condition for determining the pressure of the boiling point on an isothermal, discusses plan to solve the cubic I for various values of T until they get that cubic whose roots, with T, will satisfy II. Boiling point of hydrogen is 20 absolute. Comments on this, referring to Wroblewski's formula and to Gay Lussac's Law.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/17  15 May 1895

3 pp

Contents:
Cambridge MS
Has repeated the calculation and gets specific heat equal to 059667. Gives details of proposed experiment with silver and platinum wire at 0°. Pleased the Duchess was so contrite and is coming on Thursday.

[James Douglas Hamilton Dickson] to [James] Dewar  DEWAR/DIe/18  1 April 1899

6 pp

Contents:
Cambridge MS; incomplete
Discusses Kohlrausch's formula
t =H-Ho/[alpha]Ho-3[beta]H (1+v'/v H/H 1/1+[alpha]t')
Thinks Kohlrausch's theory is wrong; he assumes density of the gas is the same in AB where the temperature is t1 and in BC where the temperature is t, but the connection between the contents of AB and BC is that the pressures in the two spaces are equal. Gives details of formula he worked out using idea of equal pressures and discusses this.

[James Douglas] Hamilton Dickson to [James] Dewar  DEWAR/DIe/19  3 April 1899

4 pp

Contents:
Cambridge MS
Discusses the Callendar Formulae
PR = R - Ro/R1 - Ro 100 and T - PR = d(T/100 - 1) T/100

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/20  10 April 1899

4 pp

Contents:
Southsea MS
Discusses Chappins' formula: difficulty is caused by the -273 at the end. The formula
T1 = PT - PTo/P;To 273 is correct at all temperatures near or below the boiling point of hydrogen. Pleased Mrs Dewar is well. Has looked through the point Dewar raised about the helium line giving so low an absolute temperature. Comments on the formula
T + 273 + 273e + T 250/273e/273 + 273e = p/po Hopes to finish his papers tomorrow. Conveys his sympathy to the Dewars.
With notes on the formulae. Does not think it explains the He line giving absolute zero so far below -273. 2pp, MS; DEWAR/DIe/21.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/22  13 Jan 1900

4 pp

Contents:
Southsea MS
Does not agree with Van der Waals' explanation of his result. Does not agree with Van der Waals' statement that the sure sign of liquefaction of gases must be found in a fall in the value of p2 - p1/t2 - t1 discusses this.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/23  7 June 1900

4 pp

Contents:
Cambridge MS
Gives details of calculations concerning latent heat of nitrogen and hydrogen, giving pressures observed and pressures calculated from formulae. Thanks the Dewars for taking Nollie to hear the Walkure. Delighted to hear about helium; comments on this. "The absolute zero will have to look out.' It is glorious!" Trixie had a nervous attack but is better.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/24  23 Nov 1901

5 pp

Contents:
Cambridge MS
Thanks Dewar for letters and for hydrogen paper. Has recalculated the ether number; comments on this. Gives critical temperature of carbonyl and details of densities. Comments on Fl. benzol. Comments on the values he got for 1/v dv/dt Tc.
Thinks he has missed Dewar's point.
Thanks the Dewars for having Douglas.
MS notes added [by Dewar] on carbonyl of nickel, Ni(CO)4 ½p, MS.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/25  24 April 1902

8 pp

Contents:
Cambridge MS
Discusses Van der Waals' formulae concerning specific heat and critical pressure and the point of inversion of the Joule-Thomson effect. Comments on the temperature obtained for hydrogen. Discusses [William Travers'] paper on heat and the use Rose-Innes makes of W.T.'s figures to verify his (R-I's) law. Agrees with Dewar that "both Rose Innes & Clzewski are 'faking' to produce Travers' temp of crit point of H, 40°, to be correct". W.T. continually says his numbers only hold up to a few atmospheres; Olzewski uses them with pressures from 150 to 117 and 110 atmospheres. Asks for clarification of reference to Witkowski. Does not think the values they got of a and b for hydrogen and oxygen would help as they were not consonant with the whole of the experiments.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/26  27 April 1902

7 pp

Contents:
Cambridge MS
Gives details of formulae he has made out for the Joule-Thomson effect and discusses these. Comments on the Gutta Percha Corporation and on people who have lost money over the matter. Comments on formula giving close connection for mean density and temperature.

[James Douglas Hamilton Dickson] to [James] Dewar  DEWAR/DIe/27  29 April 1902

4 pp

Contents:
Cambridge MS; incomplete
Sorry to hear that Mrs Dewar is ill. Using Van der Waals' formula, the exact value is t' = 27/4 tc(v'-b/v')², but Clausius's formula becomes t' = 9 2/4 tc (1 + -). Sarrau worked out the Clausius constants for H, N, O, CH4, CO2 and C2H4; comments on these. Does not see how the factor Ha-b comes in; comments on this. Time to settle the Tc of hydrogen; would be a pity if Olzewski spotted and published t' = 27/4 tc.

[James Douglas Hamilton Dickson] to [James Dewar]  DEWAR/DIe/28  24 June 1902

3 pp

Contents:
Cambridge MS; incomplete
Notes his recalculations for hydrogen and oxygen from data from Dewar and Travers and plots temperature/pressure curves for these gases; comments on calculations. Transformation of a Gibbs into a van der Waals is legitimate at any temperature but cannot allow that the van der Waals "thus found, holds at any other temperature". The transformation agreed closely with a van der Waals calculated from absolutely different data.

[James Douglas Hamilton Dickson] to [James] Dewar  DEWAR/DIe/29  24 July 1902

4 pp

Contents:
Cambridge MS; incomplete
Pleased the van der Waals was of use. Glad Dewar is so pleased about [Christine] Meyer's work. Aimed to get the "point" for oxygen, corresponding to zero for C6H5Fl; in the process discovered a strict mathematical proof, Comments on this with particular reference to Mme Meyer's work and the law of correspondence.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/30  17 Aug 1902

7 pp

Contents:
Westleton, Saxmundham MS
Comments on the Coronation. Refers to proposed visit to the British Association meeting. Sir G.Reid wrote to say the portrait was finished. Comments on the game of badminton. Discusses work on the constants of oxygen, referring to Mme Meyer's figures. Outlines proposed method of "catching" hydrogen by drawing hydrogen vapour tension curve on an elastic sheet.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/31  11 Dec 1902

4 pp

Contents:
Cambridge MS
Hopes Dewar will get liquid helium. Dewar's curves are marvellous for two reasons: the value of the introduction of time into the observations and for showing the phenomena of melting. Discusses the curves with reference to the triple point, the temperature of melting and the results of the Gibbs he tried for the gas-liquid part.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/32  12 Dec 1902

3 pp

Contents:
Cambridge MS
Sorry to hear of Dewar's trouble with the helium. Gives details of a curve he has calculated from the Bath curve. Invites Dewar to dinner.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/33  6 Jan 1903

8 pp

Contents:
Cambridge MS
Sorry Dewar is no better. Wonders whether mineral waters are really good for you. Is sure anxiety about the lecture must be bad for Dewar. Read Callendar's paper; comments on the inverse square formula. They are using the connection between t and tc given by van der Waals for application to a formula deduced from Clausius; comments on this. Comments on Sarrau's figures for H and CO2, which do not accord with experimental results. [Callendar] limits his work to "moderate pressures" and to gases in the "imperfect" state, referring to Regnault's "plus que parfait" and not to the Joule-Thomson inversion point; discusses this. Comments on Callendar's remark that van der Waals' formula is useless for finding Tc. Outlines the Joule-Thomson formula and the Love formula.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/34  8 Jan 1903

8 pp

Contents:
Cambridge MS
Discusses van der Waals' and Clausius's formulae concerning temperature of inversion. Comments on Amagat's work on hydrogen and on his formula for hydrogen; seemed to be an opportunity of getting the point of inversion. Plotted [Joule-Thomson's] CO2 results for cooling as ordinate; comments on this. Callendar barely referred to Love's equation. Discusses Callendar's "c" which Callendar defined as representing a volume which "denotes the diminuation of volume caused by the formation of molecular aggregates". Comments on Callendar's figure for the liquid volume of krypton at its boiling point. Some reserve needed before Callendar's paper can be trusted.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/35  10 Jan 1903

32/3 pp

Contents:
Cambridge MS
Comments on Callendar's inversion formula. Must look into the units used by Callendar and by Joule-Thomson; comments on this. Thanks Dewar for thinking about the Westminster account; comments on this. Has made good progress with paper.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/36  13 Jan 1903

4 pp

Contents:
Cambridge MS
Dewar's equations are correct. Recalculated equations for lower temperature using Clausius values; discusses this. Shows how near -51 must be to the actual case. Curious that Dewar's pressure should be so near 45.5 tons; suggests test Dewar might try. Refers to papers by Tamman and comments on Callendar's work.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/37  27 May 1903

2 pp

Contents:
Cambridge MS
Received the thermo results and is looking out his old calculations and cirves. Gold came out as a straight line to centigrade degrees. Comments on this and on platinum and German silver curves. Suggests trial of a gold-German silver couple.
With drawing of gold and lead thermo-electric curves: 1p, MS; DEWAR/DIe/38

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/39  1 June 1903

4 pp

Contents:
Cambridge MS
Has found error in his gold-lead thermal line; comments on this and on the platinum-lead and German silver lines. Was interested to hear of Dewar's low temperature work with radium.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/40  5 June 1903

3 pp

Contents:
Cambridge MS
Has got the full curves of platinum-lead and gold-lead drawn to scale. Discusses these.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/41  6 June 1903

4 pp

Contents:
Cambridge MS
Is enclosing diagram of the parabola and Tait line of the platinum-lead and gold-lead thermo-electric observations; discusses these. Comments on progress of work on German silver. Asks if Dewar could get the old wires he used for his thermo-electric experiments. Believes the curves make a quite certain thermo-electric set for temperatures.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/42  22 Oct. 1903

32/3 pp

Contents:
Cambridge MS
Gives details of formulae resulting from observations on the small bulb thermometer; discusses results in particular evidence supporting his theory that the hollower the curve the more the C tends to change its sign. Thinks he has collected all Travers' results.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/43  30 Dec 1903

3 pp

Contents:
Cambridge MS
In the Callendar and Dickson formulae (parabolic), the dR/dt would increase, the lower the temperature, but the experiments show the opposite; discusses this. Dewar's experiments show that below the piece of curve ABC, the curve swings out, and no parabola suits the range of observations down to the boiling point of hydrogen and dR/dt may begin to diminish.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/44  8 March 1907

4 pp

Contents:
Cambridge MS
Has worked up the Olzewski inversion points and thinks they are either a fraud or incomplete, or it is an inversion point other than the Joule-Thomson one. Re-investigated the formula for inversion temperature and found it agreed with his former result. Gives details of his observations on air and comments on Olzewski's findings concerning the inversion points of air and hydrogen.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/45  13 May 1907

5¼ pp

Contents:
Cambridge MS
Discusses Dewar's work on radiation and convection effects in liquid air and liquid hydrogen. Does not think Dewar should multiply together the radiation and convection effects; discusses this and suggests formulae to give equation A=B x 24 x 106 where B is the radiation constant and is therefore independent of the density. Thanks the Dewars for their kindness to Trixie who greatly enjoyed "Siegfried".

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/46  14 May 1907

3¾ pp

Contents:
Cambridge MS
Does not see how to connect Dewar's experiment in which he got equal volumes of air and hydrogen evaporated, with the density of the air in the radiometer when the vacuum is obtained by charcoal and hydrogen. Discusses way in which this might be done.

[James Douglas Hamilton Dickson] to [James Dewar]  DEWAR/DIe/47  6 June 1907

12/3 pp

Contents:
[Cambridge] MS
Thinks Olzewski's curve is a parabola on van der Waals' equation of state; comments on this. Has worked out Porter's results in his own form and has found the envelope AB of all the curves; it is also a parabola. Discusses this and Porter's hydrogen results.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/48  7 June 1907

31/3 pp

Contents:
Cambridge MS
Pleased to hear Lady Dewar is better. Comments on Trixie's health. Will look forward to hearing about Dewar's lecture. Refers to deaths of [E.J.] Routh and Prof [A.] Newton. Does not understand Olzewski's curves. His theory agrees with Porter's and comes from Kelvin's papers: the curve should be parabolic. Has calculated from Olzewski's tables and gets very good hyperbolas; comments on this. The observations require hyperbolas, so he must amend the theory.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/49  2 July 1907

3½ pp

Contents:
Cambridge MS
Pleased Dewar and Lady Dewar are well and had a good time at Dollar. Has friends who sometimes help with Athenaeum business. Edwards does not write for the Athenaeum but sometimes reviews books for it. Trixie is better. Is trying to get Glzewski's experiment cleared up and took the original German article to Breul; comments on the translation. Is sure that the experiment is not Kelvin's experiment of the porous plug.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/50  21 July 1907

4 pp

Contents:
Cambridge MS
Comments on Dewar's visit to Dollar. Comments on his plans for a holiday. Has been reading up all he can on the Thomson-Joule inversion point and is more and more convinced that the Olsewski experiment does not deal with the true inversion; comments on this.

[James Douglas Hamilton Dickson] to [James] Dewar  DEWAR/DIe/51  13 May 1911

3 pp

Contents:
[Cambridge] MS
Has found the connection between Waterston and van der Waals. Discusses this, giving his calculations. His equations were derived from experiments made at the critical pressure. Avenarius got equally good results for a Waterston when the pressure was the saturated pressure; comments on this.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/52  16 May 1911

4 pp

Contents:
Cambridge MS
Is sending Onnes' last batch of communications containing the low temperature resistances. Onnes' conclusions agree with Dewar's and put the finishing touch to any idea of a parabola being sufficient to reduce Pt temperatures to absolute temperatures. Gives details of equations in connection with the Waterston derived from van der Waals. There are limitations in the process of the deduction from van der Waals. The true deduction he thinks is "if you calculate a/b for two cases from ½ to 15/16 of the crit. temperature or within that range then their difference is equal to the diffce of the logs of the crit. temps".

[James Douglas Hamilton Dickson] to [James] Dewar  DEWAR/DIe/53  6 April 1912

2 pp

Contents:
Cambridge MS
Hopes enclosed note will help. May rely on the simple equation: b = 2.2544 + .52(s-.500) to give b for any s quickly; comments on this. Has set out what he was saying about the equation aW - by = wx necessarily representing a straight line; discusses this. Comments on how close their methods come.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/54  23 April 1912

3 pp

Contents:
Cambridge MS
Has been at the S.H. again - the half-atom. Thought the ½ atom and 1 atom lines might meet but finds they are strictly parallel. Discusses possible formulae for determining the line.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/55  24 April 1912

1 p

Contents:
Cambridge MS
Is sending the least squares results of the last group of numbers. Is having a survey of all the results. Telegraphed good wishes to Lady Dewar.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/56  27 April 1912

3 pp

Contents:
Cambridge MS
Is sending notes on N + glass and on N alone. Has not yet looked at N + mercury. Observations with large amounts of N (50-60gms) develope an error which is too prominent to allow such observations to be associated with those where small amounts of N are used. Must keep together observations made in one calorimeter. Discusses observations.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/57  11 June 1912

2½ pp

Contents:
Cambridge MS
Discusses results of the experiments with the 1 atom and ½ atom groups of Hg. Refers to Haldane's becoming Lord Chancellor.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/58  13 June 1912

2¼ pp

Contents:
Cambridge MS
Comments on 2-atom results and on the glass correction.
Comments on Trixie's health and on illness of Mrs Ward, the Master's wife.

[James Douglas Hamilton] Dickson to [James] Dewar  DEWAR/DIe/59  13 March 1923

4 pp

Contents:
Cambridge MS
Understands the Master wrote to Dewar about the audit meeting, the main purpose of which was to instruct junior Fellows. Some of the senior Fellows are concerned about Walker's report. Discusses the report about the financial position of the College [Peterhouse].

H. duBois to James Dewar  DEWAR/DIe/60  24 June [ch.1900]

3½ pp

Contents:
Scheveningen MS
Asks if Dewar has published any cryomagnetic work since 1898, In volume 63 of Proceedings of the Royal Society, Dewar promises a full study of Curie's law at low temperatures. Asks if Dewar has tried ozone and comments on this. Asks if he is sure that the susceptibility of liquid oxygen diminishes when the field increases from 500 to 2500 c.g.s. and comments on this. Supposes that Dewar's negative result with liquid fluorine is to be interpreted so that the liquid is diamagnetic. Would be interesting to have the measurements of diamagnetic negative susceptibility. Asks if anything is known about this with respect to argon.

Jean-Baptiste Dumas to James Dewar  DEWAR/DIe/61  12 July 1874

1 p
Language:  French

Contents:
- ? - les Bains (Tere) MS;
Assessment of Dewar's work in connection with chair at the University of Glasgow.

File f: Correspondence - E  DEWAR/DIf  1891

War Office (Ralph Thompson) to James Dewar  DEWAR/DIf/1  18 Aug 1891

1 p

Contents:
Pall Mall MS
Thanks Dewar for his service on the Explosives Committee.

File g: Correspondence - F  DEWAR/DIg  1892-1911

George Francis Fitzgerald to James Dewar  DEWAR/DIg/1  20 June 1892

31/3 pp

Contents:
Trinity College, Dublin MS
Has been thinking about the magnetic properties of oxygen and its transparency and it struck him that oxygen should behave in a curious way in respect to polarised light; discusses this. There should be no difficulty in trying the experiment which would be an interesting confirmation of Maxwell's theory. If the experiment fails it will still tell them a great deal because it may be that the magnetic properties of the liquid are not called out by the rapidly alternating forces they can see.

George Francis Fitzgerald to James Dewar  DEWAR/DIg/2  22 June 1892

1¼ pp

Contents:
Trinity College, Dublin MS
Diamagnetism is such a feeble phenomenon, he would not expect much effect. If oxygen is at all comparable with iron, its magneto-optical properties should be much more marked than that of most transparent bodies. If its magnetic permeability is only comparable with the diamagnetic permeability of CO, it will need very delicate observation to detect its effects.

F.H.Flack to James Dewar  DEWAR/DIg/3  3 Aug 1911

1 p

Contents:
Cambridge MS
Has got 20gms of highly absorbtive charcoal; comments on this.

F.H.Flack to James Dewar  DEWAR/DIg/4  undated

1½ pp

Contents:
Cambridge MS
Gives results of air and hydrogen experiment with London Cocoa Nut Charcoal.

F.H.Flack to James Dewar  DEWAR/DIg/5  Undated

2½ pp

Contents:
Cambridge MS
Gives results of charcoal experiments.

F.H.Flack to [James Dewar]  DEWAR/DIg/6  undated

1 p

Contents:
Cambridge MS
Gives details of method of experiment removing HCl from charcoal which had been left to stand in HCl for 6 days.

F.H.Flack to [James Dewar]  DEWAR/DIg/7  undated

1 p

Contents:
Cambridge MS
Gives details of specific gravity of cocoa nut charcoal.

F.H.Flack to [James Dewar]  DEWAR/DIg/8  undated

1 p

Contents:
Cambridge MS
Thanks Dewar for cheque. Will send notes on absorption experiments. London Charcoal absorbs 9.5cc of air per gram.

File h: Correspondence - G  DEWAR/DIh  1869-1919

Thomas Graham to [James Dewar]  DEWAR/DIh/1  5 Aug 1869

12/3 pp

Contents:
Royal Mint MS
Was interested in Dewar's paper on palladium. Thinks Dewar is advancing in the right direction. Very proper that Dewar should "undertake the duty of teaching chemistry".

William J. Green to [James Dewar]  DEWAR/DIh/2  27 Sept 1907

2 pp

Contents:
Davy Faraday Laboratory MS
Proceeded with experiment using Kipp CO2, solidified and exhausted, and is enclosing results. Difficult to get pure enough gas to effect last washing out before apparatus is exhausted preparatory to being filled with pure gas; discusses this. Will try experiment using B2O3 mixture for providing the final gas.

William J. Green to [James Dewar]  DEWAR/DIh/3  30 Sept 1908

3 pp

Contents:
Davy Faraday Laboratory MS
Discusses the St Louis plant for making liquid hydrogen.
Notes added [b Dewar] on Onnes' method of making liquid hydrogen: 2/3p, MS.

William J. Green to James Dewar  DEWAR/DIh/4  13 July 1910

4 pp

Contents:
Royal Institution MS
Has repeated the solid oxygen tension observations using glass sealed joints. Gives details of observations and sketch of the apparatus.

William J. Green to [James Dewar]  DEWAR/DIh/5  20 Dec 1916

3½ pp

Contents:
Royal Institution MS
Has arranged for Mr Bullimore to send the report on the relative behaviour of the valves exhausted there with those done previously by Bullimore. Gives details of the "Kenetron" valves which Bullimore has sent them. Bullimore has also sent the simple factory form of McCleod with Hg reservoir on barometer tube with bunsen trap for gases coming up the I.R.tube; comments on this. Mr Coombs is coming to report on progress with the lecture diagrams. Thought Coombs could produce a diagram embodying the main results of diffusion through bubbles; comments on this. Discusses attempt to get a quickly thinning solution with a low glycerin percentage. Large percentage of glycerin is necessary to prevent the cloudiness and viscousness produced by dissociation. The two large bubbles are still "alive, very thick and beautiful". Asks about diagrams of neutral NH3 soap and of the progress of dilution of "wet" bubbles.

William J. Green to [James Dewar]  DEWAR/DIh/6  20 Dec 1916

22/3 pp

Contents:
Royal Institution MS
Relative amounts of glycerin and NH3 have been altered to be of the same order instead of 10 to 1 or 5 to 1 as in previous ammonium soaps. No dissociation in the diluted soap and bubbles diluted by washing because the relative proportion was not much disturbed, but 5% glycerin as now prepared is insufficient to keep the 5% Amm. soap undissociated by dilution. Comments on this and on other soaps which remain clear with less than 5% glycerin to 5% soap. Gives details of diagrams concerning bubbles which are being prepared.

William J. Green to [James Dewar]  DEWAR/DIh/7  6 Sept 1918

7¾ pp

Contents:
Royal Institution MS
Is sending bundle of abstracts. Principal trouble with the liquid air machine is a breakdown of the regenerator vacuum vessel; discusses this and the reconstruction of the machine. Comments on quartz filling vessels. Two sets of German silver half spheres have been delivered. Comments on spinnings of Al alloy at the Science Industries Exhibition. Heath is including the emissivity of Al in his other discs; discusses Heath's work. Will work on the curves of cooling and evaporation rates from cooled SiO2. Comments on Heath's work on the bubble column contraction photographs. Comments on Peddar's work on group separations of acid insoluble sulphides. Refers to order for sheet rubber and to letter from British Cellulose & Chemical Co. asking if 10mm thick sheet 'cellulose material' would be of use for experiments. Hopes Dewar will soon recover from the eye trouble and neuritis.

William J.Green to [James Dewar]  DEWAR/DIh/8  21 Sept 1918

5 pp

Contents:
Royal Institution MS
Is enclosing the tabulated values of the silvered quartz and glass cylindrical vessels. Quartz seems inferior to glass for low temperature isolation; discusses this. A Hg mirror in a glass flask would be interesting. Refers to work on absorption by Harrington's C-N Charcoal. Comments on work on black bubble columns. Discusses examination of the No.2 Air Pump and of the CO² pump. Emissivity results are still at variance with the published values. In connection with this, he did not think anything other was being attempted than trying the behaviour of that particular steam cell and thermopile with regard to giving approximately correct values for known materials; comments on this. Pointed out to Heath the omission in his memo of the black disc deflection for reference.

William J. Green to [James Dewar]  DEWAR/DIh/9  13 Sept 1919

3½ pp

Contents:
Davy Faraday Laboratory MS
Scotts' men have left but will return to fix new bend in exhaust pipe of small gas engine. Comments on adjustments made to the CO2 pump. Water separator on the air compressor blew out its valve spindle; comments on repair of this. Outlines adjustments made to gas engine which persistently slowed up when on load. Thermoscope work impeded by limited supply of liquid air; comments on work which has been done on gases. Comments on possible alterations to apparatus. Collapsed bubble was re-expanded to over 10cms diameter; comments on this. The comparison aspirator had a new 18cms bubble over water with a 3cm bubble below; after thickening by condensation the extra induced drainage from the small attached bubble thinned the whole arrangement to black and half-black in less than a day. Comments on drainage collection. Large wet-air bubbles on rings frequently went black rapidly.

William J. Green to [James Dewar]  DEWAR/DIh/10  15 Sept 1919

2 pp

Contents:
Davy Faraday Laboratory MS
Comments on Dewar's recommendation that Crossleys work on the gas engine and Scotts on the compressor. Thermoscope membrane burst; is trying to see if a stretched membrane is less stable when drier. Shutter defects have been removed. After "dummy" operations to see if ice deposit inside Cu hood is increased, the cell must be tested for lightness and security: comments on this. No doubt about the persistent instruction of ice into the inner vessel; comments on this.

(William) J. Green to [James Dewar]  DEWAR/DIh/11  20 Sept 1919

2¾ pp

Contents:
Davy Faraday Laboratory MS
A very good Tyndall zone was reflected and focussed into the thermoscope interior. Clean conditions can only be obtained with a perfectly air tight hood; discusses this. Membranes made from balloon rubber are not less stable in dry atmosphere; comments on this. High zero was due to leak in badly soldered joint; this has been put right. Of substances tried after purification, CCl4 shows difference of 53% to 36% between two fractions boiling 3° from one another; comments on this. Proprionic acid transmits about 22%. High speed emery wheel in the Davy Faraday shop burst; five panes of roof glass smashed. It was a marvel that Dulan escaped. Large black bubble has contracted further. The double wet air bubble has acquired a pale amber tint. The old black film is still good.

[William] J. Green to [James Dewar]  DEWAR/DIh/12  25 Sept 1919

2 pp

Contents:
Davy Faraday Laboratory MS
Is e closing notes on trials of the separable hood on the thermoscope and measures of a variety of screens. Principal variation is leaving out the Cu-discs stopper except in the periods of equilibriation between sets of readings; comments on this. The AgCl and AgBr screens do not seem to need to be any thinner than the samples supplied by Matthey; thicker samples would be interesting to decide at what thickness absorption begins to be measurable. The CO2 pump is circulating more freely; comments on this. No sign of the new high pressure cylinder in Scott's workshop.

William J. Green to [James Dewar]  DEWAR/DIh/13  undated

2 pp

Contents:
Royal Institution MS
Cannot obtain all the information which Dewar wants at such short notice without disclosing its destination; understands Dewar does not want that. Comments on NH3 experiments.

C.E. Guillaume to [James Dewar]  DEWAR/DIh/14  16 June 1897

12/3 pp
Language:  French

Contents:
Sevres MS;
Dewar offered to see the effects of chilling metal samples in liquid air. He is ending two test-tubes, intended for tensile stength experiments, for Dewar to chill. Reminds Dewar of his promise to put the Bureau International des Poids et Mesures on mailing list for Proceedings of the R.I. Will send Dewar their "Procès Verbaux" and future issues of "Travaux & Mémo [...] ies".

File i: Correspondence - H  DEWAR/DIi  1883-1922

F.Haber to [James Dewar]  DEWAR/DIi/1  26 Dec 1910

2½ pp

Contents:
Manchester MS
Is to make arrangements for the Imperial Research Institute for Physical Chemistry in Berlin. Is on a short visit to England. Asks if he and his assistants might visit the [Royal Institution].

F.Haber to [James Dewar]  DEWAR/DIi/2  29 Dec 1910

12/3 pp

Contents:
Brown's Hotel, London MS
Thanks Dewar for letter. Will arrange appointment with him. Will visit the Davy Faraday Laboratory first. Thanks Dewar for allowing them to attend lecture.

Robert Hadfield (E.Mortimer, Secretary) to James Dewar  DEWAR/DIi/3  7 Jan 1914

1/3 p

Contents:
Sheffield typescript copy
Would like some experiments done on the effect of liquid hydrogen temperatures on manganese steel. Propose to test specimens after immersion in liquid hydrogen in intense magnetic fields to determine the saturation value of their magnestism. Resulting information may have important bearing on the allotropy question with regard to iron.

Assistant Secretary R.I. to E.Mortimer, Sec. to Robert Hadfield  DEWAR/DIi/4  8 Jan 1914

½ page

Contents:
Typescript copy
Is writing on behalf of Professor Dewar, who is convalescing from bronchitis. Dewar regrets he is unable to undertake any scientific project, even for an old colleague like Sir Robert Hadfield, but must confine his energy to completing his own investigations at the Royal Institution. Work at liquid hydrogen temperature can be easily carried out in Continental cryogenic laboratories.

George E.Hale to James [Dewar]  DEWAR/DIi/5  26 Nov 1922

2 pp

Contents:
Seville MS
Thanks Dewar for offer to look up favourable localities in England and Scotland for him. Comments on plan to visit Egypt. Will not return home before October although he will miss the total solar eclipse on 10th September which will be visible within a few miles of Mt Wilson. Hopes Lady Dewar is better. Comments on weather.

Nature  DEWAR/DIi/6  12 March 1908

1 p

Contents:
Printed cutting
Correction to announcement that Kamerlingh Onnes had liquefied helium. The substance produced was solid helium.

Helium  DEWAR/DIi/7  [ca. March 1908]

1 p

Contents:
Printed cutting
Report on the solidification of helium.

James Dewar to the Editor of The Times  DEWAR/DIi/8  14 April 1908

1 p

Contents:
Royal Institution printed cutting
Correction to announcement of solidification of helium.
Professor Onnes found that the helium used had been mixed with a small percentage of hydrogen. The solidification witnessed was due to that hydrogen. Comments on critical temperature of helium.

Helium  DEWAR/DIi/9  [ca. July 1908]

1 p

Contents:
Printed cutting
Report of the liquefaction of helium by Kamerlingh Onnes on 10 July.

Nature  DEWAR/DIi/10  20 Aug 1908

1¼ pp

Contents:
Printed cutting
Report on the liquefaction of helium by Kamerlingh Onnes.

[Farrer] Hershell, Baron H., to [James] Dewar  DEWAR/DIi/11  17 June 1895

1/3 p

Contents:
House of Lords MS
Regrets he and his wife are unable to accept Dewar's invitation.

E.F. Hickman to [James] Dewar  DEWAR/DIi/12  15 Nov 1902

4 pp

Contents:
Birchfield MS
Dr Gore sent him Dewar's Address as President of the British Association at Belfast. Is enclosing cheque as mark of his appreciation and of the pleasure derived from the study of the Address; comments on this. Comments on Gore's work on the scientific basis of morality and on other philosophic themes and refers to Oliver Lodge's article on "Science and Faith".
With typescript copy: 1½ pp; DEWAR/DIi/13

G.A.Hirn  DEWAR/DIi/14  1883

16 pp

Contents:
Printed; French
Phénomènes produit par les Bolides.

William Huggins to [James] Dewar  DEWAR/DIi/15  24 Nov 1887

4 pp

Contents:
Upper Tulse Hill MS
Is thinking of sending a paper to the Royal Society on the spectra of the nebulae. Discusses this work. Will have to refer to Dewar's work. Would like Dewar's opinion of the points he raises.

William Huggins to [James] Dewar  DEWAR/DIi/16  20 July 1890

3 pp

Contents:
Upper Tulse Hill MS
Discusses the continuous spectra of gases. As many nebulae have continuous spectra it is important to know if gas at the lowest visible temperature has a continuous spectrum; comments on this. Asks if Dewar has observed the lines of hydrogen and oxygen in his flames.

William Huggins to [James] Dewar  DEWAR/DIi/17  7 June 1898

2½ pp

Contents:
Upper Tulse Hill MS
Grieved that Dewar did not discover the new gas. The wave length of 5569.5 given to the most brilliant line in the green is very near the position given in his own paper some years ago for the chief line of the aurora; comments on this. Shall look forward to seeing Dewar's letter in Nature. Hopes Dewar is at the end of his worries.

William Huggins to [James] Dewar  DEWAR/DIi/18  19 Aug 1903

4 pp

Contents:
Upper Tulse Hill MS
Comments on spectra obtained from French and German radium salts. Refers to Ramsay's note in Nature on the gas from radium bromide. Refers to criticism of Miss Clarke's book by Gregory. In the Phil. Trans. there is Sir N.L.'s criticism of the astronomical part of Dewar's Belfast Address. Refers to Blythewood's detection of radioactivity in Bath water.

William Huggins to [James] Dewar  DEWAR/DIi/19  Friday night

2 pp

Contents:
Upper Tulse Hill MS
Explained in letter to Crookes, that he was always doubtful if the lines were due to helium. Comments on final form of paper in which he shows the strong line spectrum is really the band spectrum of nitrogen. Will call at the R.I. tomorrow if he can.

Francis Hyndman  DEWAR/DIi/20  28 Aug 1908

2 pp

Contents:
Printed cutting
The latest advance towards the absolute zero. Article from Engineering about liquefaction of helium.

Francis Hyndman  DEWAR/DIi/21  18 Sept 1908

11/3 pp

Contents:
Printed cutting
The absolute zero of temperature. Article from English Mechanic and World of Science, No.2269.

Lord Iveagh to James [Dewar]  DEWAR/DIi/22  21 April 1921

2 pp

Contents:
Grosvenor Place Xerox copy
Thanks Dewar for invitation to take Chair at a Friday evening discourse. Regrets he cannot accept as he is leaving England for some time on 30th April.

Correspondence & general, J-Z  DEWAR/Box D II  [n.d.]

File a: Correspondence - J  DEWAR/DIIa  1874-1910

R.Johnston to James [Dewar]  DEWAR/DIIa/1  22 Sept 1908

2 pp

Contents:
Royal Institution MS
Comments on sections of coil which he has wound. Believes Professor Onnes is taking four sections of similar coils all leading to one valve-box. Has enclosed section of type of coil used in hydrogen machine. Gives dimensions of vacuum vessels used in hydrogen machine. Thin German silver vessels as containers would be the most efficient for the work.
With MS notes [by Dewar] on quantities of liquid hydrogen produced; 3p.

R.Johnston to James [Dewar]  DEWAR/DIIa/2  22 Sept [?1908]

1¼ pp

Contents:
Royal Institution MS
Gives details of experiment with brass vessels, noting amount of gas produced per minute for exhausted vessel with asbestors, open topped vessel and unsilvered vacuum vessel of same dimensions.
Additional figures noted [by Dewar]; ¼p, MS.

G.Johnstone Stoney to [James] Dewar  DEWAR/DIIa/3  25 Aug 1899

22/3 pp

Contents:
Upper Hornsey Rise MS
Congratulates Dewar on solidifying hydrogen. Fact that helium has a lower boiling point than hydrogen is unexpected; asks if this might be connected with monatomicity of helium vapour. This might be reason why boiling point of mercury is so low compared with the metal. Hopes Mrs Dewar will soon be well.

[James Dewar] to J. Joly  DEWAR/DIIa/4  25 May 1895

2 pp

Contents:
Royal Institution MS
Read Joly's note in Nature about experiment on a gravimetric ice calorimeter. He has been using the same method to determine the specific heat of bodies between the boiling point of oxygen and OC. Not pleased with the accuracy of his results and will not publish until he is satisfied. When he does publish, will credit Joly with being an independent originator of the method.

J.Joly to [James Dewar]  DEWAR/DIIa/5  2 June 1895

3 pp

Contents:
Dublin MS
Sorry his note should forestall the publication of Dewar's own research. Perhaps he should not have published until he had done more experiments. Comments on Mr Asha's work [with the gravimetric ice calorimeter] in 1892. Comments on apparatus available. Never reached any definite conclusions as to the utility of the idea. Hopes Dewar will be able to be more explicit. Thanks Dewar for giving him priority.

H.C.Jones to [James] Dewar  DEWAR/DIIa/6  14 Sept 1904

4 pp

Contents:
Ebbw Vale MS
Acknowledges letters. Fred will do absorption experiment with liquid iron carbonyl (Fe(CO)5); comments on this. Gives details of a Cailletet experiment at 100. Comments on decomposition experiments. Will do work on the density of Fe2(CO)4 when he returns; comments on this. Has told Fred to study the action of light; comments on this.

H.O.Jones to [James] Dewar  DEWAR/DIIa/7  20 Aug 1905

4 pp

Contents:
Cambridge MS
Comments on progress of absorption experiments with Fe(CO)5. They are busy with the light experiments; comments on these.
Notes percentages of nitrogen from flour and gluten.

H.O.Jones to [James] Dewar  DEWAR/DIIa/8  26 Aug 1905

2 pp

Contents:
Cambridge MS
Comments on progress of work on decomposition of Fe(CO)5 by light.
With notes added [by Dewar] on experiments on decomposition by light; 2pp, MS.

H.O.Jones to [James] Dewar  DEWAR/DIIa/9  28 Aug 1905

7 pp

Contents:
Cambridge MS
Dewar should have received letter and notes. Thinks the paper would be more effective if light action were included; enough material for an account of the phenomenon. Analysis of the solid product, Fe2(CO)9 gave some trouble. Comments on some examinations of the chemical reactions of iron pentacarbonyl. Decomposition of Fe(CO)5 in sunlight is puzzling. Asks Dewar to let him know what conclusions he comes to. Fred will prepare another large iron tube, cobalt and Al2O3 tubes. Was surprised to learn that his certificate for the Royal Society will be considered so soon. Comments on papers he plans on the stereochemistry of nitrogen.
Notes added [by Dewar] on decomposition experiments: 1p. MS.

H.O.Jones to [James] Dewar  DEWAR/DIIa/10  29 Aug 1905

4 pp

Contents:
Cambridge MS
Sorry there were so many obscure points in his notes. Clarifies points raised about work on the decomposition of liquid iron carbonyl by light. All the experiments he described have been repeated twice.

H.O.Jones to [James] Dewar  DEWAR/DIIa/11  6 Sept 1905

3½ pp

Contents:
King's Lynn MS
Apologises for delay in replying to letter. Fred will try the Cailletet experiment at the first opportunity. Fred is to prepare iron and cobalt tubes; comments on this.

H.O.Jones to [James] Dewar  DEWAR/DIIa/12  11 Sept 1905

6 pp

Contents:
Cambridge MS
Has not received letter from Dewar. Gives details of experiment on decomposition of Fe(CO)5 in light at 100°C under CO2 pressure. Comments on cobalt tubes. Discusses experiments on distillation of mixture of Fe(CO)5 and Ni(CO)4 and on heating Fe2(CO)9 in a toluene bath. Comments on amount of CO2 produced by heating Fe2(CO)9.

H.O.Jones to [James] Dewar  DEWAR/DIIa/13  22 Sept 1905

3 pp

Contents:
Ebbw Vale MS
Acknowledges letters. Comments on testing of acetylene light on Fe(CO)5. Whole question of action of light on Fe(CO)5 and of heat on Fe2(CO)9 from the point of view of energy is very complicated. Thinks heat stops the action of light; comments on this.

H.O.Jones to [James] Dewar  DEWAR/DIIa/14  1 Oct 1905

4 pp

Contents:
Cambridge MS
Before he left on 1st September, most of the small tubes used for light experiments on solution on Fe(CO)5 were put in a drawer for future use. All the tubes contained crystalline solid Fe2(CO)9. Now many of the tubes contain no solid and all contain less solid. In the dark at ordinary temperature the solid is reconverted into the liquid under a slight CO pressure; comments on this. This observations seems in favour of the endothermic nature of the decomposition induced by light. Has put some tubes into sunlight to confirm the observation.

H.O.Jones to [James] Dewar  DEWAR/DIIa/15  2 Oct 1905

3 pp

Contents:
Cambridge MS
Notes the density of the solid iron carbonyl. Comments on further confirmation of the reversibility of the reaction in the cold. Pressure of CO has small effect on decomposition. Heated tubes in which Fe2(CO)9 had been deposited and found some solid was left. Conversion back into a liquid which is complete in the cold is not complete when hastened by heat under the same CO pressure; comments on this.

H.O.Jones to [James] Dewar  DEWAR/DIIa/16  26 March 1906

4 pp

Contents:
Cambridge MS
Thanks Dewar for letter and cheque. Gives summary of results of work on carbon oxidation products of the acids of HNO3 and KMnO4. Difficult to purify the methyl esters. Little doubt that the main product of HNO3 is mellitic. Specimen of NH4 salt will be ready for analysis tomorrow. Has told Fred to prepare and analyse the methyl ester of KMnO4. Refers to result of distillation of Bauer salt. Is coming to conclusion that in the reaction between Ni(CO)4 and CS2, the carbon of the CS2 must appear among the gases.

H.O.Jones to [James] Dewar  DEWAR/DIIa/17  23 July 1906

3 pp

Contents:
Cambridge MS
Fred has done extractions of both tubes. Would like some more liquid air. Comments on work on Ni(CO)4. Comments on work on molecular weight. Have a lot of liquid Fe(CO)5 and after completing the light actions with the galvanometer, might further examine some reactions.

H.O.Jones to [James] Dewar  DEWAR/DIIa/18  24 July 1906

2 pp

Contents:
Cambridge MS
Electrical experiments have been successful. Quite a large deflexion obtained with an aqueous solution of K3FeCy6 on exposure to light. Outlines results with iron carbonyl. Will try the same set of experiments at 60° when there no action of light at all.

H.O.Jones to [James] Dewar  DEWAR/DIIa/19  25 July 1906

3 pp

Contents:
Cambridge MS
Acknowledges letters. Sorry to hear of Dewar's illness. Outlines results of examination of electrical effects at 60°. Distinct current is produced merely by the action of heat on the solution, which is not all due to thermoelectric effects at the junctions. Deflexions he got were quite large.

H.O.Jones to [James] Dewar  DEWAR/DIIa/20  27 July 1906

4 pp

Contents:
Cambridge MS
Acknowledges letter. Is enclosing print of photographs of absorption spectra of the green Fe(CO)5. Discusses these. Has used lengths of Mg as Dewar suggested; results similar to those with sunlight flashes. No initial current before heating and exposure to light. Effect of heat is quite marked with NaCl solutions comments on this. Has been unable to repeat experiment to get quantitative results. Congratulates Dewar on award of Matteucci Medal.

H.O.Jones to [James] Dewar  DEWAR/DIIa/21  2 Aug 1906

3¾ pp

Contents:
Cambridge MS
Thanks Dewar for notes of experiments on electrical effect of light actions. Has made many experiments with various cells and finds the effect with alcoholic Fe(CO)5 is greater than with any other solution. Discusses experiments on electrical effect. Asks when Fred can visit. Hopes to get away in about three weeks

H.O. Jones to [James] Dewar  DEWAR/DIIa/22  6 Aug 1906

2 pp

Contents:
Cambridge MS
Is enclosing summary of results with light action; these are very puzzling. Asks if Dewar thinks anything else should be done with the green {Fe(CO)4}x. Thinks it is slightly magnetic.

H.O.Jones to [James] Dewar  DEWAR/DIIa/23  6 Sept 1908

3½ pp

Contents:
King's Lynn MS
Evidence supports hypothesis Dewar suggested to account for the effect of Ni(CO)4 as solvent. Comments on experiments to detect signs of combination. Thinks it will be difficult to prove the combination as it appears to be of an unstable kind. Suggests photographing the spectra of dilute solutions of Fe(CO)5 and Ni(CO)4 to show marked difference of colour.

H.O.Jones to [James] Dewar  DEWAR/DIIa/24  10 May 1910

11/3 pp

Contents:
Cambridge typescript
Gives details of experiment on action of sulphur on carbon at 44°. Has had throat infection. Comments on death of [Edward VII].

H.O.Jones to [James] Dewar  DEWAR/DIIa/25  11 May 1910

1½ pp

Contents:
Cambridge MS
Is sending diagram of apparatus. Acknowledges letter. Plug of cotton wool and of asbestos always produced a great reduction in amount of material condensed in the U tube and a great increase in amount of material deposited in the ozoniser and in the tube leading from it to the plug; comments on this. They are being held up by the breaking down of the pumps of the liquid air apparatus.

H.O.Jones to [James] Dewar  DEWAR/DIIa/26  12 May 1910

1½ pp

Contents:
Cambridge MS
Acknowledges receipt of notes. Will rewrite the information. Filtration seems to reduce the amount of material condensed so much that all the differences he observed could be accounted for in this way; discusses this. Will use silver instead of nickle; chose nickel as being efficient and because he had the possibility of a compound in mind.

H.O.Jones to [James] Dewar  DEWAR/DIIa/27  13 May 1910

1¼ pp

Contents:
Cambridge MS
The experiences Dewar described tally exactly with those which gave them so much trouble. The violent detonation and the quiet transformation seemd to take place without any reference to the conditions which were varied in every way he could think of. Hopes Dewar's experiments will solve the mystery. Accepted Dewar's suggestion that the determining factor was the temperature gradient in the condenser. Comments on sooty deposit left after detonation and on production of liquid CS2.

H.O.Jones to [James] Dewar  DEWAR/DIIa/28  15 May 1910

1 p

Contents:
Cambridge typescript
Is enclosing draft of paper. Has not heard results of Dewar's experiments on decomposition of carbon disulphide by heat; these might be included in paper. Comments on action of silver and nickel on gaseous CS. Will be ready on 2nd June; comments on slides and apparatus he plans to show.

H.O.Jones to [James] Dewar  DEWAR/DIIa/29  22 May 1910

2 pp

Contents:
Cambridge MS
Acknowledges letter. Hopes Dewar is no worse for his recent worries and for the "trials of Friday". Their laboratory was closed for Friday afternoon only. Comments on the illness of the Master of Clare College. Gives details of work on the action of metals on CS gas.

H.O.Jones to [James] Dewar  DEWAR/DIIa/30  25 May 1910

1 p

Contents:
Cambridge MS
Acknowledges letters. Comments on work on the action of metals on CS gas. Will call at the Royal Institution tomorrow if he has time.

H.O.Jones to [James] Dewar  DEWAR/DIIa/31  29 May 1910

1 p

Contents:
Cambridge MS
Has returned form to the Chemical Society. Comments on slides he has prepared. Pleased the metallic U tube is working. Has got experiments to work well and results seem to show that a filter alters the proportion of CS to CS2. Comments on this. Examinations begin on Thursday and "their tyranny" continues to nearly the end of the month.

H.O.Jones to [James] Dewar  DEWAR/DIIa/32  31 May 1910

2 pp

Contents:
Cambridge MS
Gives details of experiments which establish that an asbestos filter diminishes the rate of flow of CS2 vapour and lowers the ratio of (CS)x: CS2 in the vapour which passes it. This is due to the polymerisation in the ozoniser and leading tubes. Is trying to find out what finely divided nickel does to CS.

H.O.Jones to [James] Dewar  DEWAR/DIIa/33  3 June 1910

1¾ pp

Contents:
Cambridge MS
Sorry Dewar is not well. His paper seemed to interest the Chemical Society; comments on this. Was afraid the deposit on the quartz plate would give trouble in photographing the spectrum. Chief point of interest in experiments he described in last letter is that the filter reduces the amount of CS2 to 1/6 but reduces the amount of CS to 1/18; or less; comments on this. Finds that Al2O3 absorbs the CS and allows CS2 to pass; comments on this. Laboratory is disorganised because of examinations. Behaviour of nickel looks as if it decomposes CS and forms NiS

H.O.Jones to [James] Dewar  DEWAR/DIIa/34  6 June 1910

2 pp

Contents:
Cambridge MS
Comments on results of experiments heating CS. Comments on product obtained which appears to be a stable form of carbon mixed with sulphur and not (CS)x. Comments on results of experiment in which CSCl2 was exposed to sunlight. There is no doubt that Al2O3 caused the CS to polymerise. Does not think they lost any CS2; comments on this.

H.O.Jones to [James] Dewar  DEWAR/DIIa/35  14 June 1910

2 pp

Contents:
Cambridge MS
Has repeated Dewar's H2SO4 experiment. Gives details of results of experiments in which CS2 and CS were passed over H2SO4. Experiment is being repeated and the gases passing through B collected in charcoal and extracted from this by heating. This should tell them definitely what is taking place. It suggests CS + 2H2SO4 = S + 2H2O + 2SO2 + CO2.

H.O.Jones to [James] Dewar  DEWAR/DIIa/36  15 June 1910

¾ p

Contents:
Cambridge MS
Is enclosing proof. Further experiments with CS and H2SO4 confirmed former observations; comments on results. Gives result of experiment with CS and Fe2O3. Looks as if Fe2O3 decomposes the CS and forms iron sulphide.

H.O.Jones to [James] Dewar  DEWAR/DIIa/37  17 June 1910

1 p

Contents:
Cambridge MS
Gives results of further experiments with CS2 and H2SO4, and the result of experiment passing CS and CS2 over red lead.

James P.Joule to James Dewar  DEWAR/DIIa/38  [ca. 1874]

2/3 p

Contents:
MS
Has found the papers Dewar sent him of great interest and value. The papers "exhibit a rare degree of industry and ability for scientific Investigation".

File a(ii): Correspondence - K  DEWAR/DIIa(ii)  1893-1906

William Thomson [Lord Kelvin] to [James] Dewar  DEWAR/DIIa(ii)/1  28 Jan 189[3]

2 pp

Contents:
Glasgow MS
Thanks Dewar for letter of congratulation [on peerage]. Wonders when he will see Dewar's work on liquid oxygen and hydrogen again. Saw some of the machines being set up at the R.I. last Thursday.

Lord Kelvin to [James] Dewar  DEWAR/DIIa(ii)/2  19 May 1896

22/3 pp

Contents:
Chester Square, London MS
Sorry not to be able to accept invitation to dine with Dewar at the Athenaeum on 1st June. Sir Joseph Lister says he must keep his leg up as much as possible and must not dine out. Sorry to lose the opportunity of meeting the new Solicitor General. Had thought Lister would give him a complete "release".

Lord Kelvin to [James] Dewar  DEWAR/DIIa(ii)/3  17 Oct 1898

2 pp

Contents:
Largs MS; not K's hand
All he has published on the introduction and exhaustion of oxygen to and from our atmosphere is in The age of the earth; comments on this. Must excuse him from helping in any way other than as "auditor tantum" at Royal Institution's centenary celebrations. Feels overloaded with work abd is trying to prepare his Baltimore lectures for publication. Asks if Dewar has experimented on refractivities of liquid air or oxygen or nitrogen, or of glass or other solids at very low temperatures. Thinks such experiments might have important results. Will be in Glasgow until end of next week, then goes to Netherhall for four days.

Lord Kelvin to [James] Dewar  DEWAR/DIIa(ii)/4  31 Jan 1901

1 p

Contents:
Netherhall, Largs MS; postcard
Thanks Dewar for proof of paper on the boiling point of liquid hydrogen. It is most interesting and important.

Lord K[elvin] to [James] Dewar  DEWAR/DIIa(ii)/5  6 June 1903

4 pp

Contents:
Edinburgh MS
Asks if Dewar has done any work on radium at low temperatures. Wonders whether it stops glowing visibly when greatly cooled and glows again when watmed to or beyond 0°C. If this is so, thinks they could see a dynamical explanation of its radiation; comments on this. Returns to London on Monday. would appreciate a note on what is known of the effect of low temperatures on Becquerel radiation. Hopes Dewar and his wife have enjoyed the Whitsun holiday.

Lord Kelvin to [James] Dewar  DEWAR/DIIa(ii)/6  23 Aug 1903

4 pp

Contents:
Aix les Bains MS
Thanks Dewar for letter about his experiments with Curie on the heat emitted by radium at the temperature of liquid air. Refers to meeting with the Curies. Understands they are to do low temperature experiments with Dewar at the R.I. in October. Supposes they may consider it certain that a gramme of bromide of radium emits 90 gramme-calories per hour. In 1000 hours this would be many times as much heat per gramme of substance as is generated by combustion or any kind of chemical action. "I cannot think how Rutherford and others can complacently attribute the emission of heat by radiation to energy stored in the substance." Asks if Dewar can make anything of Rutherford's article in Nature, 20 August. Asks how much heat is generated by the firing of one gramme of cordite. They are all at their wits end about radium. "The hypothesis of evolution of an atom seems to me utterly wild and improbable." Sorry he cannot attend the B.A. at Southport. Would have liked to have heard the radium discussion. Has been working on his Baltimore Lectures; comments on this.

Lord Kelvin to [James] Dewar  DEWAR/DIIa(ii)/7  8 Sept 1903

3 pp

Contents:
Largs MS
Thanks Dewar for letter. Is enclosing copy of his contribution to Rutherford's discussion on radium. Has not gone into details about quantities of heat but has taken 10000 hours to show a quantity which he thinks would be far beyond any amount that could be got out of store in the atom. "This implies that I cannot agree to Rutherford's hypothesis."

Lord Kelvin to James Dewar  DEWAR/DIIa(ii)/8  4 Nov 1906

1 p

Contents:
Holmwood MS; postcard
Thanks Dewar for letter and reference to Nature. Sorry he cannot be at the R.I. tomorrow.

Lord Kelvin to [James] Dewar  DEWAR/DIIa(ii)/9  24 Nov 1906

1 p

Contents:
London typescript
Thanks Dewar for copy of Rutherford's letter of 10 November. The letter and Dewar's note to Nature helped him with article on "The formation of concrete matter from atomic origins". Asks if very great pressure, gradual or sudden, has ever been found to cause combination of hydrogen and oxygen mixed in the proportions for water. Comments on this and on an occasion when Andrews and Tait tried electrical decomposition of water in a sealed glass tube, by which they produced enormous pressure. Asks what would happen if liquid hydrogen is mixed with liquid oxygen and if liquid hydrocarbon gas is mixed with liquid oxygen. Is going to Glasgow on Monday, returning to London on Thursday. Hopes to be in the House of Lords for the Report stage of the Education Bill on Thursday evening.

Lord Kelvin to [James] Dewar  DEWAR/DIIa(ii)/10  undated

4 pp

Contents:
Aix [les Bains] MS
Delighted to receive Dewar's telegram and to see in The Times how good a beginning has been made by Dewar's Address. Finds it most interesting, including Arrhenius's "wild fancies". "But fantastic wildness is pardonable when solar sunspots and terrestrial auroras demand attempts to explain them and the connection between then and terrestrial magnetism." Makes two corrections to Dewar's address, one relating to Rumford and his (K's) "absolute method of temperature". A year or two later he gave another definition of absolute temperature, which has the advantage of agreeing approximately with the air thermometry. Hopes the Dewars are having a good time in Belfast.

Lord Kelvin to [James] Dewar  DEWAR/DIIa(ii)/11  undated

2¾ pp

Contents:
Half Moon St MS
Apologises for delay in thanking Dewar for answer to his question about solid carbonic acid. Asks if Dewar has tried how much the magnetic moment of magnetised steel bar changes when cooled in liquid air and allowed to rise again to ordinary temperature. Comments on method by which a quantitative experiment could be made. Result would be interesting in connection with electromagnetic theory. On Thursday they go to Glasgow and Largs.

File b: Correspondence - L  DEWAR/DIIb  1879-1920

[Joseph] Larmor to [James] Dewar  DEWAR/DIIb/1  30 Oct 1904

4 pp

Contents:
Cambridge MS
With reference to the concentration of gas on charcoal, the pressure will remain constant at constant temperature until the film on the charcoal covers its surface with a layer in "molecular continuity". When this concentration is reached, the affinity of the carbon will not be so strong and the gaseous pressure will rise. Discusses this and the extraction of gas from carbon.

[Joseph] Larmor to [James] Dewar  DEWAR/DIIb/2  3 July 1907

¾ p

Contents:
Cambridge typescript & MS
Has been reading Dewar's abstract. It was new to him that Dewar can deal with certainty with vacua of one fifty millionth of an atmosphere. Radiometer effect should be much less than the difference of the pressure, on the hot and cold sides of the disc, of gas at the actual density and at those temperatures. Discusses this. Light pressure should stand out when Dewar has abolished the gas with its radiometer pressures. At such vacua, damping of the vane hung by quartz thread would depend on the number of impacts of the residual molecule on it, and would give a means of counting them. Agrees the experiments should be repeated in the perfect vacua.

[Joseph] Larmor to [James] Dewar  DEWAR/DIIb/3  1 Feb 1910

4 pp

Contents:
Cambridge MS
Discusses Dewar's work on carbon disulphide.

[Joseph] Larmor to [James] Dewar  DEWAR/DIIb/4  11 Feb 1910

3½ pp

Contents:
Cambridge MS
Understands Abegg's Handbuch der Anorg. Chemie includes discussion of the equilibrium CS2 - C - S; comments on this. Read Dewar's new manuscript. Still hankers after Dewar's low temperature permitting CS to accumulate to a greater amount in equilibrium with the undecomposed material; comments on this. Assumes that the change of CS2 into elements is endothermic and that of CS back again would be exothermic; discusses this.

[Joseph] Larmor to [James] Dewar  DEWAR/DIIb/5  14 Feb 1910

2 pp

Contents:
Cambridge MS
Saw the CS2 affair at work. Believes it is the ultra violet light of the discharge that does it; comments on this. Is enclosing another copy of the Wilde Lecture affair; comments on this. Agrees it is more interesting to try for other radicals. Comments on polymerisation of gaseous CS2.

[Joseph] Larmor to [James] Dewar  DEWAR/DIIb/6  26 May 1913

3½ pp

Contents:
Cambridge MS
Dewar says that at 50° abs. the molecular specific heat follows the periodic curve. Has been looking again at the quanta hypothesis which the "imaginative young men" are trying to make fit the specific heat data; discusses this. It has not occured to thses people that the molecular heat is a property of atomic structure; comments on this. Asks if Dewar has data to test whether diamond specific heat varies by absolute temperature cubed up to 200° abs.

[Joseph] Larmor to [James] Dewar  DEWAR/DIIb/7  16 June 1913

3 pp

Contents:
Cambridge MS
Saw Soddy's account of the periodic law applied to radio-elements; comments on this. If it is right, the number of electrons in an atom determines its rank in the periodic table. Dewar said he did not have data to test which are below 200°absolute. Specific heat varies as rules of temperature. Observations at any two temps. would be enough; specific heat ought to be proportional for the two sets.
Note [by Dewar]: the theoretical inferences will be discussed when more accurate values of the atomic theory have been obtained. 1/3p, MS - added to MS copy of L's letter; 3pp, DEWAR/DIIb/8.

Henry Le Chatelier to [James Dewar]  DEWAR/DIIb/9  17 Jan 1913

½ p
Language:  French

Contents:
Paris typescript;
Thanks Dewar for Christmas greetings. Has not been well and has been in the south. Wishes he could visit England more often. Recalls visit to London when he met Sir William Siemens.

[James Dewar] to Henry Le Chatelier  DEWAR/DIIb/10  18 Aug 1913

1¾ pp

Contents:
Royal Institution typescript & MS
The curve he sent shows that, where there is near coincidence in the values of the specific heats and the atomic volumes, the unit volume specific heat is approximately constant; comments on this. He aims to repeat the work of Dulong and Petit, to tabulate the results and see if any general inference can be deduced. Has avoided theory further than going the length of periodicity, which he thinks is proved for the elements, and the close parallel, in many cases, with the atomic volume curve. Atomic heat is doubtless a function of the atomic value. The molecular heats of compounds will appear later. Asks if Le Chatelier could lend him some of Moissan's or his own products.

[Paul Émile] Lecoq de Boisbaudran to [James Dewar]  DEWAR/DIIb/11  11 July 1879

2 pp

Contents:
London MS
Suggests time when he might call on Dewar.

Joseph Lister to [James] Dewar  DEWAR/DIIb/12  21 Oct 1895

2 pp

Contents:
Portland Place MS
Although he is deeply indebted to Pasteur's research, his personal contact with Pasteur was limited. With regard to his own work, has always "felt an invincible repugnance to the idea of bringing it before a popular audience". Regrets he cannot do as Dewar wishes [?give Discourse]. Pleased Dewar's anxieties about his wife have been dispelled.

[Joseph] Lister to [James] Dewar  DEWAR/DIIb/13  9 Nov 1906

1 p

Contents:
Park Crescent, London MS
Congratulations Dewar on award of Matteucci Medal. Thanks him for remarkable lecture on "New low temperature phenomena".

G.D.Liveing to [James] Dewar  DEWAR/DIIb/14  6 Dec 1898

4 pp

Contents:
Cambridge MS
Examined the two tubes with the residues of air after freezing out with liquid hydrogen. Gives detailed findings. Compared the residual air spectrum with another hydrogen tube which had a trace of air in it and showed N bands in the indigo; comments on the observations.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/15  9 Dec 1898

2 pp

Contents:
Cambridge MS
Gives results of examination of the three tubes which Dewar sent. The most conspicuous part of the spectrum in all three is that of CO. Noticed the yellow line Dewar mentioned but has not measured it. Comments on the broad diffuse bands he noticed. Has not tried effect of a jar. The tubes are so far exhausted that the current passed very well inside. The CO might come from undecomposed sodium carbonate in the glass. Told Spivey to try some lead glass.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/16  12 Dec 1898

1¼ pp

Contents:
Cambridge MS
Wave length of the yellow line in tubes with residue of air cooled out by liquid H give [lambda] 5849. Comments on the fiducial lines. Cannot recognise the bands in the tube with the bulb of P2O5 left on; comments on this.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/17  13 Dec 1898

1½ pp

Contents:
Cambridge MS
Sorry to hear of the latest mishap with the hydrogen. Has looked at Baly's wave length of the neon line; can be no doubt of identity. Did not see in any of the three tubes, the other lines which Ramsay assigns to his neon. Ramsay used P to remove the excess of oxygen from neon. Possibility that the P2O5 used to dry Dewar's tubes might have some incompletely oxidised phosphorus in it which might have been left in the tube. Comments on method of drying tubes. The bands are not those of oxygen or nitrogen.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/18  20 Dec 1898

12/3 pp

Contents:
Cambridge MS
Has been looking at the tube Dewar sent. Besides the yellow helium line; saw a number of red lines but not the C line of hydrogen, several green lines and others in the blue and indigo. Discusses findings. Is not going to serve on the British Association Committee on celestial chemistry. Sorry to hear that Huggins and Crookes are unwell. Asks Dewar to send him an argon tube.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/19  21 Dec 1898

2 pp

Contents:
Cambridge MS
Has been examining the green lines in spectrum of tube Dewar sent. One of these has a wave-length of about 5300.5; discusses this and notes wave lengths of the other lines. The first line he could see was the helium yellow; comments on this which was very near Ba[lambda]5853. Will be interested to know whether the next tubes Dewar freezes out show helium. Uncertainty about what shows up in sparking the tubes. Dewar said he did not see helium or neon in the tube. Refers to death of Komthack.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/20  23 Dec 1898

2 pp

Contents:
Cambridge MS
Although Dewar has not secured the coronium line, it seemed that he had secured another new constituent of the atmosphere, so thought he would try to map the whole of the bright lines given by Dewar's tube. Gives details of findings. Always in the short time after the lines appeared, the continuous spectrum of the hot electrode showed up. Hopes Dewar will get other tubes showing the same spectrum. Has been using spectroscope with two prisms of 60 and two half prisms of 30 each and measuring with a micrometer eyepiece; comments on this. Tube proves that you cannot always the substances in the tube show up.

[G.D.Liveing] to [James] Dewar  DEWAR/DIIb/21  29 Dec 1898

2 pp

Contents:
Cambridge MS; incomplete
Two of the tubes have given way before he could determine much about them. Gives details of observations on the krypton tube, the tube L rd I-O and notes observations on the tube L rd O-II.

[G.D.Liveing] to [James Dewar]  DEWAR/DIIb/22  4th. Dec 1900

1 P

Contents:
MS
Gives details of rays observed in the spectrum of tube No.8, noting those which correspond to xenon rays as given by Erdmann.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/23  13 Dec 1900

1¼ pp

Contents:
Atheneum MS
Gives details of additional lines for tibe. They do not agree with Erdmann's xenon. Cannot find Erdmann's strong orange line in Dewar's tube.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/24  16 Dec 1900

1 p

Contents:
Cambridge MS
Thinks the tube Dewar sent as containing xenon, does contain some xeonon but mixed with something else. Gives approximate lengths of more lines and discusses these.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/25  18 March 1901

2½ pp

Contents:
Cambridge MS
Gives approximate wave lengths of most prominent green and blue rays emitted by the tubes filled with the volatile gases from liquid air last December. Comments on figures. Outlines initial observations on tube containing more volatile gases of air, which Heath sent him last week. Hopes to go to Hastings next week.
MS note of figures added [by Dewar]: 2/3P.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/26  8 Jan 1902

2 pp

Contents:
Cambridge MS
Has not yet looked at the tubes he received that morning. The channellings in the Ni(CO)4 flame are not new. They mentioned them in Royal Society paper in 1892 but then there appeared to be other lines in the citron and orange as well; comments on this. Is sending list of rays in spectrum of lightning photographed by Pickering. Does not know how Pickering determined the wave lengths. His hypothesis is that Pickering guessed the three hydrogen lines and found they fitted the scale of his instrument and deduced the other wave lengths; discusses this. Some of Pickering's lines are very near strong air lines, others near strong iron lines and the strongest rays may represent a triplet of strong Ca rays. Assumes course of the lightning is determined by the presence of dust in the air which may contain iron and calcium; the hydrogen may come from water drops. Remarkable that helium should appear but does not find any other element as likely to produce the ray [lambda]3881.
With list of wave lengths of lines in base of Ni(CO)4 and of strongest and nearest Fe arc lines and note of intensity of Fe lines: 1p MS; DEWAR/DIIb/27
List of E.Pickering's wave-lengths of rays in spectrum of lightning, 21 July 1901: 1p, MS; DEWAR/DIIb/28

G.D.Liveing to [James] Dewar  DEWAR/DIIb/29  14 Jan 1902

1 p

Contents:
Cambridge MS
Has photograph of one of the tubes with platinum electrodes apparently showing several ultra violet Ni lines; comments on this. Seems as if sparking entirely decomposed the carbonyl which would account for the disappearance of the channellings. Tubes are much brighter without a jar. New bands are a puzzle and cannot resolve them into lines. Would like more tubes with tubular platinum electrodes; drawback is that they show platinum lines. Two of the tubes with platinum wire electrodes which have been much sparked, still do not show hydrogen.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/30  6 July 1902

32/3 pp

Contents:
Cambridge MS
Has been reading Trowbridge's papers. Does not think they are clearly put but Trowbridge does raise some questions worth thinking about, in particular, the part played by electrolysis in gases made luminous by electric discharges. Discusses Trowbridge's reference to the "spectrum arising from the dissociation of water-vapour". Has no doubt that much of the difficulty of spectra of gas tubes arises from dissociation "but what is more we have no clue to the exact chemical composition of the molecules which are in vibration & set up the radiations we observe". Trowbridge's observations give grounds for the supposition that the solar and stellar radiations are largely due to electric discharges. Possible that clouds seen at great elevations are not of water or ice but of solid krypton and xenon. Electric discharges through such a cloud might give the krypton spectrum more brilliantly than those of more volatile gases. Asks if Dewar has any reason to think that krypton is much more abundant in the atmosphere than xenon.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/31  17 July 1902

4 pp

Contents:
Cambridge MS
Has read Trowbridge's papers again. Trowbridge has used very powerful currents but the effects are essentially the same as those obtained before. Discusses the spectra obtained by Trowbridge and comments on Trowbridge's belief that hydrogen is, at high exhaustion, a perfect insulator. Discusses Trowbridge's experiments, described in the Phil. Mag., in which he obtained metallic sodium by his current out of the glass, and as a consequence some lines of the argon spectrum. In Trowbridge's photographs of the spectra of his tubes there is, besides the bright lines, a faint continuous spectrum. With dark and bright lines. Trowbridge argues that silver salts have a selective absorption in consequence of which these spaces are left dark in the continuous spectrum. Discusses this idea. Comments on Trowbridge's electrolytic theory of the conduction of the current in gases. Has long thought that all light is the result of electricity and that heat only produces it indirectly; comments on this. Trowbridge gives useful warning by pointing out that they cannot be sure the line-spectrum of carbon arises from the carbon molecules themselves.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/32  30 July 1902

5 pp

Contents:
Cambridge MS
Humphreys' coincidences with metallic lines are just the Fraunhofer lines nearest to the lines he photographed. No proof that Humphreys' bright lines are the prolongations into the corona of the Fraunhofer lines. In Rowlands' table the identity of the Fraunhofer lines with rays of scandium, yttrium etc have not been proved; comments on this. Humphreys puts hydrogen and helium in his list although there are no Fraunhofer lines which correspond to helium. Humphreys does not mention corona in his paper; discusses this and Humphreys' references to prominences and to the chromosphere. Discusses Humphreys' paper, in particular the Tables. No guidance as to probable limits of error in Humphreys' wavelengths; comments on this. Comments on the statement by Humphreys that he could not distinguish the two lines [lambda] 3388 and [lambda] 3456.5 from the Ti lines by measurement.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/33  31 July 1902

2 pp

Contents:
Cambridge MS
On further consideration has concluded that the lines in Humphreys' list must, if taken collectively, be called coronal and chromospheric lines. Discusses this. Humphreys puts down a hydrogen line wherever he can without regard to Rowlands' list. Thinks Humphreys is right but it makes other identifications in his list doubtful. Humphreys thinks that the Fraunhofer lines are true reversals of gaseous bright lines in the upper atmosphere of the sun. He [GDL] concludes that "the boundary between chromosphere is not so definite as Young imagined".

G.D.Liveing to [James] Dewar  DEWAR/DIIb/34  1 Aug 1902

4 pp

Contents:
Cambridge MS
Thanks Dewar for references to Pickering's meteoric rays. Thinks the first two lines in Pickering's list are helium rather than hydrogen; discusses this. Thinks Dewar's statement about the atmosphere needs amendment to make it easily understood by the audience. Must study Arrhenius' hypothesis more closely before he can say whether Dewar should mention it. Finds it difficult to believe that comets part with the matter which produces the tail; if they did "how could they repeat the emission at every perihelion with little or no reduction of effect?" Bryan's calculation is doubtless correct but does not think this affects the result. Bryan does not define the limit of the earth's atmosphere. Only limit he can imagine is "a sphere concentric with the earth and so distant that as many molecules of air cross its surface from without to within as cross it in the same time in the reverse way"; discusses this and the hypothesis that the solar system has reached its present phase by condensation from a gaseous mass. Bryan's calculation will not let them believe there is no gas in interplanetary space; some must escape from the atmosphere continually and this must go on until the equilibrium of give and take is reached.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/35  3 Aug 1902

4 pp

Contents:
Cambridge MS
Has made a few amendments to Dewar's statement about the atmosphere; comments on this. Discusses Pickering's auroral photographs. Has been thinking about Arrhenius' theory of comets; cannot see how any hydrocarbon is to be metamorphosed by heat in the way supposed. Metamosphosis is explicable if they bear in mind that temperature of residue of gas in interplanetary space is not that which a solid placed in it will acquire from the solar radiation; discusses this. Arrhenius, as interpreted by Cox, seems to think the lighter hydrocarbons are decomposed by heat as they approach the sun; Hahn ridicules this when the approach is not so near as that of the earth to the sun. Heat will not do it but radiant energy will set the hydrocarbons vibrating; vibration may be violent enough to separate some of the hydrogen and leave a hydrocarbon of lower boiling point which will condense in drops. Must look at Arrhenius' own statement. Difficult to see how a comet which has repeatedly come near the sun, can reacquire hydrocarbons; discusses this.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/36  4 Aug 1902

4 pp

Contents:
Cambridge MS
Has read Arrhenius' original paper on comets and finds he would have saved "much exercise of the imagination if I had begun by reading it". Quotes from paper. Arrhenius' theory seems open to Halm's criticism that when a comet does not approach the sun any nearer than the earth, the heat cannot be great enough to decompose the hydrocarbons. He thinks the solid constituents of the comet absorb the radiant energy and become hot enough to expel the more volatile hydrocarbons, yet those vapours will not be further heated to any sensible extent because the radiant energy will not be absorbed in the gaseous state. Discusses this. and the formation of drops of liquid as required by Arrhenius' theory. Arrhenius gives no indication why in some comets drops of one size predominate, in others two sizes and in one comet up to five sizes, giving many tails; comments on this. Discusses Arrhenius' theory of the electrical phenomena of auroras. Thinks Arrhenius' theory of comets is interedting and that condensation of the vapour emitted under the action of solar radiation is possible, but this is the consequence not of heat but rather of the cold in the interplanetary space.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/37  5 Aug 1902

4 pp

Contents:
Cambridge MS
Humphreys' film IV was exposed for two minutes in the middle of totality and about covered the chromosphere. Spectrum photographed must have been essentially that of the corona. Does not appear to be any real distinction between the chromosphere and corona, except that part of the sun's atmosphere which is brightly luminous is called chromosphere. Discusses the spectrum photographed. The flash looks as if it were the outcome of anomalous dispersion; same cause must affect rays received from the chromosphere. Comments on this. They need more accurate measurements of the wave-lengths of the gases. Would be useful to have tubes of Jena glass filled with the gases; comments on this.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/38  9 Dec 1904

4 pp

Contents:
Cambridge MS
Gives details of examination of two tubes, one of which contained hydrogen and krypton and the other, Hydrogen but showed no strong xenon lines.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/39  2 Jan 1905

2 pp

Contents:
Cambridge MS
Krypton tube shows krypton and hydrogen but no argon. The xenon tube shows xenon and hydrogen but he has not detected argon; comments on this. Xenon is brightened by introducing a jar into the circuit; comments on this. Method of separation is satisfactory and Dewar seems to be able to get rid of the hydrocarbons better than before.
Note added [by Dewar] about separation of gases: 1/8p, MS.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/40  4 Jan 1905

2 pp

Contents:
Cambridge MS
Has been looking at the tubes he received yesterday. Krypton tube shows principal lines of krypton and the hydrogen lines C and F; comments on this. Does not see any argon or xenon. Xenon tube is so exhausted that it is very fluorescent; comments on lines of hydrogen and xenon he can see with and without a jar. Suspects it is not quite the same evaporating the liquid air from the charcoal as allowing the charcoal to select the most easily condensed as allowing the charcoal to select the most easily condensed gases from the air. The evaporation must be very slow if krypton and xenon are not to be carried away with the more volatile gases.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/41  11 Dec 1906

5¼ pp

Contents:
Cambridge MS
Gives details of examination ot two tubes, both of which give strong Ne and He lines. Comments on other neon tubes which he examined. Cannot satisfy himself that the green lines are due to a different element from that which gives the yellow and red lines

G.D.Liveing to [James] Dewar  DEWAR/DIIb/42  13 Dec 1906

3¾ pp

Contents:
Cambridge MS
Has tried in vain to see Dewar's new neon line at 7415. Lowest he sees is at [lambda]7247. Comments on this and on the green lines found in both the old and new tubes. Will try to get photographs.

G.D.Liveing to James Dewar  DEWAR/DIIb/43  6 Jan 1907

4 pp

Contents:
Cambridge MS
Measurements of the three new lines of neon are [lambda]7442.4, 7494.2 and 7546.8; discusses these. The photographs show many green lines which Baly has not recorded; comments on this. Wants to see whether any of the lines follow the vagaries of the strong neon lines [lambda]5330, 5341 and 5400 and whether they can differentiate between any groups of lines by taking successive fraction of the condensed gas. Needs a long series of fractions taken in succession from a large volume of air; comments on this. The original neon tube shows everything he has noticed in the new tubes. Wants a fractionated gas like it. If it is a mixture, does not see how the gases of which it is composed can be separated other than by such a fractionation. May detect the mixture by gradual disappearance of some of the lines even if complete separation is not possible.

G.D.Liveing to James Dewar  DEWAR/DIIb/44  6 Feb 1907

3¼ 4pp

Contents:
Cambridge MS
After examining the neon tubes, seems to be on the track of something not described before. Somr tubes give a number of blue lines which are absent from other neon tubes; discusses these. There are strong argon lines at [lambda]4201, 4198, 4191 and 4159. Will compare the tubes with an argon tube to check the identity.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/45  11 Aug 1908

4½ pp

Contents:
Cambridge MS
Has read Rutherford's paper and compared his wave lengths of emanation spectrum with their xenon lines. Discusses this comparing their wave lengths also with Baly's. Looked at the one xenon tube which was black about the electrodes. After sparking for a minute, the xenon spectrum grew weaker and yellow sodium came out very strongly; comments on this.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/46  17 Dec 1908

4 pp

Contents:
Cambridge MS
Could not call on Dewar on Tuesday. Has now been able to examine the plate; comments on the bands observed. Could not see whether the bands had a definite end at the top; comments on this. If the band he glimpsed in the ultra-red is really there, it would go against the idea that the bands were a spectrum of something luminous for it is about as far below [lambda]6678 as [lambda]6678 is below [lambda]5876. Should like to know what comes out with a wider slit.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/47  23 Dec 1908

4 pp

Contents:
Cambridge MS
Thanks Dewar for plates. Continuous spectrum from solid Ra is stronger in the first plate; comments on this. Band on the first Ra plate in the low red is not so low as the potassium line. Cannot say where these bands end; comments on this. Remarks on the clouding of his vision. Will send the plates to Dewar for him to see if he can find a definite limit at each end of the bands. As the continuous spectrum on Dewar's last plate is so strong, it seems unlikely that the light from the gas above the solid Ra should have been focussed off the slit. Thanks Dewar and his wife for their Christmas greetings.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/48  21 Nov 1909

31/3 pp

Contents:
Cambridge MS
Is not surprised Dewar finds the constant travelling to lecture at Cambridge is too much. Fears it has contributed to the breakdown of Dewar's health, so "I do not find it in my heart to say anything against your relinquishing it". Chemical Department is going on well; any change must be done with the least friction. If an outsider were brought in, it would have to be someone of exceptional character as well as of sufficient scientific merit. Only one person on present staff, Jones, could succeed Dewar "without much disturbance of the machine"; comments on this. Refers to Miss Dickson's engagement.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/49  25 Nov 1909

32/3 pp

Contents:
Cambridge MS
Not surprised that Dewar distrusts the present Vice-Chancellor; "he always seems to me rather emotional than strong". They expect Scott to become Vice-Chancellor on 1st October, so Dewar need only wait until then to resign. Dewar's results on action of ultra violet radiant energy on liquid air are very interesting. Temperature may affect stability of molecules formed endothermically, but is not likely directly to affect their production by radiant energy. Comments on formation of ozone without any oxide of nitrogen. Comments on the change due to stress, which may be unstable. Changes involved in forming oxides of nitrogen may not be such as would relieve the stress. Improbable that radiant energy can be absorbed without electric disturbance among the molecules.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/50  7 Feb 1910

2½ pp

Contents:
Cambridge MS
Dewar was mistaken in thinking he saw him [GDL] pass his house that morning. It must have been "Smythe of Jesus"; comments on his "double". Dewar's account of the (CS)4 is very interesting. Comments on explosive character of the compound formed by condensing the CS2 vapour after submitting it to electrode-less discharge. Flash of light is interesting because the temperature cannot have been very high.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/51  22 Feb 1910

3¼ pp

Contents:
Cambridge MS
Thanks Dewar for drawing his attention to abstract of paper by Dewar and Jones in the engineering supplement of the Times. "It is a long business now to find out what the Time contains that is worth reading". Error about temperature of products of decomposition of detonated CSsub2; was due to his having forgotten amount of energy needed to form the compound. Explosive compound obtained from SOCl2 may be S3; comments on this. In view of the quiet way in which CS2 vapour dissociates as the temperature gradually rises, one would imagine little heat would be disengaged in the process; comments on this.

G.D. Liveing to [James] Dewar  DEWAR/DIIb/52  22 Sept 1913

4 pp

Contents:
Cambridge MS
Acknowledges letter. Pleased Dewar has found a place "where trippers do not congregate" and that the holiday has done him good. Has not followed activities of the British Association and read only the abstract of the President's Address. Cannot get over the illogical reasoning in "Survival of Man" and has so far dropped behind that cannot judge the newest advances. Had not seen letter in Nature about helium giving the hydrogen lines. Hardly looks at Nature because it has so many book reviews that it takes a long time to find what he wants to read, just as he misses articles in the Times "which are buried in advertisements". With regard to helium giving hydrogen lines, comments on their attempts to photograph the long series of ultra violet lines which Huggins found reversed in the spectra of white stars. Is enclosing photograph of one of them; comments on this spectrum on which he has marked some helium lines With regard to Soddy's atomic weights, must remember that atomic weights are averages and so are spectral lines. Cannot measure mass directly; comments on this. Spectral lines must depend on structure; "this may differ without different mass, or may be similar without equality of mass".
With spectrum: DEWAR/DIIb/53

G.D.Liveing to [James] Dewar  DEWAR/DIIb/54  28 Sept 1913

2½ pp

Contents:
Cambridge MS
Quotes extracts from papers by him and Dewar in which reference is made to spectra showing lines of hydrogen, helium and neon. Asks if he should draw the attention of Evans or Fowler to these papers.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/55  5 March 1916

2 pp

Contents:
Cambridge MS
Thanks Dewar for letting him see letter from Hales. Thanks him for abstract of Friday evening discourse and for letter. Reaching of a state of equilibrium in a soap bubble when the black area has reached its maximum must be a mobile affair when thickening and thinning just neutralize each other; discusses this. Have been discussing temporary changes in College statutes to meet War emergencies. Empty college rooms are occupied by soldiers. Government is to close the prison temporarily; comments on this. Sorry Dewar has caught cold by working in a cold laboratory. "The was drives everyone to do what otherwise they would not do."

G.D.Liveing to [James] Dewar  DEWAR/DIIb/56  7 March 1916

12/3 pp

Contents:
Cambridge MS
Thanks Dewar for sending Arrhenius' letter. With regard to the bubbles, thinks the drainage can only take place from the liquid between the two skins of the film; discusses this. Black area should diminish gradually. If the film at the top of the bubble is able to sustain the weight of the whole when that part of the film has ceased to drain, bubble will nor break by its own weight when drainage stops as long as it is homogeneous throughout.
Thinks considerable distortion is possible without breaking.
"The quantity of water which a soap bubble will carry in the drop at its bottom must be many times greater than the weight of the film itself.." Sorry to hear of Ramsay's illness.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/57  17 March 1916

1¼ pp

Contents:
Cambridge MS
Thanks Dewar for letting him see Egoroff's letter. Refers to Egoroff's visit twenty five years ago. Draws attention to review of paper in Cambridge Review. Is in good company if his views about bubbles are substantially the same as those of Willard Gibbs. Comments on Dewar's black bubble with a clear drop at bottom.
Behaviour of 16cm bubble is what he thought would be normal.
Dewar's plan to gradually remove part of the drop will show how much depends on the size of the drop.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/58  7 Nov 1920

2 pp

Contents:
Cambridge MS
Has been delayed in completing note on field of gravitation by statement in books that no theory of gravitation by radiant energy, moving no quicker than light, could give rise to the planetary orbits as observed; discusses this. and his view that the energy of gravitation lies in the field not in the bodies gravitating.

G.D.Liveing to [James] Dewar  DEWAR/DIIb/59  17 Nov 1920

2 pp

Contents:
Cambridge MS
Has sent his note on gravitation to the Royal [Society]. Is trying to devise an experimental proof od the omnipresent radiant energy. Thinks he must try to concentrate it by means of a leaden lens; discusses lens required.

The Century Magazine (R.U. Johnson) to James Dewar  DEWAR/DIIb/60  23 Aug 1900

2/3 p

Contents:
New York typescript
Acknowledges letter. Pleased for Dewar to write a popular article on low temperatures; comments on this.
With article: 24½, typescript; DEWAR/DIIb/61

[James Dewar]  DEWAR/DIIb/62  undated

18½ pp

Contents:
MS
Address to the British Association about low temperatures.

File C: Correspondence - m  DEWAR/DIIC  1874-1921

[John G. McKendrick] to [James] Dewar  DEWAR/DIIC/1  30 Jan 1892

4 pp

Contents:
Glasgow MS
Tubes containing meat etc. were kept for twenty days at a temperature of about 80° F. Plans to examine them microscopically. Outwardly, the frozen tubes look fresher than the others.
Results of the seeds are striking in a negative way. Gives details of experiment with cooled and uncooled seeds. All the seeds have sprouted; gives details. Low temperature has not killed dry seeds. Asks if Dewar plans to report the results to the Royal Society. After communication has been made to the R.S., he could show the seed boxes at the Philosophical Society.

John G.McKendrick to [James] Dewar  DEWAR/DIIC/2  31 Jan 1892

6 pp

Contents:
Glasgow MS
Has examined the tubes contining meat etc. and without exception they were crowded with bacteria. Could not distinguish between cooled and uncooled. Cannot sterilize by cold lasting for the time of those experiments; doubts whether result would be different if experiment were carried on Longer. Possible that at a certain low temperature activity ceases; comments on this and on effect of freezing on structure of spore or seed. If separation of water does not tear the seed to pieces, no harm will be done. Might repeat experiments with seeds which have been soaked for some time in water. This would settle question of dryness being one of conditions of resistance. "This view of the matter has an important practical bearing on the sowing of seeds in autumn." Has been much discussion about sowing of winter wheat and how the seeds resist the cold. Thinks it would be affected by amount of moisture in the ground before the frost comes. Suggests giving seeds paraffin coating, soaking in water and freezing them, then comparing these with seeds without the coating but weakened in water and frozen. Asks if Dewar would like some tubes containing active developing bacteria; comments on this.

John G.McKendrick to [James] Dewar  DEWAR/DIIC/3  8 July 1909

4 pp

Contents:
Stonehaven MS
Interested in Dewar's letter. Would have to be sure that exposure to -185°C alone will not kill off B. proclifiosus without the addition of ultra-violet rays. All forms of bacteria do not have the same resisting power to very low temperature. Could not kill the bacteria of ordinary putrefaction by the cold of liquid air; comments on this and on effect of ultra-violet rays on bacteria. Thinks that in arrested bacteria there is not an absolute stoppage of all the molecular machinery of life; discusses this. Would like to know how Dewar succeeds with B.termo. Outlines his own experiments on this.

[John G.McKendrick] to [James] Dewar  DEWAR/DIIC/4  10 July 1909

3 pp

Contents:
Stonehaven MS
Dewar's experiments are interesting and conclusive. Use of phosphorescent organisms seems an admirable test. Important to try effect of ultra violet rays and -185°C on some pathogenic organisms; Comments on this. Refers to use of ultra-violet rays in treatment of leprosy. "How can ultra-violet rays, at the low temp., just do what is necessary to destroy the molecular phenomena of life?" Cannot think of a physical explanation. May be some molecules in which motion is not quite stopped by the low temperature but would imagine ultra violet vibrations would stir up motion rather than arrest it; discusses this.

J.C.McLennan to James Dewar  DEWAR/DIIC/5  23 July 1921

2 pp

Contents:
Woolacombe Bay typescript copy
Thanks Dewar for note. Did not keep note to Onnes. In it, he said experiments were being done in Toronto to try to liquefy helium; comments on this. Visited Onnes in 1919 when Onnes suggested that he, McLennan, take what helium he had to Leiden for them to work on it together. Told Onnes this would not be possible as his stocks of helium were allotted for experiments in connection with aircraft work. Onnes would like his laboratory to receive international recognition. Will probably liquefy helium in Washington soon. Dewar is in a position to liquefy helium and use it. In Toronto 32,000 Dollars has been raised for cryogenic work. With "probably four cryogenic laboratories in sight there would be some difficulty in making one in particular an international one". Had hoped the programme of work projected and partly carried out in Toronto might have been done in England as a sequel to Dewar's work but this did not seem practicable, so he chose to go ahead at Toronto. This will probably preclude him from accepting Onnes' view that the Leiden laboratory should be "internationalised". Would welcome Dewar's views on the points raised by Onnes.

[James Dewar] to J.C.McLennan  DEWAR/DIIC/6  28 July 1921

2 pp

Contents:
Typescript
Congratulates McLennan on raising so much money for low temperature research at Toronto. After such a benefaction, McLennan is bound to carry out his own plans, as suggested in 1920 Chemical Society lecture. Supports McLennan's call for "the maintenance of a cryogenic laboratory within the Empire". Idea of internationalising such research at one university in Holland would be bad for the progress of original research; comments on this, referring to the "megalomania" dominating low temperature laboratories. Cannot understand how McLennan "could entertain the notion that I might be an Internationalist instead of an Individualist.." Does not understand remarks about linking up with the Royal Institution; is not aware that any helium was offered. Comments on this. Is not acquainted with Kamerlingh Onnes and has not visited his laboratory. To be a member of the I.I.d.F. "would seem to be interpreted as if this organisation was controlled solely by the opinion of Professor Onnes".

J.C.McLennan to James [Dewar]  DEWAR/DIIC/7  29 July 1921

2¼ pp

Contents:
Woolacombe typescript copy
Acknowledges letter. In 1917 as soon as it was clear that the Admiralty wanted to continue the helium work in Canada, he went to Dewar to see if the Royal Institution could provide facilities for experiments on the high purification of supplies of helium sent from Canada. Dewar thought the idea impracticable. Comments on this. He had practically to build a special laboratory for his work in London. That laboratory might have been linked with the Royal Institution but was abandoned when he left London in September 1919. When in London, he was closely associated with Rutherford and other Cambridge men and sent them spare helium when he left. Also sent helium to Strutt. Understands some of the Cambridge helium was given to Dewar. Need to decide whether to maintain the supply station at Calgary. If considerable supplies of helium could be used at the Royal Institution, the supply station could be linked up with the R.I. If no action is taken, the station will probably be dismantled; comments on this. Nothing has been done to link the Canadian effort with existing or projected activities in Britain. Is ready to cooperate in any feasible scheme. It may be said that there is no need for a considerable supply of helium; comments on this.

[James Dewar] to J.C.McLennan  DEWAR/DIIC/8  3 Aug 1921

1¾ pp

Contents:
Typescript
Does not understand why McLennan should express disappointment at results of their interview in 1917. Royal Institution proffered its aid to the Government in war. These resolutions were conveyed to the First Lord of the Admiralty and brought to McLennan's attention at their meeting. In 1917-19 there was litigation about his patent rights and the Government opposed the validity of his invention. McLennan "as Scientific Adviser to the British Admiralty, could not avoid being covertly in agreement with their policy". His name was not mentioned in the Report on sources of helium in the British Empire made in Canada in 1916. Does not understand why McClennan should now allege there was loss of benefits to the Royal Institution by not linking up with Canadian activities. McLennan claims to have built laboratory in London; he never heard of such a laboratory from McClennan or from other Cambridge men. The helium he obtained from Cambridge was not for use in its liquefaction, which he abandoned after his accident and illness in 1905, but to blow a soap bubble with.

J.C.McClennan to James Dewar  DEWAR/DIIC/9  8 Aug 1921

11/3 pp

Contents:
London, typescript
The report on sources of helium in the British Empire was a reprint of reports made by him and his associates to the British Admiralty on their special investigations; comments on this. In his capacity as Scientific Adviser to the British Admiralty, he never received any communication or request for action indicating that litigation had been started with regard to Dewar's Patent rights, or that the Government had any policy with regard to such litigation. Only information he had on the subject was received directly from Dewar. On basis of that information thinks it is disheartening that Dewar has "been so ungenerously treated and so inadequately rewarded for your great inventions".

[James Dewar] to J.C.McClennan  DEWAR/DIIC/10  9 Aug 1921

1 p

Contents:
Typescript
Acknowledges letter. McClennan has neglected to remove "the question of a breach of faith by one or other of us" and it is therfore impossible to clarify the scientific points in dispute. Draws attention to his statement concerning McClennan's special laboratory in London; further discussion of the scientific side-issues impossible until McClennan withdraws or provides proof that he, Dewar, is wrong.

J.C.McClennan to James Dewar  DEWAR/DIIC/11  10 Aug 1921

½ p

Contents:
London, typescript copy
Regrets use of words "as you know" and feels he should have used the expression "as you possibly know"; comments on this.

[James Dewar] to J.C.McClennan  DEWAR/DIIC/12  11 Aug 1921

1¼ p

Contents:
Typescript
McClennan has evaded the real issue. The "as you know" phrase is not the crux of the problem. McClennan suggests that he, Dewar, knew McClennan built a special laboratory for his helium work in London; comments on this.

[J.C.G.] Marignac to James Dewar  DEWAR/DIIC/13  8 May 1874

2¾ pp
Language:  French

Contents:
Geneva MS;
Testimonial for Dewar in connection with his application for Chair of Chemistry at University of Glasgow.

E.Mathias to [James Dewar]  DEWAR/DIIC/14  28 June 1897

2 pp
Language:  French

Contents:
Toulouse MS;
Thanks Dewar for papers on the dielectric constants of ice and alcohol and on the electrical resistivity of electrolytic bismuth. Discusses Dewar's work on the liquefaction of hydrogen. Is greatful to Dewar and to Professor Fleemong [?Fleming] for being willing to continue their scientific relationship. Is sending papers on the calorimetric study of saturated liquids.

[James] Dewar  DEWAR/DIIC/15  [ca. 1900]

7 pp

Contents:
Typescript with added MS notes
Maxim v. Anderson. Data and observations prepared by Dewar giving results of experiments with which Counsel should be acquainted in connection with the Maxim case; compares Maxim powder and cordite.

J. Clerk Maxwell  DEWAR/DIIC/16  25 April 1874

2 pp

Contents:
Cambridge MS
Testimonial for Dewar in connection with Chair at University of Glasgow.

R.Meldola to [James] Dewar  DEWAR/DIIC/17  13 June 1906

3¼ pp

Contents:
Technical College, Finsbury MS
They are aiming to make a big splash about the Coal Tar Colour Jubilee celebration. All the European countries of importance are co-operating. Only American is running an "independent show"; discusses this. Lists foreign chemists who are being invited to attend celebration. Asks Dewar if he could persuade Korner to attend. Celebrations will be on 26th and 27th July. Is trying to get the Prince of Wales to come to the dinner on 26th.

Henri Moissan to [James Dewar]  DEWAR/DIIC/18  19 May 1897

2¾ pp
Language:  French

Contents:
Paris MS;
Outlines arrangements for visit to London. Comments on proposed experiment on liquefaction of fluorine. Would like to see Dewar's experiments on liquefaction of air. Asks if Dewar has some methyl chloride. Comments on current needed for their electrolysis. Asks to be remembered to Lord Kelvin.

Henri Moissan to [James Dewar]  DEWAR/DIIC/19  3 June 1897

3½ pp
Language:  French

Contents:
Paris MS;
Presented work on liquefaction of fluorine to the Academy of Sciences; comments on this. Benefitted from talking to Dewar about his work on liquid air. Thanks Dewar for notes. Has sent him proof of paper. Comments on his assistant's planned return to London. Comments on the compound obtained by detonation. Conveys his wife's good wishes to Mrs Dewar.

Henri Moissan to [James Dewar]  DEWAR/DIIC/20  18 June 1897

2¼ pp
Language:  French

Contents:
Paris MS;
His colleague, Mr Troost, would like to see Dewar's experiments on the liquefaction of air. Comments on Troost's proposed visit to London. Thinks it would be wise to prepare the fluorine apparatus overnight or to keep it set up for several days.

Henri Moissan to [James Dewar]  DEWAR/DIIC/21  2 July 1897

3 pp
Language:  French

Contents:
Paris MS;
Asks if Mr Lebeau might return to London next week. Fluorine attacks sulphuric acid. Comments on this and on plan to use a mercury pressure-gauge in these experiments. Hopes Dewar has recovered from Jubilee festivities. Refers to Mr Troost's visit.

Henri Moissan to [James Dewar]  DEWAR/DIIC/22  27 July 1897

2¼ pp
Language:  French

Contents:
Paris MS;
Mr Lebeau is impatient to leave for London; comments on this. Believes the best thing for absorbing fluorine gas is iron reduced by hydrogen; comments on this.

Henri Moissan to [James Dewar]  DEWAR/DIIC/23  [ca. Aug 1897]

4 pp
Language:  French

Contents:
[Paris] MS;
Thanks Dewar for letter. Has spoken to Lebeau about the liquid fluorine experiences. Pleased hydrogen still combines with liquid fluorine. "Les physiciens experaient avoir tue la chimie a -200° mais les chimistes savent encore trouver des corps qui veulent se combiner." Suggests waiting to present the results; comments on this. Will send results to Dewar. Asks if Dewar has any new figures or details for him. Comments on the oxidized compound from fluorine.

Henri Moissan to [James Dewar]  DEWAR/DIIC/24  11 Oct 1897

4 pp
Language:  French

Contents:
Paris MS;
Thanks Dewar for letter. Merlaus' copper apparatus is not superior to their apparatus. Merlaus will present paper at the Congress of Torento. Presented second paper on the liquefaction of fluorine to the Academy; comments on this and on proposed papers. Asks if Dewar would write paper on his liquid air experiments which are not sufficiently known in France; comments on this. Asks to be remembered to Lord Kelvin and sends his respects to Mrs Dewar.

Henri Moissan to [James Dewar]  DEWAR/DIIC/25  29 Oct 1897

3½ pp
Language:  French

Contents:
Paris MS;
Discusses work on the solidification of fluorine. Comments on paper for Annales de Chimie. If Dewar's work on liquid hydrogen is progressing well, would be pleased to publish it in France at same time as Dewar publishes in London. Is preparing experiments on reactions of fluorine to-100; comments on this.

Henri Moissan to [James Dewar]  DEWAR/DIIC/26  29 Jan 1898

4 pp
Language:  French

Contents:
Paris MS;
Has received notice of his nomination for membership of the Chemical Society of London. Thanks Dewar for note. Comments on his ill-health. Comments on the progress of his research; has taken up fluorine work again. Comments on possibility of submitting paper on liquefaction to Annales de Chimie. Asks if Dewar has new results on hydrogen.

Henri Moissan to [James Dewar]  DEWAR/DIIC/27  21 May 1902

3¼ pp
Language:  French

Contents:
Paris MS;
Received Dewar's news of Mond. Pleased Mrs Dewar is better. Refers to planned holiday in Italy. Asks if Dewar is continuing his research on hydrogen. Comments on his work on fluorine. Refers to work on crystalline hydrides of potassium and sodium.

File d: Correspondence - N  DEWAR/DIId  1883-1916

S.Newcomb to James Dewar  DEWAR/DIId/1  10 Jan 1901

2 pp

Contents:
Washington MS
Thanks Dewar for copy of centenary lecture. It shows possibility of solving one of the great problems of physics, that of the absolute radiation of the black body; comments on this.

Ludwig Nobel to James Dewar  DEWAR/DIId/2  17 Nov 1883

4 pp

Contents:
MS; copy
Refers to Dewar's questions about the quantities and inexhaustibility of the petroleum deposits of the Caucasus. Discusses the resources of the Baku district. Has fullest confidence in the continuity of the Baku supply. Production at Baku at present is one sixth of the American yield and all evidence suggests that the Caucasus is much richer in oil than America. Russian mineral oil must occupy a most important position in the world markets.

[Henry George Percy, 7th Duke of] Northumberland to Lady Dewar  DEWAR/DIId/3  18 Feb 1909

¾ p

Contents:
Grosvenor Place MS
Acknowledges letter. Will be pleased to accept her hospitality.

[Henry George Percy, 7th Duke of] Northumberland to James [Dewar]  DEWAR/DIId/4  21 June 1916

1½ pp

Contents:
Alnwick Castle MS
Acknowledges letters. Has been staying with his brother, who has lost his only son in the Queen Mary. Hopes to attend Managers' Meeting in July but is not sure if he will be able to leave the North.
With typescript copy; ½p; DEWAR/DIId/5

[James Dewar] to Duke of Northumberland  DEWAR/DIId/6  29 June 1916

1 p

Contents:
Typescript
Expresses sympathy on bereavement. Is enclosing letter from Robert Mond "which I feel will remove a Blot on the excutcheon of the Davy Faraday Laboratory Deed of Trust". Approached the Trustees on the subject and they have met his wishes in a satisfactory way. Stability of the R.I. will be improved as the revenue of the Trust will be increased by nearly £1000 a year.

[Henry George Percy, 7th Duke of] Northumberland to James [Dewar]  DEWAR/DIId/7  30 June 1916

½ p

Contents:
Alnwick Castle typescript
Thanks Dewar for letter of sympathy. Thanks him for copy of Mond's letter, which is very satisfactory. Imagines the increased income of the [Davy Faraday] Laboratory will only be temporary, as interest will be lower after the war.

[James Dewar] to Duke of Northumberland  DEWAR/DIId/8  1 July 1916

1¼ pp

Contents:
Typescript
Agrees with the Duke about income. Could only press Mrs Mond for an assurance during his, Dewar's, life, that the Trustees of her late husband were taking precautions to pay the capital sum due to the Managers of the R.I. concerning the Davy Faraday Laboratory. Cost of chemicals and scientific instruments will increase; comments on this. Made the point to Mrs Mond that the Trust "and at any rate her Sons, at the present time, were making double or triple the Income that her late husband ever made".

[Henry George Percy, 7th Duke of] Northumberland to James Dewar  DEWAR/DIId/9  3 July 1916

1/3 p

Contents:
Alnwick Castle typescript
Dewar has done admirable service to the [Royal] Institution in approaching Mrs Mond. Only people not making money at present are those with fixed incomes and landed proprietors.

File e: Correspondence - O  DEWAR/DIIe  1873-1922

H. Kamerlingh Onnes to [James Dewar]  DEWAR/DIIe/1  18 July 1895

6 pp

Contents:
Leiden MS
Is sending copies of laboratory papers. Greatly admires Dewar's work. Has shown the blue liquid to many friends; comments on this and on demonstrations with liquid oxygen and Dewar's vacuum vessels. Thinks Dewar's vacuum glass is the greatest advance in low temperature work since 1883. Discusses his use of the vacuum for lessening convection and comments on the construction of his boiling glass and case. Is sorry his work advances so slowly but hopes it might be of interest to foreign scientists. Hopes to have an opportunity of visiting London and meeting Dewar.

[James Dewar] to [H.Kamerlingh] Onnes  DEWAR/DIIe/2  20 July 1895

8 pp

Contents:
Royal Institution MS
Professor Fleming told him about Onnes' paper; comments on this. "It is only those persons who know the worries and troubles of low temperature research that can appreciate properly all you have done." Such work requires a long apprenticeship. "The average scientific man thinks it is all plain sailing.."; comments on this. Discusses his 1886 apparatus for liquefaction of gases and the apparatus he described in 1890. Comments on explosion which occurred when he was discharging liquid oxygen into the exhausted tube, which stopped the work until 1889. Approach of the Faraday Centenary led him to construct the complicated plant described in the lecture on Faraday's chemical work; comments on this. "The fact is I never learnt anything in the way of manipulation of liquid gases from Prof Olszewski." Is sending paper. In the present condition of low temperature discussion, has felt it proper to decline allowing even Pictet to inspect his laboratory; comments on this.

H.Kammerlingh Onnes to [James Dewar]  DEWAR/DIIe/3  6 March 1896

2½ pp

Contents:
Leiden MS
Has not been able to do low temperature work because the Municipality of Leiden has objected to his working on condensed gases and wants the cryogenic laboratory to be moved from the city. Discusses this. A commission from the Royal Academy of Sciences in Amsterdam, at the request of the government, is to give evidence on the alleged dangers of his laboratory to the neighbourhood. The commission will want to know how it is possible for Dewar to work in the centre of London. Was sorry he could not visit Dewar's laboratory. Lists questions he would like Dewar to answer concerning the laboratory. Is sending photographs of apparatus; comments on these.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/4  12 May 1896

2 pp

Contents:
Leiden MS
Thanks Dewar for letter of 8 March and for offer of help in the defence of his (O's) laboratory. Asks if he might print Dewar's letter with the report to be presented to the Ministry of Internal Affairs; comments on this.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/5  10 Feb 1897

2 pp

Contents:
Leiden MS
Dewar will have received paper on Zeeman's work; comments on this and hopes Dewar will repeat the experiment. Has only been able to do limited work on liquid and compressed gases because continued opposition prevents use of extremely low temperatures. Supreme Count has given verdict that when sufficient precautions have been taken, he "may be allowed to grow". Hopes to recommence his work in a few months.

H.Kammerlingh Onnes to [James] Dewar  DEWAR/DIIe/6  29 Dec 1903

2 pp

Contents:
Leiden MS
Thanks Dewar for agreeing to help Crommelin. Comments on Crommelin Read with pleasure Dewar's address to B.A. Seems to have escaped Dewar that the systematic introduction of regeneration in [3] liquefying gas before Linde has been a characteristic of his own work. Comments on Dewar's "disaster" with helium. Dewar's attack on helium is the boldest "that can be dreamt of in low temperature work even by yourself".

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/7  17 Jan 1905

2¼ pp

Contents:
Leiden MS
Congratulates Dewar on baronetcy and on award of Lavoisier Medal. Will send copy of address in which he pointed out intrinsic scientific value of Dewar's work. Comments on discrepancies in Dewar's Belfast address on critical point of hydrogen.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/7a  8 June 1905

3 pp

Contents:
Leiden MS
Has had letter from Board of the Hot Springs referring him to Dewar for helium from Bath wells. Understands Dewar has machinery for extracting the gases regularly; comments on this. Work has advanced so that he can take in hand the determination of the isotherms of helium at low temperatures and the magnetic dispersion of the planes of polarisation; comments on this and need to obtain pure helium. Comments on problem of isotherms. Asks Dewar to assist him with supplies of pure helium.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/8  22 July 1905

22/3 pp

Contents:
Leiden MS
Thanks Dewar for reference to Bakerian lecture; comments on this. Comments on Dewar's use of his (O's) title.

[James Dewar to H.Kamerlingh Onnes]  DEWAR/DIIe/9  [?ca.1905]

4 pp

Contents:
Royal Institution MS draft
Sympathises with Onnes' remarks about projected work on helium. Comments on supplies available and on progress of his own work. Has been seriously ill. If his health makes it impossible for him to continue helium work, will have to consider what should be done with material he has; Onnes will not be forgotten.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/10  7 April 1908

6 pp

Contents:
Leiden MS
The substance he obtained was not solid helium but solid hydrogen in gaseous helium. Gives details of the helium experiments. Decision about the critical point of helium is only to be obtained by a prolonged systematical investigation. Sorry Dewar's ill health has hampered his scientific work.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/11  20 July 1908

2¼ pp

Contents:
Leiden MS
Is sending Dewar further details of his helium experiments.
Is enclosing photograph of the apparatus; comments on this.
Comments on facilities available for research. Difficult working with liquid helium; comments on this.
With annotated photograph: DEWAR/DIIe/12 and notes on the work leading to the liquefaction of helium: 1½pp, MS; DEWAR/DIIe/13.

E.Kamerlingh Onnes Bijleveld to [James] Dewar  DEWAR/DIIe/14  8 Aug 1908

1¼ pp

Contents:
Leiden MS
Her husband is ill and has asked her to send Dewar copy of Dutch paper; the plates give some information which Onnes was not able to send to Dewar. Will send English translation and an abstract.

H.Kammerlingh Onnes to [James] Dewar  DEWAR/DIIe/15  10 Aug 1908

4 pp

Contents:
Leiden MS
Thanks Dewar for telegram to his wife. Gives details of the properties of helium.

E.Kamerlingh Onnes Bijleveld to [James] Dewar  DEWAR/DIIe/16  13 Aug 1908

1½ pp

Contents:
Leiden MS
Thanks Dewar for telegram and letter. Her husband is recovering from his illness. Onnes is grateful to Dewar for offer to read his, Onnes', paper at Dublin.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/17  3 Sept 1908

3 pp

Contents:
Leiden MS
Had not reaslised the British Association meeting started so early in September; comments on this. Does not know on which day his paper is to be read but is afraid the translation will not reach Dewar in time; comments on this.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/18  3 Sept 1908

4 pp

Contents:
Leiden MS
Understands Dewar is to give paper at the [British Association] meeting. Presumes Dewar will deal with his work on the Joule-Kelvin effect; comments on this. "It will be a great satisfaction to you to refer to your foreshadowing by your beautiful image of helium some of the properties of this exceptional liquid." Discusses Dewar's suppositions concerning the properties of helium in the light of his own work on helium.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/19  4 Sept 1908

2½ pp

Contents:
Leiden MS
Has received programme and telegram saying that his paper will be read on Monday. Slides should reach Dublin on Monday morning. Comments on references to other papers. On some points in his paper, he expresses himself with caution; comments on this.

H.Kamerlingh Onnes  DEWAR/DIIe/20  Sept 1908

18 pp

Contents:
Typescript, with MS notes [by Dewar], and 3 plates
The liquefaction of helium.
[Read at British Association meeting, Dublin.]

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/21  25 Sept 1908

1½ pp

Contents:
Leiden MS
Health is improving and he will be able to go to the Paris Congress; comments on this. Thanks Dewar for his kindness at Dublin and for sympathetic way in which he presented his, Onnes', work. Dewar's last letter has not removed his difficulties concerning the properties of helium from absorption by charcoal; comments on this. When he is better wants to invite Dewar to come to see the helium.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/22  15 Nov 1908

1¼ pp

Contents:
Leiden MS
The Amsterdam Society for Physics is to present medals to him and to van der Waals. He has to speak about van der Waals and wants to draw attention to prominent place Dewar gives to van der Waals' theory. Asks if he might quote Dewar's reference to van der Waals in letter of 25 July: "the master of us all. He is after all the creator of all our ideas and cannot be too highly honoured".

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/23  22 Nov 1908

2 pp

Contents:
Leiden MS
Thanks Dewar for letter and telegram. Was pleased to quote Dewar's words which gave van der Waals great pleasure. Agrees that van der Waals is not given sufficient recognition; thinks it needs time for his work to be seen "in its full greatness by the general scientists". Maxwell appreciated the work but Clausius did not grasp the scope of it. Boltzmann also appreciated van der Waals' work. Comments on his health.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/24  11 March 1909

1 p

Contents:
Leiden MS
Congratulates Dewar on recent honour. Pleased to see the growing appreciation of Dewar's work.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/25  30 Jan 1910

4 pp

Contents:
Leiden MS
Congratulates Dewar on award of Davy Medal and on nomination as foreign member of the Academy of Rome. Pleased that the importance of Dewar's work is being recognised. Refers to death of L.Mond. Discusses the Association Internationale du Froid and asks Dewar to join the Committee on liquefied gases and units. Comments on his interest in the propagation of the metric system and of the CGS. The helium work is progressing very slowly. Comments on his health.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/26  12 Nov 1910

2½ pp

Contents:
Leiden MS
Sorry Dewar has had to have a serious operation. Comments on award of Nobel Prize to van der Waals, who was pleased to receive telegram from Dewar. Asks Dewar if he will allow his name to appear as member of the Commission on units.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/27  17 Nov 1910

2 pp

Contents:
Leiden MS
Thanks Dewar for interesting letter. Manufacturers must be satisfied with system of units. One difficulty is that frigivotechnics is only a small part of applied thermodynamics and mechanics. Sorry to hear of illness of Lady Dewar.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/28  19 March 1912

3 pp

Contents:
Leiden MS
Pleased Dutch Society of Science has made Dewar a foreign member. Comments on Dewar's work. Hopes Lady Dewar's health has improved. Comments on grant to his laboratory from the Association Internationale de Froid and the recognition of the international character of his laboratory. Invites Dewar to serve on committee "patronizing" grants for his work; discusses this.

H. Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/29  20 Dec 1919

1 p

Contents:
Typescript
Sends Christmas greetings. Congratulates Dewar on award of Franklin Medal. Pleased Dewar is to lecture at Royal Institution in January on low temperature research. Regrets he has never been able to make Dewar's personal acquaintance. Refers to the war which prevented him from visiting friends. His health is too delicate for him to travel except in the best part of the year but he has not given up hope of meeting Dewar.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/30  12 Oct 1922

1½ pp

Contents:
Leiden MS
Accepted invitation to lead discussion at the Faraday Society and hoped he and his wife would meet Dewar in London. Regrets that he has not been allowed to travel. Is sending proof of the paper which will be read for him.

H.Kamerlingh Onnes to [James] Dewar  DEWAR/DIIe/31  14 Dec 1922

2 pp

Contents:
Leiden MS
Thanks Dewar for tribute on the 40th anniversary of his professorship; comments on this. Comments on book with which he was presented. Has found that indiani becomes supraconductive in liquid helium.

[Richard] Owen to [James] Dewar  DEWAR/DIIe/32  14 July 1873

3 pp

Contents:
Richmond Park MS
Thanks Dewar and McKendrick for abstract of papers on the physiological action of light. Might obtain specimens of squid and other cephalopoda from Leith. Study of modifications of the pigmented layer in eye of cephalopoda would add valuable information to work.

File f: Correspondence - P  DEWAR/DIIF  1874-1919

[Louis] Pasteur to [James Dewar]  DEWAR/DIIF/1  30 May 1874

1/3 p
Language:  French

Contents:
Paris MS;
Apologises for not having replied to letter. Asked a friend to translate Dewar's letter but the friend was ill and unable to do as he wished.

Charles A. Parsons to James Dewar  DEWAR/DIIF/2  28 March 1919

1 p

Contents:
Upper Brook St., W.l MS
Thanks Dewar for reference to Rayleigh's suggestion in 1898 that a turbine should be used for liquefying gases.

James Dewar  DEWAR/DIIF/3  ca 1915

4 pp

Contents:
Typescript & MS
Provisional specification for patent for "improvements in means for obtaining liquid films and observing light effects thereon and the utilization thereof for various purposes".

W.H.Perkin  DEWAR/DIIF/4  22 June 1894

2 pp

Contents:
Harrow typescript & MS
Pleased Dewar received the specimens safely. Interested in the matter of the phosphorescence of ketonic compounds caused by cooling them to a very low temperature; comments on this. Comments on the specimens he has sent. With some ketonic compounds the atomic changes are rapid, with others slow; when the changes are very gradual it is not likely that phosphorescence would be seen if it were connected with this atomic change.

H.I.Martin, Commissioner for Oaths  DEWAR/DIIF/5  29 Jan 1912

1 p

Contents:
Queen St, London typescript
Statement that he went to Otto Oberländer's laboratory where he was given bottle containing 25g phospham. A 5g sample was taken from the bottle and sealed in a tube for Dewar's use. A further 5g was taken from the original bottle for Oberländer's use and the original bottle resealed.
With copy: DEWAR/DIIf/6

[J.A.F.] Plateau  DEWAR/DIIF/7  Undated

1 p

Contents:
MS
Biographical notes [by Dewar] on Plateau.

Lyon Playfair to R.Cross  DEWAR/DIIF/8  18 April 1874

2½ pp

Contents:
South Kensington MS copy
Has always been chary about influencing the patronage of the Home Secretary with regard to vacant University Chairs, but his opinion might not be considered an intrusion with regard to the Chair of Chemistry at the University of Glasgow. Without Dewar's knowledge or request, draws attention to enclosed testimonial. "Chemical investigation is at such a low ebb in England that when a most promising original investigator, like Mr D., arises, his claims are of a very high order. When it is joined, as in his case, to excellent powers of exposition & teaching, his claims become still more prominent."

Lyon Playfair to the Lord Advocate  DEWAR/DIIF/9  30 July 1874

3 pp

Contents:
South Kensington MS copy
Is anxious for the "honour of Scotch Science" that Dewar's claims for the Glasgow Chair have been fairly brought before him. Comments on Dewar's suitability for the Chair.

Lyon Playfair to [James] Dewar  DEWAR/DIIF/10  14 April 1875

3 pp

Contents:
Athenaeum MS
Congratulates Dewar on appointment to Chair at University of Cambridge. Hopes Glasgow University will feel it was mistaken in not appointing Dewar.

Lyon Playfair to [James] Dewar  DEWAR/DIIF/11  20 Jan 1890

10 pp

Contents:
South Kensington MS
Dewar asked for his memories of Joule from 1842 to 1845, when he, Playfair, was Professor of Chemistry at the Royal Institution in Manchester. Comments on scientific activity at Manchester at that time. Discusses Joule's scientific work and his failure to get this work published by the Royal Society. Comments on the attendance of Dalton and Joule at his own lectures; he "used to look upon them as two types of the highest progress in Science".

File g: Correspondence - R  DEWAR/DIIg  1897-1962

Lord Rayleigh to [James] Dewar  DEWAR/DIIg/1  25 June 1897

3¼ pp

Contents:
Terling Place MS
Has read proofs. Sees no weak places in method used. Insulated conducting masses in the interior would give effect of a higher dielectric constant; comments on this. Suggests the Davy Faraday Laboratory purchase glasses for a Michelson's refractometer Comments on this. Comments on proposed visit to Malta

Lord Rayleigh to [James] Dewar  DEWAR/DIIg/2  20 July 1897

22/3 pp

Contents:
Terling Place MS
Dewar's results are very interesting but do not hold out much promise of isolating helium; might have less tendancy to dissolve than H². Has been going over work by Crookes who found H² required extraordinary drying to have the minimum viscosity; comments on this.

S.W.Smith to the Secretary, Royal Institution  DEWAR/DIIg/3  13 June 1962

1 p

Contents:
South Kensington MS
Is enclosing letter from Sir James Dewar to Sir William Roberts-Austen at the Royal Mint. Outlines provenance of letter. In about October 1899 he delivered personally to Dewar a small sample of pure gold wire.
With enclosure

James Dewar to [William] Roberts-Austen  DEWAR/DIIg/4  22 Aug 1899

3 pp

Contents:
Royal Institution MS
If he ever gets to work again, will be anxious to try pure gold wire. Wants sample of electrolytic wire to compare with "Au. Ther" Thanks Roberts-Austen for offering to help. Has found that pure helium has lower boiling point than hydrogen and can see the possibility of getting within 7° or 8° of the absolute temperature. Comments on his wife's ill-health. Hopes Roberts-Austen has not suffered from Iron & Steel Presidential duties. Would like the wire by mid-October.
MS note added [by Smith]: was sent with wire and saw Dewar.
With copy of letter [by Smith]: 1p, MS; DEWAR/DIIg/5

E.Rutherford to James [Dewar]  DEWAR/DIIg/6  24 Oct 1907

2½ pp

Contents:
Manchester MS
He and Cox have shown their classes the method of exhaustion by cooling charcoal with liquid air. Has also been shown at Physical Society at McGill University. He has used method in research; comments on this. Method would be well-known at the University but cannot speak for Toronto and other scientific centres. Will be pleased to lecture at Royal Institution but will have difficulty in finding suitable subject.

Abel & Imray to James Dewar  DEWAR/DIIg/7  28 Oct 1907

1 p

Contents:
London typescript
Acknowledges letter of 26 October enclosing letter from Rutherford. Copy of Rutherford's letter has been sent to their Canadian agent.

E.Rutherford to James [Dewar]  DEWAR/DIIg/8  15 May 1908

2½ pp

Contents:
Manchester MS
Comments on his calculations of the rate of production of helium by radium. His work in counting the [lambda] particle "leads me to believe that my Old calculations are based on the solid ground of fact". Hopes Dewar's experiments will be successful and "suffice to show up the rottenness of the little experimental data previously to hand".

File h: Correspondence - s  DEWAR/DIIh  1886-1922

[James Dewar] to [?A.E.] Shipley  DEWAR/DIIh/1  3 Oct 1914

2/3 p

Contents:
Cambridge MS
Thinks it would be best to leave the matter alone. British Professors are loyally supporting the policy of the Government. No point in publishing further statements about war. Does not think a signed manifesto would have any good effect on German Professors and regrets he cannot support the idea.

[A.] Smithells to [James] Dewar  DEWAR/DIIh/2  21 Jan 1922

1 p

Contents:
Nottingham telegram
Has worked out details and can explain spectral phenomena of carbon perfectly.

J.S.Stas to [James Dewar]  DEWAR/DIIh/3  27 oct 1886

4 pp

Contents:
St Gilles les Bruxelles MS; French
Acknowledges receipt of letter, paper on atomic weight of aluminium and Dr Kimball's reports. Is sending reprints on determination of the proportional relation between silver and its chlorides and bromides. For over thirty years has been aware that the atomic weight of aluminum determined by Dumas was wrong; comments on this Comments on work on occlusion of oxygen by silver. Discusses work on chlorate and perchlorate of potassium and comments on his larger study to test Lockyer's hypothesis on the possibility of dissociating the bodies regarded as simple. Dissociation of metals is an illusion, Does not know if he will live long enough to see his work published.
With translation; 2pp, typescript, DEWAR/DIIh/4, and two copies of this DEWAR/DIIh/5 and DEWAR/DIIh/6.

G.G.Stokes to [James] Dewar  DEWAR/DIIh/7  29 March 1898

4¼ pp

Contents:
Kingsland, Shrewsbury typescript copy
Thanks Dewar for explaining his experiments and his views about them. Comments on Dewar's experiments on vacuum jackets, referring particularly to radiation and to Dewar's use of the word "transparency". Defines terms 'convection", "molecular convection" and "direct convection". Doubts whether the transfer of heat at low pressures is due to radiation alone and whether it is not largely due to molecular convection. Dewar found a great improvement in insulati n when the best obtainable vacuum was substituted for a "good" vacuum. Would conclude that even with a "good" vacuum, transfer takes place by molecular convection and not by radiation. Dewar's experiments show that the radiation at low temperatures is much less than is commonly supposed and that the transfer of heat is to a much larger degree due to molecular convection. Effect of radiation from the outer wall in producing evaporation in the liquid air is small; discusses this. Effect of finely divided carbon, silica etc. in arresting transfer of heat could by explained by either the radiation hypothesis or the molecular convection hypothesis; comments on this. Contrast between effects of the glass and silver surfaces at highest exhaustion seems to favour the radiation hypothesis but thinks there is reason to suppose similar difference would exist in case of molecular convection. Desirable to try ths glass and silver double tube unexhausted to compare with the exhausted tube which Dewar has tried. Would be interesting to try a double tube with surfaces silvered and gilt; comments on this.

File i: Correspondence - T  DEWAR/DIIi  1874-1909

P.G.Tait  DEWAR/DIIi/1  20 April 1874

1½ pp

Contents:
Edinburgh MS
Testimonial for Dewar [in connection with Chair of Chemistry at Glasgow].

Ellen Terry to [James] Dewar  DEWAR/DIIi/2  25 April [?]

2 pp

Contents:
Earls Court MS
When she is not at the theatre will be in the lecture room "Hall of Entertainment". Sorry to learn of his wife's illness. Is just off to rehearsal; "Mr Irving is "at it" every moment of his time".

Thermos Ltd (M.Bartholomew) to James Dewar  DEWAR/DIIi/3  7 Jan 1909

1½ pp

Contents:
Holborn Viaduct typescript
In several lawsuits in Germany it is desirable to establish meaning of Dewar's vessels and Weinhold-Dewar vessels. Asks what Dewar thinks the expression Dewar's vessels implied in 1903. R. Burger & Co. thinks the term was only applied to glass vessels; comments on this. Understands experiments have been done with metal vessels and it has been found desirable to substitute the metal vessels for the glass ones. Wants to know if this was done in 1903.
Verso: draft reply, 13 Jan.1909: ¾p, MS: needs expert advice of
Patent Agent to be able to help. Has ever heard of Weinhold Dewar vessels.

William A. Tilden to [James] Dewar  DEWAR/DIIi/4  10 Oct 1900

2½ pp

Contents:
Royal College of Science, London MS
Asks if Dewar could make him some liquid hydrogen for experimental purposes. Determination of specific heat of a couple of metals at this temperature would probably settle question whether the atomic heats at absolute zero are identical.
Verso: draft reply, 10 Oct. 1900; ¾p, MS. Apparatus has been adapted for a different purpose and it will be some time before he can produce liquid hydrogen. Professor Ramsay might be able to help Tilden sooner. When he is able to make a sufficient supply of the liquid, Tilden will not be forgotten.

L. Troost to [James Dewar]  DEWAR/DIIi/5  25 June 1897

12/3 pp
Language:  French

Contents:
Paris MS;
Wants to do one of Dewar's experiments with air or oxygen liquified by Dewar's method during his Sorbonne course. Suggests dates when he might visit Dewar. Would like Dewar's opinion of the apparatus constructed by Lennox, Reynolds and Fyfe, or on any other apparatus for liquefaction without using mechanical force. Would be pleased to make Dewar's results known there.

L. Troost to [James Dewar]  DEWAR/DIIi/6  1 July 1897

1½ pp
Language:  French

Contents:
Paris MS;
Gives details of arrangements for his visit to Royal Institution. Grateful to Dewar for being willing to show him his experiments with liquid oxygen. Will be pleased to make Dewar's work known at his Sorbonne course.

L. Troost to [James Dewar]  DEWAR/DIIi/7  6 July 1897

1 p
Language:  French

Contents:
Paris MS;
Comments on arrangements for his visit to Royal Institution.

L. Troost to [James Dewar]  DEWAR/DIIi/8  19 July 1897

12/3 pp
Language:  French

Contents:
Paris MS;
Has returned from Edinburgh where he met Dewar's brother-in-law and sister-in-law. Thanks Dewar for showing him experiments which he wants to bring to attention of his Sorbonne audience. Lists apparatus he has sent for from Lennox, Reynolds & Fyfe.

L. Troost to [James Dewar]  DEWAR/DIIi/9  4 Nov 1897

21/3 pp
Language:  French

Contents:
Paris MS;
Lennox, Reynolds & Fyfe sent him a new model of the apparatus he wanted. Discusses the apparatus which was unsatisfactory.
As a result has not yet been able to show Dewar's experiments on liquid oxygen or air to his Sorbonne audience.

L. Troost to [James Dewar]  DEWAR/DIIi/10  16 Jan 1898

2½ pp
Language:  French

Contents:
Paris MS;
Sends good wishes for 1898. Has not been successful in obtaining liquid oxygen and reproducing Dewar's experiments; discusses this. Hopes to have another attempt once his course has finished.

File j: Correspondence - V & W  DEWAR/DIIj  1900-1917

J.D.van der Waals to [James] Dewar  DEWAR/DIIj/1  9 Jan 1900

4 pp

Contents:
Amsterdam MS
Thinks Dewar is referring to his 1878 papers on the specific heat of saturated vapour. Observed that the adiabatic may have two positions with regard to the boundary curve; discusses this. Concluded that by adiabatic expansion, gases may be brought to liquid, is true for molecules which have Cp/Cv?1.08
If nelium has value of Cp/Cv = 5/3, expansion must bring it into the liquid state. Must the liquefaction be necessarily preceded by a mist; discusses this. Hopes to receive Dewar's papers. Is writing article on condensation of gases for the Encyclopaedia Britannica and would like references to Dewar's contributions.

J.D.van der Waals to [James] Dewar  DEWAR/DIIj/2  11 Jan 1900

2½ pp

Contents:
Amsterdam MS
Offers explanation of Dewar's results. According to theory it is not p but (p+k) which is proportional to T; discusses this. From p+k proprtional to T, follows p2 - p1/T2 - T1 = constant
To find the constant value of this, two pressures must be measured at known temperature. The great fall in P/T; is not a sure sign of liquefaction. The sure sign of it must be found in a fall in value of p2 - p1/T;2 - T1

J.D.van der Waals to [James] Dewar  DEWAR/DIIj/3  13 Jan 1900

3½ pp

Contents:
Amsterdam MS
Comments on theory of liquefaction. In figures Dewar sent him, there is something strange and not according to theory. If this is correct, it would place helium apart from all other substances. Dewar's line of pressures cuts the p axis, at T abs=0, above the T axis at a positive pressure. This cannot be so with other substances. Discusses this. The positive value which Dewar has found for the hypothetical pressures at Tabs=0, would be sign that helium molecules do not attract each other. Asks if Dewar is sure of his temperatures.

J.D.van der Waals to [James Dewar]  DEWAR/DIIj/4  5 Feb 1913

1 p
Language:  English and French

Contents:
Amsterdam MS;
Kamerlingh Onnes wishes the Committee of Patronage of the Association of Cold to approve the way in which the grant to his laboratory in Leiden is used. Asks if Dewar will permit him to give his name in support of Onnes' work.

J.D.van der Waals to James Dewar  DEWAR/DIIj/5  17 Dec 1917

1 p

Contents:
(Postmark) Amsterdam MS; postcard
Thanks Dewar for congratulations on 80th birthday.

Walter Wahl to James Dewar  DEWAR/DIIj/6  13 Sept 1912

3 pp

Contents:
Helsingfors MS
Is sending manuscript of optical investigation of crystal properties of hydrogen and oxygen. Discusses the paper. Will return to the Davy-Faraday Laboratory at the beginning of term in October. Seems useless to start teaching at the laboratory there until the question of his future position at Helsingfors university is settled; comments on this.

Biographical papers & cuttings: photographs; notebook  DEWAR/Box DIII  [n.d.]

File a  DEWAR/DIIIa  1923-1924

[James Dewar]  DEWAR/DIIIa/1  Undated

5 pp

Contents:
MS
Glasgow Club dinner: notes on the University's history.

H.M.Ross to [H.] Young  DEWAR/DIIIa/2  13 Dec 1924

2 pp

Contents:
Royal Institution MS
Dewar's literary executors are preparing edition of his scientific papers. Believes the R.I.'s printers has a number of the blocks used to illustrate Dewar's Discounses printed in the Proceedings. Asks if Cambridge University Press might have the use of these for book.
With MS copy of reply, 17 Dec.1924; 1p, MS; agrees to request.

H.M.Ross to [H.] Young  DEWAR/DIIIa/3  17 Dec 1924

3 pp

Contents:
Earl's Court Ms
Pleased it is all right about the blocks. Does not want the blocks sent to Cambridge University Press until arrangements have been made for their reception. Would be convenient to know which blocks Clowes has.

H.Young  DEWAR/DIIIa/4  [ca. 1924]

2/3 p

Contents:
Typescript
List of blocks illustrating Sir James Dewar's papers, 1886-1921.

James Dewar  DEWAR/DIIIa/5  undated

½ p

Contents:
Typescript
Notes giving dates of appointment to offices held at Royal Institution and list of special Friday evening Discourses at which the Prince of Wales (later Edward VII) presided.

James Dewar  DEWAR/DIIIa/6  undated

¾ p

Contents:
Typescript
List of Friday evening Discourses given by Dewar, 1873-1921

James Dewar  DEWAR/DIIIa/7  undated

1 p

Contents:
Typescript
List of lecture courses given [at R.I.] by Dewar, noting year, subject and number of lectures in course; 1875-1907.

James Dewar  DEWAR/DIIIa/8  undated

¼ p

Contents:
Typescript
List of Juvenile Lectures given [at R.I.] by Dewar, 1878-1913, noting year, subject and number of lectures in course.

James Dewar  DEWAR/DIIIa/9  1923

½ p

Contents:
Typescript
List of apparatus bequeathed by Dewar to the Royal Institution.

File b  DEWAR/DIIIb  1911-1925

James Dewar  DEWAR/DIIIb/1  [1911]

1 p

Contents:
Printed; newspaper cutting
Thirty-four years at the "R.I.". An anniversary talk with Sir James Dewar.

James Dewar  DEWAR/DIIIb/2  20 June 1913

1 p

Contents:
Printed; cutting from The Times
New light on an old generalization. Report of Dewar's research on specific heat with reference to Dulong and Petit's generalization that the atoms of all simple bodies have the same capacity for heat.

James Dewar  DEWAR/DIIIb/3  24 Jan 1920

1 p

Contents:
Printed; cutting from Scotsman
Report of presentation by Sir James Crichton-Browne to Dumfries Burns Club of Dewar's gift of a silver snuff-box, which had been given to Burns by Lord Glencairn in 1787.

James Dewar  DEWAR/DIIIb/4  29 Jan 1921

1 p

Contents:
Printed; cutting from The Times
Rockets to test the atmosphere. Report of Dewar's Friday evening lecture on "Cloudland studies".

Royal Institution (E.H.Grove-Hills)  DEWAR/DIIIb/5  5 May 1921

1 p

Contents:
Albemarle Street printed
Letter inviting subscriptions towards a Golden Wedding gift for Sir James and Lady Dewar.

Royal Institution (E.H.Grove-Hills)  DEWAR/DIIIb/6  10 June 1921

1 p

Contents:
Albemarle Street printed
Gold cup has been chosen for a Golden Wedding gift to Sir James and Lady Dewar. The presentation will be made on 17th June.

Royal Institution  DEWAR/DIIIb/7  17 June 1921

7 pp

Contents:
Printed
Golden Wedding presentation to Sir James and Lady Dewar. Includes speech made by the Chairman, the Duke of Northumberland, and reply by Dewar.

Thomas Goodall Nasmyth  DEWAR/DIIIb/8  January 1922

40 pp

Contents:
Edinburgh printed
The Kingdom: its characteristics and distinguished sons. Notes on the Kingdom of Fife, including a biographical note on James Dewar who was born at Kincardine-on-Forth, Fife (p.20).

Royal Institution  DEWAR/DIIIb/9  9 April 1923

6½ pp

Contents:
Printed
General Monthly Meeting, 9 April 1923. Report of meeting, chiefly Resolutions concerning death of Dewar.

James Dewar  DEWAR/DIIIb/10  [ca. 1923]

34 pp

Contents:
MS; various hands
Biographical notes, 1873-1923, noting appointments and honours, but chiefly a Royal Institution "diary", listing lectures and discourses given with a note of attendances.

Royal Institution  DEWAR/DIIIb/11  March 1925

4 pp

Contents:
Albemarle Street printed
The Dewar Memorial, to be erected in the entrance hall of the Royal Institution. Statement of present position. With donation list.
With invitation to unveiling of the Dewar Memorial by the Duke of Northumberland on 12th November; 1p, printed; DEWAR/DIIIb/12

Royal Institution  DEWAR/DIIIb/13  undated

12 pp

Contents:
Printed
List of papers by Professor Sir James Dewar, M.A.LL.D.D.Sc.F.R.S. and Colleagues relating to Investigations at Low Temperatures.

File c  DEWAR/DIIIc  1923-1924

J.A.Fleming  DEWAR/DIIIc/1  4 May 1923

5 pp

Contents:
Typescript
An appreciation of the scientific work and discoveries by the late Sir James Dewar. Broadcast "by wireless telephony from the London Centre" at 9p.m. on 4th May.

John G.McKendrick  DEWAR/DIIIc/2  [ca.1923/4]

3 pp

Contents:
Typescript
Reminiscences and biographical notes about James Dewar.

File d  DEWAR/DIIId  1890-ca.1925

Royal Institution  DEWAR/DIIId/1  1890

Contents:
Photograph
The Ante room at the Royal Institution, showing portraits of Faraday, Tyndall and Mendeleev and busts of J.Barlow, W. Spottiswood, John Fuller, H.Bence Jones and Daniel Moore.

Royal Institution  DEWAR/DIIId/2  [1890]

Contents:
Photograph
The Ante room at the Royal Institution, looking north-east.

Royal Institution  DEWAR/DIIId/3  27 June 1891

Contents:
Photograph
Photograph by K.M.Reynolds of lecture table, taken the morning after Professor Dewar's Faraday Centenary Lecture of 26 June.

Royal Institution  DEWAR/DIIId/4  [27] June 1891

Contents:
Photograph
Photograph by K.M.Reynolds of front view of lecture table after Dewar's Faraday Commemoration Lecture, June 1891.

Royal Institution  DEWAR/DIIId/5  June 1891

Contents:
Photograph
Photograph by Miss Reynolds of the oxygen apparatus in Lecture Theatre after Dewar's lecture on "The chemical work of Faraday in relation to modern science", 26 June 1891.

Royal Institution  DEWAR/DIIId/6  3 June 1892

Contents:
Photograph
Photograph by K.M. [Reynolds] of apparatus at R.I. for making ethylene, used at Dewar's lecture on the magnetic properties of liquid oxygen, 10 June 1892.

Royal Institution  DEWAR/DIIId/7  June 1892

Contents:
Photograph
Photograph by K.M. [Reynolds] of compression and exhaust pumps at R.I. used for Dewar's lecture on the magnetic properties of liquid oxygen and liquid air, 10 June, 1892.

Royal Institution  DEWAR/DIIId/8  11 June, 1892

Contents:
Photograph
Photograph by K.M. [Reynolds] of diagrams used for Dewar's lecture on magnetic properties of liquid oxygen and air, 10 June.

Royal Institution  DEWAR/DIIId/9  February 1894

Contents:
Photograph
Photograph by K.M. [Reynolds] of oxygen apparatus in R.I. Lecture Theatre after Dewar's second lecture on liquid air, given before the Prince of Wales, 22 Feb. 1894.

Royal Institution  DEWAR/DIIId/10  14 May 1894

Contents:
Photograph
Photograph by K.M. [Reynolds] of the R.I. Library, looking north east.

Royal Institution  DEWAR/DIIId/11  30 May 1894

Contents:
Photograph
Photograph by K.M. [Reynolds] of the R.I. from Albemarle Street

Royal Institution  DEWAR/DIIId/12  [ca. 1890-4]

Contents:
Photograph
Photograph [by K.M.Reynolds] of apparatus in R.I. lecture theatre.

Royal Institution  DEWAR/DIIId/13  [ca. 1894]

11/3 pp

Contents:
MS
Copy of list of photographs sent to Mr Darn in August 1893 of apparatus and of laboratory and lecture theatre, and list of photographs sent in May 1894, of the Royal Institution, apparatus and the Faraday statue.

Helium  DEWAR/DIIId/14  ca.1909

Contents:
Photograph
Photograph of the last experimental helium liquefier.

Lady Dewar  DEWAR/DIIId/15  [ca. 1925]

Contents:
Photograph
Photograph of Lady Dewar in front of the Dewar Memorial at the Royal Institution.

Notebook  DEWAR/DIIIe/1  1907-1909

Contents:
MS
Notebook on experimental observations, including work on helium, radiometer studies, radium, and phosphorescence.

Lecture notes and lists  DEWAR/Box DIV  [n.d.]

File a  DEWAR/DIVa  1878

[James Dewar]  DEWAR/DIVa/1  [1878]

½ p

Contents:
MS
Soap Bubble lecture: notes on structure and properties of bubbles.

[James Dewar]  DEWAR/DIVa/2  [1878]

22 pp

Contents:
MS
Outline of the six lectures to be given on soap bubbles.

File b  DEWAR/DIVb  1878-1879

James Dewar  DEWAR/DIVb/1-6  1878-1879

Contents:
Royal Institution MS
Lectures on A soap bubble. Draft reports of lectures [?verbatim].
Lecture 1: 28 Dec. 1878; 13pp.
Lecture 2: 31 Dec. 1878; 17pp.
Lecture 3: 2 Jan. 1879; 13pp.
Lecture 4: 4 Jan. 1879; 13pp.
Lecture 5: 7 Jan. 1879; 14pp.
Lecture 6: 9 Jan. 1879; 17pp.

File c  DEWAR/DIVc  1883-4

[James] Dewar  DEWAR/DIVc/1  1883-4

1 booklet, 10pp

Contents:
Royal Institution
Booklet of newspaper cuttings: reports of Dewar's Christmas Lectures, 29 Dec.1883-10 Jan. 1884, on "Alchemy in relation to modern science". Includes reports from The Times and The Daily News.
With loose Daily News cuttings of reports of lectures on 28 and 31 Dec.1883, 2 and 4 Jan. 1884; DEWAR/DIVc/2-5.

File d  DEWAR/DIVd  1888-1889

[James Dewar]  DEWAR/DIVd/1-5  1888-1889

Contents:
Royal Institution MS
Texts of Christmas Lectures on Clouds and Cloudland.
Lecture 2: 29 Dec. 1888; 27pp.
Lecture 3: 1 Jan. 1889; 27pp.
Lecture 4: 3 Jan. 1889; 23pp.
Lecture 5: 5 Jan. 1889; 23pp.
Lecture 6: 8 Jan. 1889; 24pp.

File e  DEWAR/DIVe  1890-1891

[James] Dewar  DEWAR/DIVe/1  [1890-1891]

1 notebook

Contents:
[Royal Institution] typescript
Notebook containing text of the course of six Christmas lectures on Frost and fire. 107pp.

Notes on scientists and scientific work  DEWAR/Box DV  1845-1903

File a  DEWAR/DVa  1845-1898

[James] Dewar  DEWAR/DVa/1  12 May 1898

1 p

Contents:
Newspaper cutting
Report in The Times of Dewar's liquefaction of hydrogen at the Royal Institution.

[James] Dewar  DEWAR/DVa/2  13 May 1898

1 p

Contents:
Newspaper cutting
Report in The Times of Dewar's communication to the Royal Society on the liquefaction of hydrogen and helium.

[Michael] Faraday  DEWAR/DVa/3  4 Feb 1845

2½ pp

Contents:
Typescript & MS
Typescript copy of extract from the Times report of 4 Feb.1845 of Faraday's lecture on the liquefaction and solidification of gaseous bodies.

S.Wroblewski and K.Olszewski  DEWAR/DVa/4  undated

3 pp

Contents:
Typescript
List of papers by Wroblewski and Olszewski in Comptes Rendus, 1883-1886.

[S.] Wroblewski  DEWAR/DVa/5  undated

3¼ pp

Contents:
Typescript
List of papers by Wroblewski.

MS notebook  DEWAR/DVb/1  1898-1907

159pp + 15 loose pp

Contents:
Laboratory notebook: work on liquefaction of hydrogen, 1898, fluorine (including report of explosion which occurred when tube containing solid fluorine was broken in liquid hydrogen, March 1903), and attempts at liquefaction of helium. At back of book, references to literature.
With letter enclosed from J.D.H. [Dickson] to Dewar, 11 Dec.1895; 2pp, MS; DEWAR/DVb/2. Discusses the reduction of temperature noted in Thomson & Joule's paper and compares Thomson's and Zeuner's formulae. Seems that different results are to be obtained for the cooling according to whether they calculate from the velocity at the point or from the adiabatic equation pvk = PVk, and pv/t = PV/T;, that is from the expansion.

MS notebook  DEWAR/DVc/1  [1902]

50pp + 21 loose pp

Contents:
Notes made by Dewar in course of preparation of his Presidential Address to the British Association.
With letter enclosed from W.Roberts-Austen, undated; 1p, typescript & MS; DEWAR/DVc/2. Gives details of preparation of pure lead and pure tin, with a note on "gridiron" lead.

Petavel papers; St Louis Exhibition  DEWAR/Box DVI  1904

Royal Commission for the St Louis Exhibition (Viscount Peel) to James Dewar  DEWAR/DVI/1  30 Sept 1903

1 p

Contents:
Westminster; typescript
Thanks Dewar for allowing them to reproduce at St Louis the results of his low temperature work. Demonstration of properties of liquid hydrogen will be of great interest as will the exhibit of the contribution of British scientists to low temperature research.
Verso: draft reply by Dewar, 3 Oct. 1903; ½p, MS. Thanks for letter. Refers to American interest in low temperature work. Hopes the proposed exhibition will be an attraction at the St Louis exhibition.

Boverton Redwood to [James] Dewar  DEWAR/DVI/2  24 Nov 1903

1½ pp

Contents:
Bishopgate St Within, E.C. typescript
Hydrogen liquefying plant for the St Louis Exhibition is nearly complete and has to be tested before shipment to the U.S.A. Hopes the Managers will agree to the testing being conducted under Dewar's supervision at the Royal Institution; comments on this and asks if Dewar would put the application to the Managers.

Boverton Redwood to Henry Young, Royal Institution  DEWAR/DVI/3  14 Dec. 1903

1 p

Contents:
Westminster typescript
Thanks Young for copy of Managers' resolution passed on 7th December.

[J.E.Petavel]  DEWAR/DVI/4  1904

108 pp

Contents:
MS
Lecture notes, St Louis Exhibition. Includes notes on: historical lectures: opening lecture, 6 Aug.; 2nd lecture, 10 Aug. on work of Faraday, Joule & Thomson; 3rd lecture, 13 Aug. on modern research and discoveries; 28th lecture, 2 Nov. on liquefaction; 35th lecture, 23 Nov. on liquefaction; lectures on liquid hydrogen: drawings of special apparatus used in low temperature lectures and list of lantern slides; 9th lecture, 3 Sept., 12th lecture, 14th Sept., lecture on 1st Oct. and 22nd lecture on 15th Oct.; methods and apparatus: methods and apparatus: 5th lecture, 20 Aug., on manufacture of liquid air and liquid hydrogen; 24 Sept. on liquefaction of gases; 24th lecture, 21 Oct., on manufacture of liquid gases; 30th lecture, 9 Nov., 31st lecture, 12 Nov. and 37th lecture, 26 Nov. on liquefaction of gases; notes on the engineering side of the question; lists of slides of methods and apparatus used in liquefaction of gases; uses in the laboratory: 7th lecture, 23 Aug. on scientific uses of liquid air; 11th lecture, 16 Sept. on scientific uses of liquid air and hydrogen; 20th lecture, 8 Oct. on scientific uses of liquid air and hydrogen; chemical and physical properties: 7th lecture on physical & chemical properties of low temperatures; 33rd lecture, 16 Nov. on liquid gases; magnetic and electric properties: 4th lecture, 17 Aug. and 21st lecture, 14 Oct.; general epitome: 9th lecture, 31 Aug. and 10th lecture, 7 Sept.; commercial uses: 12th lecture, 13 Sept.; 27th lecture, 29 Oct.; cryogenic laboratories: 26th lecture, 26 Oct.; apparatus & methods, lists of slides: 29th lecture, 6 Nov; 30th lecture, 9 Nov.; 31st lecture, 12 Nov.; 33rd lecture, 16 Nov; 34th lecture, 19 Nov.; 35th lecture, 23rd Nov.; 36th lecture, 26th Nov.; final lecture: 30 Nov.; miscellaneous notes: cryogenic laboratories; properties of hydrogen and air; densities of liquid gases; physical constants of oxygen; specific heat; list of lectures; other lectures: 32nd lecture, 14 Nov., St Louis Chemical Society; 34th lecture, 19 Nov.: commercial uses of low temperatures; 35th lecture, 21 Nov., St John's Academy of Science.

49 Photographs  DEWAR/DVI/5  1904

24 pp

Contents:
J.E.Petavel
Volume containing liquid air slides.

J.E.Petavel  DEWAR/DVI/6  1904

1 file

Contents:
London typescript & MS
Lists of apparatus for the low temperature exhibit of the British Royal Commission, for the St Louis Exhibition 1904. Includes: list of apparatus and plant required for the liquid hydrogen exhibit - list of vacuum tubes and flasks, preliminary list of lecture apparatus, list of additional plant, quotation for two tons of zinc, general summary; Lists V and VI for the general low temperature exhibit, including copies of the quotations received; List IX - second list of vacuum vessels and hydraulic test pump, with quotations and notes.

[J.E.Petavel]  DEWAR/DVI/7  [1904]

1 photograph

Contents:
Photograph of liquid hydrogen/liquid oxygen plant at St Louis.

Lennox, Benton & Reynolds Ltd  DEWAR/DVI/8  [1904]

1 p

Contents:
Fulham MS
Drawing of 6 x 2½ CO2 pump, scale 3" to 1 ft.

Lennox, Benton & Reynolds Ltd to J.E.Petavel  DEWAR/DVI/9  [1904]

1 p

Contents:
Fulham blueprint
Blueprint of 8 x 8 x 2½ inch air compressor, scale 3" to 1 ft.

Lennox, Benton & Reynolds Ltd  DEWAR/DVI/10  [1904]

1 p

Contents:
Fulham bludprint
Blueprint of [air compressor], scale 3" to 1 ft.

Lennox, Benton & Reynolds Ltd to J.E.Petavel  DEWAR/DVI/11  [1904]

1 p

Contents:
Fulham blueprint
Blueprint of air liquefier, half size.

J.E.Petavel  DEWAR/DVI/12  1904-5

1 file

Contents:
Manchester typescript & MS
British Royal Commission for the St Louis Exhibition Reports. Includes: "Low-temperature research exhibit. Complete plant in operation, as employed by Sir James Dewar... in the production of liquid and solid hydrogen.", with MS & typescript drafts; extract from paper "Some chemical aspects of the St Louis Exhibition", read before London Section of the Society of Chemical Industry, 9 Jan.1905, by Walter F.Reid; scientific lectures and demonstrations; report on the low temperature exhibit of the British Royal Commission (MS draft); songs and verses in connection with Sir Isidore Spielmann's dinner to the staff and friends, 12 July 1905.

St Louis Exhibition  DEWAR/DVI/13-15  1904

3 photographs

Contents:
Photographs of participants in the Exhibition.
DVI/13 & 14 the same, DVI/15 of 5 British policemen + one other unidentified man.

War Work  DEWAR/Box DVII  1915- 1919

File a: Letters and papers  DEWAR/DVIIa  1915-16

James Crichton-Browne  DEWAR/DVIIa/1  7 June 1915

7 pp

Contents:
Royal Institution printed
Speech by Sir James Crichton-Browne at the General Meeting of Members of the R.I. on 7th June 1915, concerning resolution proposed by Mr Gordon that funds of the R.I. "should be drawn upon to support the national effort".

[Henry George Percy, 7th Duke of] Northumberland to Lord Kitchener  DEWAR/DVIIa/2  19 June 1915

1 p

Contents:
Alnwick Castle typescript copy
Is enclosing copy of "excessively impertinent" letter sent to the Secretary of the Royal Institution by Colonel Turner.
Royal Institution has always been anxious to assist the War Office in every way in their power; that power is strictly limited by Act of Parliament and by the R.I.'s Charter. Thinks Turner has been misled by a Mr Gordon, who has made various attacks on the R.I.

[7th Duke of Northumberland] to War Office, Admiralty & Ministry of Munitions  DEWAR/DVIIa/3  6 July 1915

2/3 p

Contents:
Typescript copy
Is enclosing Resolutions as to possible scientific war service by the Royal Institution, which were passed by the Managers and unanimously approved by the members on 5th July.
With copy: DEWAR/DVIIa/4.
With copy of Resolutions: 1p, printed; DEWAR/DVIIa/5.

Admiralty to Duke of Northumberland  DEWAR/DVIIa/6  8 July 1915

½ p

Contents:
Printed & MS
Acknowledges receipt of letter about R.I. resolutions.

Ministry of Munitions (J.S.Davies) to Duke of Northumberland  DEWAR/DVIIa/7  9 July 1915

1 p

Contents:
Whitehall Gardens typescript
Acknowledges receipt of R.I. Resolutions. Conveys Lloyd George's thanks for offer of assistance. Lloyd George will be glad to avail himself of this when the opportunity arises.
With typescript copy; DEWAR/DVIIa/8

Royal Institution (E.H.Hills) to members  DEWAR/DVIIa/9  10 July 1915

2/3 p

Contents:
Albemarle St. printed
Is enclosing copy of Managers' Report to the General Meeting on 5th July, which embodies two Resolutions passed by the Managers and unanimously supported by the members present at the Meeting.
With copy of report setting out Resolutions concerning scientific war service by R.I.; 1p printed with MS note added by Dewar that resolutions were independently supported by the unanimous vote of Members present. DEWAR/DVIIa/10.

War Office (B.B.Cubitt) to Duke of Northumberland  DEWAR/DVIIa/11  10 July 1915

¼ p

Contents:
London typescript
Acknowledges receipt of letter and R.I. resolutions.

Admiralty (W.Graham Greene) to [Duke of Northumberland]  DEWAR/DVIIa/12  31 July 1915

1/3 p

Contents:
Whitehall typescript
Has placed before Lords Commissioners of the Admiralty and the Board of Invention and Research, letter of 6 July. The Lords Commissioners are grateful to the Royal Institution for its patriotic offer and will avail themselves of it should occasion offer.

Ministry of Munitions (N.E.V.Goold-Adams) to Secretary, R.I.  DEWAR/DVIIa/13  9 May 1916

1frac12; pp

Contents:
Westminster typescript
Ministry has been considering the question of the synthetic production of ammonia, nitrates and nitric acid for use in the manufacture of explosives. R.I. was suggested as a venue for research because of the equipment, designed and constructed by Sir James Dewar, which it possesses and which would lend itself to the study of the synthetic production of ammonia by catalytic methods at high pressures. Bearing in mind the Resolution of the Managers passed in July 1915, has no hesitation in asking that the laboratory and plant be placed at the disposal of the Department and that members of his staff be admitted to do the research in question. Trusts that in addition to these facilities, they would have the sympathetic co-operation of Dewar during the whole course of the work. May develop into a matter of national importance and of considerable magnitude and as such would be in keeping with the traditions of the Royal Institution to be associated with it.
With copy: 1p, printed; DEWAR/DVIIa/14
With notes of points which require elucidation by the Ministry: 1p, typescript & MS, and more detailed notes of points to be explained in letter of 9 May concerning synthetic ammonia, and points to be elucidated in subsequent correspondence with the Comptroller of Munitions Inventions; 3pp, printed. DEWAR/DVIIa/15 & 16.

[James] Dewar to Managers of R.I.  DEWAR/DVIIa/17  15 May 1916

2 pp

Contents:
Printed, with MS additions
Notes for Managers concerning request made by the Comptroller of the Munitions Inventions Dept. Request is not in accordance with terms of the Resolutions of 5 July 1915 because it purports to hand over to a Government staff the absolute control of the Professorial Laboratory; discusses this and the possibility of the Royal Institution Laboratory being able to add anything to the synthetic ammonia work of the German company, Badische. Building of an industrial plant need not be delayed as details of the construction and working are given in the Badische patents. Ammonia synthetic operations involve continuous day and night working and this would be impossible at the Royal Institution; comments on this.
With copy: DEWAR/DVIIa/18.

[H.G.Percy, 7th Duke of] Northumberland to James Dewar  DEWAR/DVIIa/19  16 May 1916

1 p

Contents:
Grosvenor Place typescript copy
Grieved that Dewar should be vexed by action of the Government and can understand how trying it must be to contemplate interference with Dewar's control of and work in the Laboratories where he has "so long reigned supreme". Must be seen as one of the hardships of War. Cannot see how the Managers could adopt any other attitude. "Any action which could by any possibility be represented as an exhibition of reluctance on our part to do everything in our power to assist the Government in the conduct of the War would have a bad and lasting effect upon the Institution." Interruption in normal work of the laboratories and expense of restoring them, though serious, are transient evils.
MS note added [by Dewar]: on 16 August Managers passed resolution inviting Comptroller and his staff to inspect the laboratories, in spite of the notes he addressed to the Managers on 15 May.
With copy of Northumberland's letter: DEWAR/DVIIa/20.

Royal Institution [E.H.Hills] to [N.E.V.Goold-Adams] Comptroller of Munitions Inventions  DEWAR/DVIIa/21  17 May 1916

1/3 p

Contents:
Typescript
Is enclosing resolution passed by the Managers. Asks to be put in touch with person who is to carry out the research, so that meeting and inspection of the laboratory can be arranged.
With Resolution passed at special meeting of the Managers, 16 May 1916, appointing a Sub-Committee to confer with the Comptroller and his advisers, to invite them to inspect the laboratories and to ascertain what is required for the proposed research and how the R.I. can best assist: ¾ typescript: DEWAR/DVIIa/22

Ministry of Munitions (N.E.V.Goold-Adams) to E.H.Hills  DEWAR/DVIIa/23  17 May 1916

1/3 p

Contents:
Westminster typescript
Can obtain services of Lieut. Greenwood. Suggests visiting the Royal Institution's laboratories on Friday morning. With typescript copy: DEWAR/DVIIa/24

Ministry of Munitions (N.E.V.Goold-Adams) to E.H.Hills  DEWAR/DVIIa/25  18 May 1916

1 p

Contents:
Westminster typescript
Acknowledges letter of 16 May enclosing Resolution passed by Managers of the Royal Institution. Understands that Tuesday afternoon has been suggested for the proposed inspection.
This will be convenient.
With typescript copy, with MS notes by Dewar: DEWAR/DVIIa/26.

James Dewar to Duke [of Northumberland]  DEWAR/DVIIa/27  18 May 1916

2 pp

Contents:
Typescript
Until the last week thought his future outlook was "quiet decline". Since the War, has avoided publicity but now fears he must "return to the fighting line and attempt to enlighten the public". Refers to his 1902 British Association address which will clarify the background of his moral attitude in scientific matters. His antipathy to what has happened is impersonal and originates from a desire to help the best interests of Science, the R.I., and the Nation.." This "fatuous research" cannot help the Government in the conduct of the War". Comments on the situation in which the Comptroller of Munitions Inventions demands use of his laboratory and asks why he should not be allowed to give the fruits of his invention alone, like other Professors, in the same way as when he worked on behalf of the Government on cordite. If the Minister of Munitions had suggested he might help the Government by directing his attention to synthetic ammonia, he would have replied that the laboratory stage of this study was past as it is now a successful industrial process; discusses this.
With typescript copy, 2½pp with added MS note [by Dewar]: Sent letter to a number of the Managers but not to Col. Hills and a few "mixed up in the organised cabal". Whole affair was engineered by Lord Moulton; comments on this. His threat of publicity "bust up the whole affair" but strained relations remain. DEWAR/DVIIa/28.

[James Dewar] to R.Clere Parsons  DEWAR/DVIIa/29  22 May 1916

1¼ pp

Contents:
Typescript
Committee will no doubt appoint Chairman and settle procedure before the arrival of the Comptroller and his advisers. Committee can proceed to elicit information in terms of the seven questions he has drawn up. In Comptroller's letter of 8 May, omits the Managers' reference "in relation to the present war" He also assumes that inspection of the laboratories will take place immediately, instead of the Comptroller and his staff being called in to confer with the Committee before any inspection takes place.

Royal Institution to James Dewar  DEWAR/DVIIa/30  22 May 1916

1/3 p

Contents:
Albemarle St printed & MS
Notice of Managers' Meeting to be held on 5th June.

Royal Institution  DEWAR/DVIIa/31  23 May 1916

1 p

Contents:
Typescript
Report of Sub-Committee appointed at the special meeting of the Managers held on 16 May 1916.
Comptroller of Munitions Inventions and his advisers visited the laboratories in connection with proposed reseach on the synthetic production of ammonia on a semi-industrial scale. Sub-Committee felt the research would not have any bearing on the prosecution of the present war. Dewar pointed out that space was too limited and close vicinity of valuable buildings made such work dangerous; apparatus was not suitable. Comptroller wrote letter withdrawing application to use the laboratory. Royal Institution still wishes to do anything that will assist in the conduct of the war.
MS note added [by Dewar] reporting on conversation with Secretary after the Managers Meeting, when the Secretary said he thought Dewar had made a mistake in the matter and could have sold his old plant at a large profit.
With typescript copy of report DEWAR/DVIIa/32 and printed copy, DEWAR/DVIIa/33

Royal Institution  DEWAR/DVIIa/34  23 May 1916

1½ pp

Contents:
Typescript
Minutes of meeting of Sub-Committee appointed at special meeting of Managers, held on 23 May. Quotes Resolution of 16 May setting out objects of Sub-Committee and gives summary of visit of Comptroller of Munitions Inventions to laboratories.
With list of points to be elucidated by the Comptroller concerning synthetic ammonia: DEWAR/DVIIa/35 (copy of DEWAR/DVIIa/16); and draft Minutes, 1p, typescript with MS additions [by Dewar], DEWAR/DVIIa/36.

Royal Institution  DEWAR/DVIIa/37  23 May 1916

3 pp

Contents:
Typescript
Report of conference between members of the Nitrogen Products Committee and staff of the Munitions Inventions Dept with members of the sub-committee of Managers of the R.I., to discuss the suitability of the resources at the disposal of the R.I. for research on the synthetic preparation of nitrogen compounds and for inspection of the plant and laboratories.
With typescript copy: 3½pp, DEWAR/DVIIa/38

Ministry of Munitions (N.E.V.Goold-Adams) to Secretary, R.I.  DEWAR/DVIIa/39  25 May 1916

12/3 pp

Contents:
Westminster typescript
Since their meeting has carefully considered proposal for research on the synthetic production of nitrogen compounds. Thought it important to emphasise the importance of the matter to the country in was and for subsequent peace purposes; comments on this. One of chief reasons why Royal Institution seemed particularly suitable for some of the experimental work was that Dewar's plant for compressing and manipulating gases would be useful in part of the research programme. "The discussion was centred on this one point which in consequence assumed an undue importance." Has considered the suitability of the apparatus and facilities of the R.I. and of the Davy-Faraday Laboratory for the proposed research and has discussed with his advisers points raised at the meeting; comments on this. Has concluded that it is wiser not to carry the negotiations further.
With copy: DEWAR/DVII/40 typescript, and printed copy, DEWAR/DVIIa/41.

Ministry of Munitions (G.Hutchins) to E.H.Hills  DEWAR/DVIIa/42  [n.d.]

¼ p

Contents:
Westminster typescript
Is enclosing Minutes of meeting held at Royal Institution on 23 May.
With copy of minutes, including copy of covering letter: 2½pp, printed, with MS additions [by Dewar] DEWAR/DVIIa/43 (copy of /37)

Royal Institution  DEWAR/DVIIa/44  30 May 1916

1/3 p

Contents:
Typescript
Note that Sir Robert Hadfield informed the Assistant Secretary that he had heard that negotiations with the Comptroller of Munitions Inventions had failed and that he regretted this. MS note added [by Dewar]: at later date, Dr Harker had asked the Hall Porter if he knew a man called Callender, who wanted a job.

Royal Institution (Henry Young) to G.Hucthins, Sec. to the Comptroller of Munitions Inventions  DEWAR/DVIIa/45  30 May 1916

½ p

Contents:
Typescript copy
Acknowledge receipt of letter and Minutes. Is enclosing copy of lecture of historical interest dealing with the general question of the synthetic production of nitrogen compounds.
Papers on the subject by Dewar appear in Proceedings of the Royal Society, 1879 and 1880.
With copy: DEWAR/DVIIa/46

Ministry of Munitions (G.Hutchins) to Henry Young  DEWAR/DVIIa/47  31 May 1916

1/3 p

Contents:
Westminster typescript
Acknowledges receipt of letter and paper. Asks if a copy of Dewar's papers on nitrogen compounds could be sent to the Department.
With copy: DEWAR/DV/a/48

Royal Institution (Henry Young) to G.Hutchins, Sec. to the Comptroller of Munitions Inventions  DEWAR/DVIIa/49  2 June 1916

½ p

Contents:
Typescript
Acknowledges letter. Dewar has no more copies of his papers [on nitrogen compounds]. Dewar's Royal Institution lectures appear in the Proceedings; this is sent to all major libraries.
With copy: DEWAR/DVIIa/50

Ministry of Munitions (G.Hutchins) to Henry Young  DEWAR/DVIIa/51  5 June 1916

1 p

Contents:
Westminster printed & MS
Acknowledges letter of 2nd June.

Royal Institution [E.H.Hills] to [N.E.V.Goold-Adams]  DEWAR/DVIIa/52  5 June 1916

½ p

Contents:
Typescript
Letter of 25 May was laid before the Managers at meeting on 5th June. While they recognise cogency of reasons which have compelled the abandonment of the proposal to carry out research in the R.I. laboratory, they wish to point out that this involves no departure from the terms of their Resolutions and no abatement of the desire of the R.I. to do anything to assist in the conduct of the war.
With copy: DEWAR/DVIIa/53.

[Henry George Percy, 7th Duke of] Northumberland to James [Dewar]  DEWAR/DVIIa/54  5 June 1916

2/3 p

Contents:
Roborough typescript copy
Acknowledges letter of 3 June. Has come to see his brother who has lost his only son in the "Queen Mary". Impossible for him to be in London or to act on Dewar's suggestion. Does not think their correspondence should be made part of the records of the Managers of the R.I.; comments on this. Session is over and there is no immediate necessity for further action. Trusts time will heal all differences.

James Dewar to Duke [of Northumberland]  DEWAR/DVIIa/55  7 June 1916

1 p

Contents:
Typescript copy
Never intended their correspondence or his own printed notes to be made part of the Managers' Minutes. Many documents bearing on important matters considered by the Managers are kept in the archives for historic reference; does not see why this custom should be abandoned. Announcement that letter of 16 May was "private and personal" came too late; his reply of 18 May made it clear that he felt that the matter in question was R.I. business. Does not understand the Duke's delay in making his attitude known. "The credit of my good name is all I care about in this world..." Is enclosing the letters in question for the Duke's reconsideration. As far as he is concerned they could be published tomorrow.

[Henry George Percy, 7th Duke of] Northumberland to James Dewar  DEWAR/DVIIa/56  10 June 1916

1½ pp

Contents:
Roborough typescript copy
Acknowledges letter of 7 June. Regrets he misunderstood Dewar in supposing he suggested their correspondence should be made part of the Managers' Minutes. Does not understand what he means when he says the announcement that the letter of 16 May was private, came too late; comments on this. In saying he regarded the letter as private and personal, meant that it was written as a letter between friends, not as the commentary of the President of an Institution on the merits of a transaction being considered by the Managers. Dewar's reply of 18 May does not make it clear that he took the opposite view; comments on this. Does not understand how an application from the War Office for use of the R.I.'s Laboratory can affect the credit of Dewar's good name. As long as he is President of the R.I., its archives shall be devoted to the promotion of scientific instruction and research and not be used "for recording the personal controversies of its officials with one another, or with the outside World". If Dewar has any injury to complain of, he may rely on his sympathy and support. At present he does not see that this is the case.

James Dewar to Duke of Northumberland  DEWAR/DVIIa/57  12 June 1916

¾ p

Contents:
Typescript copy
Argument developed in the Duke's letter of 10th June rests on false premises. The Duke surmises that his conscience pricks him because he used with his friends the Duke's letter of 16 May. What he did use was his own letter of 18 May saying he had determined on the public disclosure of chemical matters of national importance. Does not appear to have occurred to the Duke that his "good name" referred to his belief that the Duke thought the circulation of his (Dewar's) letter to interested persons was an ungentlemanly act, as the whole correspondence was "private and personal".

James Dewar to the Duke of Northumberland  DEWAR/DVIIa/58  19 June 1916

1¼ pp

Contents:
Typescript copy
Trusts his letter of 12 June was a sufficient explanation of the proper interpretation of passages in a previous letter; comments on this. The duke need not be concerned about the Archives being used to record personal controversies; comments on this.
Contested the Munitions application on broader lines than the Duke surmises. Has been "fighting indirectly for the position, stability and continuity of the Institution on the old lines that have resulted in a successful survival for more than a Century.
I intend to prosecute to the best of my ability, a similar course of action to the end of my career." His position is impersonal and cannot be helped in the way the Duke projected.

James Dewar to J.J.Thomson  DEWAR/DVIIa/59  17 Aug 1916

1 p

Contents:
Typescript copy
Is enclosing newspaper cuttings. From these, thinks Thomson will conclude that he was justified in recommending that laboratory research on synthetic ammonia should not be continued but that manufacture should begin using the patents of Haber and the Badische Company. Satisfying to see that an English company has come to the same conclusions. Presumes the Ministry of Munitions will wait until they see whether the Badische patents work or "will continue their futile and stupid scheme of unnecessary research".

James Dewar to the Duke of Northumberland  DEWAR/DVIIa/60  17 Aug 1916

2/3 p

Contents:
Typescript copy
Is enclosing press cuttings which may be of interest. In order to advise the Managers on sythetic ammonia, engaged a Patent Agent and concluded that the Government should use the Badische patents instead of continuing research. His opinion had been confirmed by the action of an English company. "This is only another illustration that the people have to lead the Government, in spite of the concerted knowledge of all the Scientific Talent that can be commandeered, and which is being so spaciously utilised by the Government."

James Dewar to James Crichton-Browne  DEWAR/DVIIa/61  23 Aug 1916

½ p

Contents:
Typescript copy
Is enclosing copy of the Duke's reply to the Badische letter. Cannot attend the British Association meeting. Hopes the outside work at the R.I. will be finished that week. The library is open.
With copy of letter from Duke of Northumberland to Dewar, 21 Aug. 1916, Alnwick Castle, ½ typescript, DEWAR/DVIIa/62
Thanks Dewar for letter and interesting press cuttings. Asks if Dewar is coming to British Association meeting at Newcastle. If so, he hopes they may meet. Is staying at Jesmond Dene House; comments on this.

Royal Institution  DEWAR/DVIIa/63  1916

2/3 p

Contents:
Typescript
Summary of negotiations with the Ministry of Munitions in connection with research on the synthetic production of ammonia.

James Dewar  DEWAR/DVIIa/64-71  May 1916

Contents:
Printed
Collection of privately printed papers concerning proposed munitions research at the Royal Institution. Copies of papers DEWAR/DVIIa/13, 16, 17, 21, 22, 23, 24, 33, 41, 43.

File b: War work  DEWAR/DVIIb  1917-18

Royal Aircraft Factory (H. Fowler) to James Dewar  DEWAR/DVIIb/1  29 March 1917

1/3 p

Contents:
S. Farnborough typescript
Are doing experiments to improve radium paint. Sir Joseph Thomson informed them of the collection of cathode ray tubes, containing different minerals, at the Royal Institution. As there is reason to think a number of minerals fluoresce in the same colours under cathode rays, would be grateful if Mr Lindemann might see the tubes.

R.T. Glazebrook to James Dewar  DEWAR/DVIIb/2  16 April 1917

2/3 p

Contents:
National Physical Laboratory, Teddington typescript
Aircraft authorities have asked them to test light alloys used in aircraft construction after exposure to extreme temperatures. Can do liquid air test if exposure to low temperature is not too long. Committee suggested maintaining specimens of alloys at low temperatures for weeks. Asks if Dewar has facilities at the Royal Institution for this. Comments on specimens.

Advisory Committee for Aeronautics (F.J.Selby) to James Dewar  DEWAR/DVIIb/3  20 April 1917

2/3 p

Contents:
N.P.L., Teddington typescript
Air Board has asked the Committee to arrange experiments to determine the effect of extreme cold, possibly long continued, on aluminium alloys. Work will be done at the N.P.L. and the Committee hopes to have Dewar's assistance. Understands from Dewar's letter to Glazebrook that he can probably help. Specimens should be ready before the end of next week.

Advisory Committee for Aeronautics (F.J.Selby) to James Dewar  DEWAR/DVIIb/4  25 April 1917

2/3 p

Contents:
N.P.L., Teddington typescript
Will bring Dewar's suggestion to Dr Rosenhain's attention. The number of test pieces will be over one hundred.

R.T.Glazebrook to James Dewar  DEWAR/DVIIb/5  8 May 1917

1¼ pp

Contents:
N.P.L., Teddington typescript
Is sending specimens for exposure to liquid air and programme of treatment to which they would like them subjected. In accordance with Dewar's suggestion, have duplicated some specimens. Comments on specimens.
With programme of treatment for bars to be sent to Royal Institution for exposure to liquid air: ¼ typescript & MS; DEWAR/DVIIb/6

R.T.Glazebrook to James Dewar  DEWAR/DVIIb/7  9 May 1917

¼ p

Contents:
N.P.L., Teddington typescript
Acknowledges letter of 8 May. Arrangements Dewar proposed are satisfactory.

R.T. Glazebrook to James Dewar  DEWAR/DVIIb/8  12 May 1917

¼ p

Contents:
N.P.L., Teddington typescript
Messenger will call on Monday as arranged. Should not be necessary to "trespass" on Dewar's kindness once present tests are complete. Will let Dewar know the results.

R.T.Glazebrook to [Royal Institution]  DEWAR/DVIIb/9  14 May 1917

¼ p

Contents:
N.P.L., Teddington typescript
Letter of authorization to hand bearer specimens for N.P.L.
Similar letter, 18 May: DEWAR/DVIIb/10

Advisory Committee for Aeronautics (F.J.Selby) to James Dewar  DEWAR/DVIIb/11  8 June 1917

2/3 p

Contents:
N.P.L., Teddington typescript
On behalf of Light Alloys Sub-Committee thanks Dewar for help with experiments to determine the effect of low temperatures on aluminium alloys. Is enclosing preliminary report. Further results after a month's exposure are awaited; improbable that they will modify conclusions drawn from the completed experiments.
With: Preliminary report on the influence of low temperatures on the tensile strength of cast aluminium alloys, by W. Rosenhain and D. Hanson; June 1917; 3pp, duplicated; DEWAR/DVIIb/12

Advisory Committee for Aeronautics (F.J.Selby) to James Dewar  DEWAR/DVIIb/13  11 June 1917

¼ p

Contents:
N.P.L., Teddington typescript
Acknowledges letter of 9 June. Has noted that remaining samples will be ready for the N.P.L. on Thursday next.

Advisory Committee for Aeronautics (F.J.Selby) to James Dewar  DEWAR/DVIIb/14  14 June 1917

¼ p

Contents:
N.P.L., Teddington typescript
Acknowledges letter of 13 June. Rosenhain will make arrangements to fetch the samples as soon as possible.

National Physical Laboratory (S.L.Archbutt) to Royal Institution  DEWAR/DVIIb/15  14 June 1917

¼ p

Contents:
Teddington MS
Letter of authorization to hand bearer aluminium alloy specimens.

Advisory Committee for Aeronautics (F.J.Selby) to James Dewar  DEWAR/DVIIb/16  16 June 1917

1/3 p

Contents:
N.P.L., Teddington typescript
Acknowledges letter of 15 June. Understands all the specimens have been returned to the N.P.L. Hopes results of the investigations will be of value. Will send Dewar copy of report.

Advisory Committee for Aeronautics (F.J.Selby) to James Dewar  DEWAR/DVIIb/17  19 July 1917

¾ p

Contents:
N.P.L., Teddington typescript
Is enclosing copy of completed report on effect of low temperature on aluminium cast alloys. On behalf of Light Alloys Sub-Committee thanks Dewar for his help.
With: Report on the effect of low temperature on some aluminium casting alloys, from the Metallurgy Dept of the N.P.L., presented by W. Rosenhain; July 1917; 17PP, duplicated; DVIIb/18.

William J. Green to James Dewar  DEWAR/DVIIb/19  18 Aug 1917

12/3 pp

Contents:
Mill Hill, N.W.7 MS
Is enclosing corrected proofs. With regard to the oxygen supply problem. thought of a simple development of the dropping pipettes; comments on this. With reference to McClellan's interest in liquid air plant and the possibility of the Langmuir pump not being quite suitable for valve exhausts, the illustration used in the 1914 lecture to demonstrate the efficiency of the molecular pump was the rapidity of solidif cation of oxygen. If Langmuir pump cannot do this, it is no improvement on the charcoal exhaust; discusses this. Merits of the improved charcoal method may not be properly appreciated in official quarters

Leonard Hill to James Dewar  DEWAR/DVIIb/20  19 Aug 1917

1 p

Contents:
Loughton MS
Was unable to call on Friday and is going to Skye to visit the German prisoners. Has asked his man to collect the apparatus. Thanks Dewar for his kindness and help.

James Dewar to Martin Flack  DEWAR/DVIIb/21  20 Aug 1917

2 pp

Contents:
Typescript
Understands Flack is to call tomorrow for a talk and to get some of the experimental metallic vessels; comments on this. Would like further information about the actual use of the machines in aeroplanes. Has observed much ignorance about the low temperature work done at the R.I. and the information the Germans have received about the use and application of metallic vacuum vessels. Is enclosing papers; comments on these. Information he has given is to help Government get the most satisfactory combination for delivering liquid oxygen at high altitudes; comments on this.

E.F. Harrison to James Dewar  DEWAR/DVIIb/22  29 Aug 1917

1 p

Contents:
Royal Army Medical College, London typescript copy
Thanks for letter with reference to charcoal. Is sending further sample which has had more prolonged heating. Their tests are not to ascertain the general absorbent power of charcoal, but its absorbent power for certain substances. Comments on sample he is sending.

James Dewar to E. Harrison  DEWAR/DVIIb/23  31 Aug 1917

2 pp

Contents:
Royal Institution typescript copy
Thanks Harrison for sample of charcoal. Comments on the improvement in the charcoal from 100 standard to 300. Pointed out to Harrison's colleagues that one standard of absorption does not necessarily show what a charcoal does to a variety of substances; comments on this. Would be interesting to know whether Harrison's charcoal has any absorption upon a minute quantity of nickel-carbonyl vapour diffused in air. Will be pleased to examine Harrison's sample when the Assistants return. For purposes of high exhaustion at low temperatures, it does not follow that the most absorptive charcoal is better.

James Dewar  DEWAR/DVIIb/24  2 Sept 1917

5¼ pp

Contents:
Printed Rough precis of information given by Sir James Dewar to Captain Flack for the use of the Air Board.
General points brought forward in interviews with Dewar, given personally to Major Filon, Dr Leonard Hill and Capt Finch at the Royal Institution, with experimental illustrations, liquid oxygen apparatus etc. Discusses metallic vacuum vessels and suggests improvements to the German apparatus, commenting on the supply of liquid oxygen in Germany and on the German molecular pump for high exhaustion.

Martin Flack to James [Dewar]  DEWAR/DVIIb/25  3 Sept 1917

2 pp

Contents:
Air Board Office, Strand MS
Thanks Dewar for all he has done for the Medical Research Cttee. Gives details of tests with the new vessel. They are preparing a series of vessels with small quantities of charcoal. Read Dewar's papers with interest. They made him regret the present tendency "to work in scientific 'water tight compartments'". Major Filon sends his thanks for information Dewar has given. Has summarised the information for use of the Technical Dept.

Martin Flack to James [Dewar]  DEWAR/DVIIb/26  5 Sept. 1917

¼ p

Contents:
Air Board Office, Strand typescript
Sorry to hear Lady Dewar has been so ill. Sent yesterday for the two pieces of apparatus made by Dewar and for the 10 litre flask but could not obtain them. Asks if these could be in the hall for his collection some time. Would like to do some further experiments.
Verso Dewar's reply, Brighton, 6 Sept. 1917; 2/3p, MS.
Flack has not kept his bond in placing on record the services rendered to his Department by the Fullerian Professor of Chemistry and his Laboratory staff at the Royal Institution. Until this is done, nothing more can be done during his (Dewar's) absence from duty. Should have mentioned this during Flack's absence. While he was in town, received several communications from Flack's Department but received nothing at Pitlochry.

Air Board Office (H.P.Harvey) to James Dewar  DEWAR/DVIIb/27  7 Sept 1917

1/3 p

Contents:
Strand typescript
Conveys thanks of Board for assistance given by the Fullerian Professor of Chemistry and his Laboratory staff at the Royal Institution in connection with investigations of liquid oxygen apparatus and places on record the appreciation of the Technical Department for the valuable services rendered.

Martin Flack to James [Dewar]  DEWAR/DVIIb/28  7 Sept. 1917

2 pp

Contents:
Air Board Office, Strand MS
Sorry the letter he wrote to Dewar at Pitlochry did not arrive. Had not asked the Controller to write to Dewar because he did not consider the matter finished. Had got a promise that such a letter would be written. In letter to Pitlochry expressed the thanks of Major Filon on behalf of the Technical Dept. and of himself on behalf of the Medical Research Committee. Letter from the Board has now been sent to Dewar. Will ask the Air Board Medical Research Committee to express its thanks to Dewar. Thanks Dewar for his help. Hoped to maintain Dewar's interest by reporting progress. Had planned to get the letters sent to Dewar when matters were approaching completion. Hopes Lady Dewar is better. Asks if he could get the German gauge and tube from the R.I.; wants them for models for the manufacturers.

James Dewar to [Martin] Flack  DEWAR/DVIIb/29  8 Sept. 1917

2¼ pp

Contents:
London MS copy
Has received letter addressed to him at Pitlochry that morning. Comments on Flack's proposed experiments and on the construction of the German vessels. Refers to patent rights. His only desire is to help the government. Does not expect even F.R.S, s to be acquainted with his "water tight compartment"; comments on this. Would like to see Flack's summary for the Technical Dept. Asks for information about liquid air vessels which Flack promised him. His wife's health is slowly improving.

[James Dewar] to [Martin] Flack  DEWAR/DVIIb/30  11 Sept. 1917

12/3 pp

Contents:
Brighton MS
Is sending apparatus; comments on this. In letter of 7th September, Flack's defence of his awkward position seems to rely on "that Curse of English Technical methods: and I may add of Govt [...] Com'ttees at the present time: of the craving for finality". National Physical Laboratory Committee did not wait but sent him results and reports during the research programme. Hopes to maintain his interest in scientific enquiry to the end and needs no exterior incentive such as Flack suggests.

Martin Flack to James [Dewar]  DEWAR/DVIIb/31  12 Sept. 1917

2 pp

Contents:
Air Board Office, Strand MS
Is enclosing synopsis of their interviews for criticism. Has not been able to get details of the German vessels in the North and is going to Durham to see if he can ferret things out for himself. Is busy with Major Dryer's apparatus which was devised in the field. Has received container of charcoal; loses about 50 grams per hour. Thanks Dewar for apparatus. Hopes he has received official letter from C.T.D.

James Dewar to [Martin] Flack  DEWAR/DVIIb/32  13 Sept. [1917]

2 pp

Contents:
Brighton MS
Is returning notes of exhaustion. Pleased Flack has started a complete examination of the German Storage Vessels in the country; comments on this. Sorry Flack had been unable to get a container better than that giving an evaporation of 50 grams per hour; comments on this. Will be interested in plan of Major Dryer's apparatus for use in the field; assumes this is for hospital and battle operations, not air warfare.

Military Aeronautics Directorate, Air Board Research Committee (C.B.Heald) to James Dewar  DEWAR/DVIIb/33  17 Sept. 1917

1 p

Contents:
Strand typescript
On behalf of the Committee thanks Dewar for the help given to Captain Flack in his endeavour to obtain an efficient oxygen apparatus for the use of the Flying Corps in the Field. Hopes the work was not too exacting and that Dewar will feel able to continue to assist them in future.

[James Dewar] to [Martin] Flack  DEWAR/DVIIb/34  17 Sept. 1917

1¼ pp

Contents:
Brighton MS
Hopes Flack received corrected notes; comments on these. The cost of Flack's container losing 50 grams per hour, with 3000 grams of liquid in it might be instructive.

Martin Flack to James [Dewar]  DEWAR/DVIIb/35  18 Sept. 1917

1 p

Contents:
Air Board MS
Is enclosing revised version of notes. Was to have had a trip up in the chamber with a reconstructed German apparatus but found the evaporating chambers were leaking. Hence the importance of Dewar's suggestion about joints.

[James Dewar] to [Martin] Flack  DEWAR/DVIIb/36  18 Sept. 1917

1½ pp

Contents:
Brighton MS
Their letters crossed. Pleased he had such a successful inspection of the liquid air Rescue Stations; comments on this. Loss of only 5 to 6 per cent per day shows very high efficiency as regards storage. Asks if Flack enquired about cost of the liquid air produced and what percentage of oxygen was in the liquid. Would like to have for examination one of the five containers which is out of order; comments on this. Thinks Flack is drawing the wrong conclusion about German knowledge. Will try to clarify the position when he receives Flack's notes again. As Flack is leaving Major Filon's Department, it is all the more necessary that his, Dewar's, position should be put right.

Martin Flack to James [Dewar]  DEWAR/DVIIb/37  19 Sept. 1917

¾ p

Contents:
Air Board Office, Strand typescript
Have patched up the German apparatus and hopes it is in a workable condition. Wants to take it up in the rarefaction chamber and compare it with the apparatus Dewar devised. Has no metal container for the transport of liquid air. Asks if might borrow the ten litre vessel.

Royal Institution (Henry Young) to C.B.Heald, Military Aeronautics Directorate, Air Board Research Committee  DEWAR/DVIIb/38  20 Sept. 1917

2/3 p

Contents:
Albemarle Street typescript
On behalf of [James Dewar] acknowledges Resolution recording help given to Captain Flack by the Professor and the R.I. staff.

[James Dewar] to [Martin] Flack  DEWAR/DVIIb/39  21 Sept. 1917

1¼ pp

Contents:
Brighton MS draft
The 10 litre container was in such bad condition that he left instructions that it should be reconstructed; comments on this. In the meantime, Flack could use glass vessels. Any experiments with the rarefaction chamber are the best Flack could use.

Martin Flack to James [Dewar]  DEWAR/DVIIb/40  21 Sept. 1917

1 p

Contents:
Air Board Office, Strand MS
Would like to give Dewar a better account of his work and wants to acquaint him with a point of some importance which has arisen. Asks if he might call to see Dewar next day.
Verso: notes by Dewar, about meeting with Flack on 22nd September; 1p, MS. Flack wanted him to take out a Patent concerning application to mines. He, Dewar, had authorised his Patent Agent to Proceed with claim for extension of charcoal Patent; comments on this. Told Flack he would have no objection to taking out Patent for use of liquid oxygen in mine or air apparatus; comments on this and on scientific information given to Flack. Wrote to Flack protesting about visits to R.I. by his assistant and request for interview with his, Dewar's, assistant, Mr Heath. Received Flack's report on visit to Durham and Northumberland Rescue Stations.

[James Dewar] to [Martin] Flack  DEWAR/DVIIb/41  24 Sept. 1917

1¼ pp

Contents:
Brighton MS
Has always said that the Air Board must have complete information about the production and storage of liquid air in the country. Comments on information which Flack has at present; he has not exhausted the enquiry by any means. Asks meaning of "life" of container.

Leonard Hill to James Dewar  DEWAR/DVIIb/42  25 Sept. 1917

2 pp

Contents:
London Hospital Medical College MS
Flack has told him about John Haldane and the liquid air people in Newcastle being after the credit of a new liquid air mine dress. Credit must be received by Dewar; comments on this. Need to adapt the apparatus so the liquid air cannot run into the evaporating chamber when the miner bends down, crawls or wriggles through narrow passages. Comments on results he has obtained with the radiometer, in connection with a comparison of the absorptive power of black and white skin.

Martin Flack to James [Dewar]  DEWAR/DVIIb/43  26 Sept. 1917

2 pp

Contents:
Air Board Office, Strand MS
Thanks Dewar for amended notes. Has made it clear that nothing can be done in Dewar's absence and that Grace is not to worry people at the R.I. Thanks Dewar for seeing him at Brighton. Has spoken to Dr Hill about the matter. Will have enquiries made about liquid air plants. Those referred to in report are only for mine rescue purposes. Comments on "life" of the container. Messrs Levick are able to make large containers; comments on this.

[James Dewar] to [Martin] Flack  DEWAR/DVIIb/44  27 Sept. 1917

1¾ pp

Contents:
Brighton MS
Comments on information which Flack should have obtained easily from the Liquid Air Rescue Stations. When Levick produces vessels, would be pleased to see them. Comments on pressure gauges and valves he wants. Has been engaged in Leonard Hill's problem; comments on this.

James Dewar to Capt. Finch  DEWAR/DVIIb/45  28 Sept. 1917

1 p

Contents:
Brighton MS
Would like samples of the pure copper and lead tubing. Supply of German silver tube is important if he is to aid the work of the Air Board. Refers to the specification.

William J.Green to [James Dewar]  DEWAR/DVIIb/46  29 Sept. 1917

4 pp

Contents:
Royal Institution MS
Coombs has had to leave London and hopes the delay in delivering proofs will be excused. Refers to preparation of abstract. Refers to bubble structures. Discusses results in connection with hydrogen and air interchange through 8½cm black film. Comments on the state of the hydrogen pump. The Hl2O3 charcoal has yielded a friable sample with little charcoal structure left. Only 260 ccs per gram is absorbed at liquid air temperature.

[James Dewar] to [Martin] Flack  DEWAR/DVIIb/47  30 Sept. 1917

2 pp

Contents:
Brighton MS
Does not understand why the liquefier is the problem. Air Board should know the main features and facts of every industrial plant in the country; discusses this. Is acquainted with Colonel Blackett's paper on the installation. Flack's plan of getting the ratio of charcoal to annular space is comic. If he had sent the vessel to the R.I., he, Dewar, could have given Flack a lot of information and returned it in good condition.

Leonard Hill to James Dewar  DEWAR/DVIIb/48  2 Oct. 1917

2 pp

Contents:
Loughton MS
Thanks Dewar for letter and good wishes for the skin investigation. Comments on reflection and absorption of black skin. Miners should have an oxygen supply to last at least two hours; discusses this and asks Dewar to consider the method of keeping down the temperature of the inspired air. Will ask Mr Davis of Siebe German Ltd to send Dewar a copy of the American Report. The new mining dress must not be given his name but must be the "James Dewar".

Leonard Hill to James Dewar  DEWAR/DVIIb/49  5 Oct. 1917

2 pp

Contents:
Loughton MS
Thinks the mining dress must be an enclosed dress with regeneration of the air breathed in by caustic soda; discusses this. Asks if the heat of the caustic soda can be overcome by the cooling power of the liquid oxygen. Comments on further skin experiments using an arc light and coloured screens. Barnard, the hatter of Jermyn Street, has been helping him with coloured film and different sources of light experiments. Shall look forward to discussing work with Dewar. Dewar has opened up for him a most interesting new field of enquiry. Comments on air raids. "Lady Dewar need not fear the safety of the lower floors of the Institution."

Leonard Hill to James Dewar  DEWAR/DVIIb/50  5 Oct 1917

12/3 pp

Contents:
Loughton MS
Did not answer Dewar's query about the charcoal and the dichlor sulphur ethyl. Absorbs very well but nothing will stop the blistering effect if it gets on the skin, but American cloth and a glazed surface will keep it off the skin. With miners, have to allow ten times the resting breathing volume to meet the hard work they must do; comments on this. Might arrange an iodine pentoxide respirator to absorb carbon monoxide and come into action when breathing was deep; comments on this. Might be able to get rid of the caustic soda and keep the air breathed cool.

[William J. Green]  DEWAR/DVIIb/51  5 Oct 1917

11/3 pp

Contents:
Davy Faraday Research Laboratory MS
Gives details of liquid air production and of hydrogen pumping for storage. With MS additions [by Dewar].

William J.Green to [James Dewar]  DEWAR/DVIIb/52  6 Oct. 1917

2½ pp

Contents:
Davy Farady Research Laboratory MS
Chain hung gimbals, supporting lead coil and 200gm weight, was found free in liquid air. Maximum distortion is in the upper two turns of the lead spiral; discusses this. With the lead tube down the centre of a copper spiral, the difficulty is accentuated. The path of the displacement of the lower end of coil so supported, will not be the circle of the flask inner wall and contact of end of the tube with the inner wall will not be maintained, so last of the liquid will not be delivered in all positions. Cooling has little effect on copper wire spiral. Has enclosed particulars of recent run for liquid air and hydrogen pumping [DVIIb/51]. Was unaware of the situation concerning the cleaning problem; comments on this. Does not know whether Harvey is regarded as primarily a Royal Institution perquisite, not readily liberated for cleaning the Davy Faraday.

Martin Flack to James Dewar  DEWAR/DVIIb/53  6 Oct. 191(7)

1 p

Contents:
Stamford Hill MS
Has been touring aerodromes. Received three letters from Dewar; these had been addressed to Capt.Finch. This explains why he could not always follow Dewar's letters. Will call at the Technical Department and see if any of the details Dewar wants have come.

Martin Flack to James Dewar  DEWAR/DVIIb/54  11 Oct. 1917

1 p

Contents:
[Stamford Hill] MS
Has 'phoned the Technical Department daily. Scale drawing is supposed to be on the way. There are no details of the rests of the liquid air plant in the country. Is rather out of touch with the situation.

E.H.Harrison to James Dewar  DEWAR/DVIIb/55  12 Oct. 1917

1/3 p

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript
Is sending two samples of charcoal which have had more prolonged heating. Will be interested to know if Dewar finds them superior to those previously tested.
MS note added [by Dewar] of results.

Martin Flack to James [Dewar]  DEWAR/DVIIb/56  1 Nov. 1917

1 p

Contents:
Air Board Office, Strand MS
Is sending rough notes which may require explanation when he arrives. Believes it in a success. Sir Watson Cheyne, Chairman of the new Flying Services Medical Advisory Committee, wants some oxygen administration. If Dewar can spare the apparatus, would like to show it to Cheyne.
With notes: Readings with new electrical method; 2pp. MS with ¼ p additional notes [by Dewar]. Dewar/DVIIb/57

Martin Flack to James [Dewar]  DEWAR/DVIIb/58  2 Nov. 1917

2 pp

Contents:
[Stamford Hill] MS
Showed Dewar's apparatus to Sir Watson Cheyne and to Fleet Surgeon Munday and others. The Technical Department has been experimenting with a similar apparatus at the National Physical Laboratory; comments on this. Thanks Dewar for his help. Asks if he might take the apparatus to France. Will call on Dewar next week.

Military Aeronautics Directorate, Flying Services Medical Advisory Committee (C.B.Heald) to James Dewar  DEWAR/DVIIb/59  9 Nov. 1917

2/3 p

Contents:
Air Board Office, Strand typescript
On behalf of Committee thanks Dewar for help given to Captain Flack with regard to liquid oxygen apparatus. Committee hopes to have the benefit of Dewar's assistance in future research.

Martin Flack to James [Dewar]  DEWAR/DVIIb/60  23 Nov. 1917

1 p

Contents:
Air Board Office, Strand typescript & MS
Has just received Dewar's letter of 21st. Thanks Dewar for demonstrating apparatus to Major Birley. Experiment concerning weight of oxygen for a five hour flight will be very valuable. Is collecting his experimental records to write up a report. Is trying to get his laboratory going. Tells Dewar to write to him at his private address.

Leonard Hill to James [Dewar]  DEWAR/DVIIb/61  5 Dec. 1917

2 pp

Contents:
Loughton MS
Has noted Dewar's remarks about the demonstration. The German instrument would be useful for treatment of gassed men, but is being kept secret by Filon and Co. Only way to get it made rapidly and in quantity is to put it in hands of a businessman. If he could show the German instrument to the Chemical Warfare Committee, he might get a move on. If Dewar would let Davis of Siebe Gorman have some interest in the future development of Dewar's patent, he might get going; comments on this. He can energise the Chemical Warfare people. Would like to borrow the instrument to show them and would like Dewar to teach Davis the "tricks of manufacture". Is getting a lot of interesting observations on radiant energy and black and white.

Leonard Hill to James [Dewar]  DEWAR/DVIIb/62  20 Dec. 1917

1 p

Contents:
Loughton MS
Has been thinking about Dewar's invention which solves the use of liquid oxygen for patients, miners and aeroplanists. Asks if Dewar would consider making over the right to patent the invention to the Medical Research Committee, the royalties to be used for the advancement of medical research; comments on this. Patent must be taken out to prevent the Germans exploiting it after the War. Comments on his son's health.

War Office (C.Romer) to James Dewar  DEWAR/DVIIb/63  22 Dec. 1917

¾ p

Contents:
Whitehall typescript
For instruments used in sound ranging in the field, the Atmos Lamp is used. Lamp is filled with argon gas and the General Electric Co. is unable to supply sufficient lamps because of the shortage of argon. Asks if Dewar could give advice or assistance so they can obtain the necessary argon.

Martin Flack to James [Dewar]  DEWAR/DVIIb/64  23 Dec. 1917

4 pp

Contents:
Stamford Hill MS
Sends seasonal greetings. Has been doing aerodrome work. Has had no more news from France about liquid oxygen. Things may get a move on now Lord Rothermere has taken a hand; comments on this. Has asked for figures and a report to be sent to Dewar from the Air Board. Has also asked for valves and gauges for Dewar. Thanks Dewar for his help and courtesy. Is angry that Dewar was not asked for more advice about specifications.

Martin Flack  DEWAR/DVIIb/65  [ca. Dec. 1917]

6¼ pp

Contents:
Duplicated
Report to the Air Force Medical Advisory Committee on the present position in regard to oxygen apparatus.

James Dewar to E.H.Harrison  DEWAR/DVIIb/66  25 Dec. 1917

½ p

Contents:
Typescript copy
Acknowledges letter of 24 December thanking him for his help in testing charcoal samples, and adding that one of the samples "appears likely to be of great practical value". Is he to understand that the utility of the highly absorptive charcoal is still in doubt and that in the meantime, the Anti-Gas Department "repudiate committing themselves to make further obligations in this matter".

E.H.Harrison to James Dewar  DEWAR/DVIIb/67  27 Dec. 1917

11/3 pp

Contents:
Royal Army Medical College, Anti-Gas Department typescript copy
Is at a loss to understand Dewar's letter of 25th and thinks there is some misconception. When it first seemed necessary to obtain supplies of highly absorptive charcoal, it was decided to initiate new experiments; comments on this, which led to production of very active charcoal. Large scale production was begun in January: comments on this. The charcoal selected was considered to represent a fair balance among the different properties required. More recently have done experiments to see how much further its absorptive power could be pushed and Leonard Hill suggested sending some more active samples to Dewar. Has been interested in results concerning absorptive property at low temperature. Have had no directions from Dewar about making highly absorptive charcoal and arrived at their process quite independently of any published work on the subject. Does not understand how letter conveyed idea that its utility was in doubt. Question whether they will use the more active samples depends on how far they can sacrifice other properties, especially hardness, in order to have the highest absorptive power.

Leonard Hill to James [Dewar]  DEWAR/DVIIb/68  27 Dec. 1917

12/3 pp

Contents:
Royal Institution MS
Has brought back apparatus Dewar lent him. The cool dry oxygen made the boy cough; comments on this. Is going to try Colonel Gordon's mixed vaccine.

James Dewar to E.H.Harrison  DEWAR/DVIIb/69  28 Dec. 1917

½ p

Contents:
Typescript copy
Asks if letter he received that morning is answer to his letter of 25 December and made with the approval of the Anti-Gas Department. Asks for list of members of the Anti-Gas Department as constituted in August 1917.

E.H.Harrison to James Dewar  DEWAR/DVIIb/70  2 Jan. 1918

1 p

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript copy
With reference to their conversation, looked up dates of experiments in gas retorts. Prolonged the heating of charcoal to 48 hours on 6 January 1917 and to 72 hours by March. Obtained more active charcoal. Heated the bulk of the charcoal for 30 hours because of hardness considerations. Does not think they tried longer than 72 hours until August, when was in contact with Dewar. Further extension of the time was only a development of what they had done months before. Has put the whole of the correspondence before General Thuillier, Controller of the Chemical Warfare Department, as he promised; comments on this.
With copy: Dewar/DVIIb/71

James Dewar to E.H.Harrison  DEWAR/DVIIb/72  3 Jan. 1918

1 p

Contents:
Typescript copy
Instead of answering his letter of 28 December, Harrison has adopted "a pernicious course of action", namely "after private conversation introducing evidence of Prior-User at this stage of the discussion, and then relegating the question at issue on incomplete data to General Thuillier for his judgment, making it appear as if I approved of this course of action". Wants to avoid bringing the General into the controversy. Asks Harrison to add this letter to correspondence given to the General.

Ministry of Munitions of War, Chemical Warfare Dept (H.F.Thuillier) to James Dewar  DEWAR/DVIIb/73  3 Jan. 1918

½ p

Contents:
Northumberland Avenue, W.C.2 typescript
On behalf of the Anti-Gas Committee thanks Dewar for advice about the production of charcoal at high activity. Committee has ceased to exist; functions now carried out by the Chemical Warfare Committee of which he is President.

James Dewar to H.F.Thuillier  DEWAR/DVIIb/74  4 January 1918

1/3 p

Contents:
Typescript copy
Acknowledges letter. Is enclosing copy of his letter to Colonel Harrison. Assumes Thuillier has not see it, otherwise he would have realised that the charcoal matter "cannot be disposed of by the corteous intrusion of a vicarious note of personal thanks, however graciously intended".

War Office (W.C.Hedley) to James Dewar  DEWAR/DVIIb/75  5 Jan. 1918

¼ p

Contents:
Whitehall typescript
Thanks Dewar for information and for offer of further assistance.

Leonard Hill to James Dewar  DEWAR/DVIIb/76  13 Jan. 1918

1½ pp

Contents:
Loughton MS
When he saw Dewar on Friday, had no knowledge of Dewar's correspondence with Harrison and Thuillier. Has since seen the correspondence. Has been member of the Anti-Gas Committee from the start and has memoranda on the prolonged heating of charcoal, submitted to the Committee and dating from 1916. Asks Dewar to let the matter rest until they meet; comments on this. Comments on Harrison, whom he thinks does his work "with singular accuracy and self-sacrifice". Required absorbent power of the charcoal used in the box respirator was obtained by experiments on prolonging the heating, long before he mentioned the subject to Dewar; comments on this. After he told Harrison of the facts Dewar gave him about charcoal experiments, further heatings were tried to secure an absorptive power of the highest order. No change was made in charcoal used in boxes, because required absorbent power for poison gases had been secured, combined with conditions suitable for packing and breathing through. The charcoal which Harrison sent to Dewar and which was the best for absorption, was too friable for use in the boxes.
With typescript copy: 1¼pp; Dewar/DVIIb/77

[Ministry of Munitions of War], Chemical Warfare Dept (H.F.Thuillier) to James Dewar; 1¼ pp  DEWAR/DVIIb/78  15 Jan 1918

1¼ pp

Contents:
Northumberland Avenue
Typescript copy
Thanks Dewar on behalf of the Chemical Warfare Committee, for his demonstration of the use of his liquid oxygen containers. Deferred writing in order to be able to tell Dewar of the situation regarding the possible use of the containers for military purposes. Discusses possible use for conveyance of oxygen to Field Hospitals at the Front, for use in connection with gas cases, and possible use of the principle of the containers in the design of portable breathing apparatus for use by men engaged in tunnelling at the Front. The Committee greatly appreciates the importance of Dewar's work.

James Dewar to H.F. Thuillier  DEWAR/DVIIb/79  17 Jan. 1918

¾ p

Contents:
Typescript copy
Thanks Thuillier for letter of 15 January. Is acting under a resolution of the Managers and Members of the Royal Institution offering help to the Government in the conduct of the war; comments on this. Will inform the Managers he has received the thanks of the Chemical Warfare Department for help in a physical chemical matter. Would be gratified if his work on thermos flasks could be usefully adapted to military purposes. Is enclosing precis of information given to Captain Flack about manufacture and use of vacuum vessels.

Leonard Hill to James [Dewar]  DEWAR/DVIIb/80  17 Jan. 1918

2 pp

Contents:
Loughton MS
Has borrowed from General Thuillier the file of correspondence between Dewar and Colonel Harrison, 1 August 1917 to 3 January 1918. Asks if he might come to discuss the matter with Dewar. He is to blame for failing to establish proper liaison between Dewar's "stores of learning and war problems which can be enlightened thereby". He communicated Dewar's information about charcoal to Harrison, not to the Anti-Gas Committee; comments on this. Recent correspondence resulted from Dewar's remarks to him that no acknowledgement had been made of Dewar's letter to Harrison; comments on this. Refers to health of his son.
With typescript copy: 1p.; Dewar/DVIIb/81

James Dewar to [Leonard] Hill  DEWAR/DVIIb/82  17 Jan. 1918

¾ p

Contents:
Royal Institution MS
Asks him to send correspondence submitted to the President of the Chemical Warfare Department by Colonel Harrison. He cannot "entertain argument not based on solid facts".
With typescript copy: 1/3 Dewar/DVIIb/83

Ministry of Munitions of War, Chemical Warfare Department (H.F. Thuillier) to James Dewar  DEWAR/DVIIb/84  19 Jan. 1918

¼ p

Contents:
Northumberland Avenue typescript
Acknowledges letter of 17 January and thanks Dewar for sending precis of information given to Captain Flack.

Leonard Hill to James [Dewar]  DEWAR/DVIIb/85  20 Jan. 1918

1 p

Contents:
Loughton MS
Is enclosing charcoal correspondence. Will come to the R.I. to look up Leslie cubes for his lecture. Vaccine seems to be working on his son.

Air Board Office, Technical Dept (Bertram G. Cooper) to James Dewar  DEWAR/DVIIb/86  1 Feb. 1918

¾ p

Contents:
Victoria Embankment, W.C.2 typescript copy
Would like advice in connection with the exhaustion of vacuum vessels. Comments on proposal to produce a vacuum by displacing the air in the annular space between the vessels with dry steam and sealing off. Have not found any definite quantitative results with water in the Patent specifications. Asks for information on this method of evacuation.

[James Dewar] to [Bertram G. Cooper], Air Board Office  DEWAR/DVIIb/87  2 Feb. 1918

1½ pp

Contents:
Typescript & MS
Acknowledges letter. Unless makes personal examination of notes of experiments at Cambridge and at the Davy Faraday Laboratory has no definite quantitative results with water used in the exhaustion of vacuum vessels. Suggests that the Air Ministry request that the Professor of Chemistry and his Staff, with a view to assisting the Government in the conduct of the war, should undertake the investigation they require; comments on this.

[James Dewar]  DEWAR/DVIIb/88  2 Feb. 1918

1 p

Contents:
MS
Notes on Government work done, referring to correspondence and to thanks received.

[James Dewar]  DEWAR/DVIIb/89  5 Feb. 1918

1 p

Contents:
MS
Note of discussion with F.W. Aston of the Royal Aircraft Factory, Farnborough, about liquid air supply.

Leonard Hill to James [Dewar]  DEWAR/DVIIb/90  7 Feb. 1918

1 p

Contents:
Loughton MS
Asks for copy of 1914 lecture in which Dewar gave details of rate of loss of liquid oxygen from big and small containers. General Thuillier wants the information in connection with supply of liquid oxygen to the Army Medical service.

[James Dewar] to Leonard Hill  DEWAR/DVIIb/91  7 Feb. 1918

2/3 p

Contents:
Royal Institution typescript
Explained the matter Hill is asking about for Thuillier, to a distinguished Cambridge graduate at the Air Board, who showed that he had not interpreted the methods properly. If this happens with a specialist, who will enlighten Thuillier? "Is it to be like the Ethylene problem, left in obscurity, although made in tons here years ago?"

Leonard Hill to James [Dewar]  DEWAR/DVIIb/92  14 Feb. 1918

1 p

Contents:
Loughton MS
Thanks Dewar for lecture. If Dewar does not help in the solution of Dewar container manufacture, nobody can. Is confident that if the liquid oxygen supply is determined one, Dewar will see that the containers are properly made and Siebe Gorman would do the work properly with Dewar's advice.
Verso: Dewar's reply, 15 Feb. 1918; 1/3 p, MS: heard from the Air Board that the containers are to be abandoned. His solicitor tells him the Germans want to purchase the rights for Sweden. Army Council came to see means of using liquid oxygen. Starling is on a Government Mission and cannot lecture. The Master of Trinity begins his course of lectures tomorrow.

War Office, Dept. of the Surveyor General of Supply (W.H.L.Harrington) to James Dewar  DEWAR/DVIIb/93  11 March 1918

¾ p

Contents:
Typescript
Committee No.5 (Medical Supplies), under Chairmanship of Sir Alexander Pedler, has been considering introducing the use of liquid oxygen for service in the field. Committee gladly accepts Dewar's offer of a demonstration of a thermos flask adapted for carrying oxygen. Suggests arrangements for this.

War Office (Alex Pedler) to James [Dewar]  DEWAR/DVIIb/94  8 April 1918

1¼ pp

Contents:
Westminster MS
Thanks Dewar for letter. Comments on plans for further demonstration [of liquid oxygen in the field].

Air Inventions Committee (A.Belton) to James Dewar  DEWAR/DVIIb/95  12 April 1918

1 p

Contents:
Strand typescript
Professor Barton Scammell has drawn the Committee's attention to an asphyxiating substance known as "Annihilite". Scammell says Dewar has special knowledge of the substance. Asks for information.
Verso: Dewar's reply, 13 April; ¼ p, MS: has never heard of "Annihilite" or of Barton Scammell.

War Office (Alex Pedler) to James Dewar  DEWAR/DVIIb/96  12 April 1918

½ p

Contents:
Stanhope Gardens, S.W.7 typescript
Is ill and has to work from home. When he is better, will consult Dewar about proposal for field trial of the oxygen apparatus.

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIb/97  22 April 1918

½ p

Contents:
Typescript
Interested in measures Dewar has taken to strengthen the flasks. Asks if demonstration could be given; comments on this and suggests date.

War Office (Eric Davies) to James Dewar  DEWAR/DVIIb/98  23 April 1918

½ p

Contents:
Whitehall typescript
Outlines arrangements for demonstration of apparatus.

[William J.Green]  DEWAR/DVIIb/99  26 April 1918

4 pp

Contents:
Royal Institution MS
Notes on glass and metal vacuum flasks.

[William J.Green]  DEWAR/DVIIb/100  29 April 1918

1 p

Contents:
Royal Institution MS
Notes on cost of glass vacuum flask fitted as syphon evaporator for oxygen and of copper-brass spherical evaporator.

[William J.Green]  DEWAR/DVIIb/101  April 1918

1 p

Contents:
Royal Institution MS
Notes of prices of vacuum flasks and refills.

[William J.Green]  DEWAR/DVIIb/102  April 1918

1 p

Contents:
MS
Notes of prices of glass vacuum flask fittings and of spherical copper vessel fittings, with note of time needed to make and fit these to flasks.

Ministry of Munitions (Reginald Bacon) to James Dewar  DEWAR/DVIIb/103  29 April 1918

1 p

Contents:
Westminster typescript
Would like to call to discuss research in connection with investigations being carried out by the Munitions Inventions Department. Asks Dewar to suggest time.

[James Dewar] to Reginald Bacon, Controller of Munitions Inventions  DEWAR/DVIIb/104  1 May 1918

¼ p

Contents:
Typescript
Suggests Bacon call any day after 6th May. No discussion relating to legal matters revealed to the Board by his solicitor can be entertained in the meantime.

Alex Pedler to [James] Dewar  DEWAR/DVIIb/105  1 May 1918

1¾ pp

Contents:
Stanhope Gardens MS
Had hoped to attend Annual Meeting of the R.I. but had to stay at another meeting. Thanks to Dewar had very successful field demonstration; thinks Medical Officers are convinced the method should be introduced at once.

William Beale  DEWAR/DVIIb/106  2 May 1918

5 pp

Contents:
Typescript & printed
Parliamentary Questions by Beale concerning the Haber process for obtaining nitrogen from the air: Patent protection; steps to make known any beneficial modification of the process in connection with production of fertilizer; commercial plant engaged in production of nitrogen compounds in Britain.

[War Office], Dept. of the Surveyor-General of Supply  DEWAR/DVIIb/107  2 May 1918

1½ pp

Contents:
Typescript
Minutes of 28th Meeting of Committee No.5 (Medical Supplies). With report on the use of liquid oxygen in the field, by E.F.
Mackenzie and L.Haden Guest; 6pp, duplicated; Dewar/DVIIb/108.

Ministry of Munitions (R.H.Bacon) to James Dewar  DEWAR/DVIIb/109  6 May 1918

1 p

Contents:
Princes Street, S.W.l. typescript
Suggests he call to see Dewar at 3pm on 8th May. Matter he wants to discuss has no relation to the legal matters to which Dewar referred in his letter.

[James Dewar] to Reginald H. Bacon  DEWAR/DVIIb/110  7 May 1918

1/3 p

Contents:
Typescript
Can see Bacon at 3pm on 8th. Interview must be regarded as purely private and confidential.

War Office (Alex Pedler) to James Dewar  DEWAR/DVIIb/111  8 May 1918

1 p

Contents:
Whitehall typescript
Is enclosing report of liquid oxygen trial [DVIIb/108] and minutes of meeting [DVIIb/107]. Another Committee meeting has been held at which it was decided that Mr Woolcock would contact the Home Office about the location and availability of large containers. He will also examine question of the supply of liquid oxygen. Would be an advantage if this could be provided in France. Is asking Woolcock to contact firms which should be able to make the containers when the specifications are ready. Would like Dewar's latest views on the specifications before their requirements are communicated to the trade.

Henry Briggs to James Dewar  DEWAR/DVIIb/112  8 May 1918

1 p

Contents:
Heriot-Watt College, Edinburgh
Typescript
In course of Government research on mine rescue apparatus, possibility of using liquid air or liquid oxygen in rescue apparatus is to be experimented on. Liquid air apparatus is already in use but the Research Committee thinks improvements may be made. Plan doing experiments using small Dewar flasks. Has been suggested some relief from difficulty of holding a permanent vacuum, may be got by filling vacuum space of small flask with pure CO2 which would freeze solid when air was poured into the flask; comments on this. Would be grateful for information about any tests Dewar might have done on this.

[James Dewar] to Henry Briggs  DEWAR/DVIIb/113  9 May 1918

2/3 p

Contents:
Typescript
Has conveyed full information about use and application of liquid oxygen to various Government Departments during the last nine months. Refers Mine Rescue Apparatus Committee to the Air Board Medical Committee and to the Surveyor General of Supply. No novelty in method of making a vacuum flask by displacing the air and filling it with easily condensable gas, but has not found the results satisfactory. No difficulty about holding a permanent vacuum. Before the War, the Germans secured an option to use his patent for the application of charcoal for the production of high vacuum, and have continued to use the process for vessels of all sizes.

War Office (W.J.Uglow Woolcock) to James Dewar  DEWAR/DVIIb/114  25 May 1918

½ p

Contents:
Whitehall typescript
Is enclosing copy of memorandum he is presenting to the Surveyor-General. Thanks Dewar for interview. Would like to call on him next week to hear his criticisms of the memorandum. Verso: Dewar's reply, 25 May; ½ p, MS: suggests time for Woolcock to call. Woolcock must come alone. Refers to object of the inspection. Would be helpful if he and Briggs could let him have precis of their interview on 24th.

[Ministry of Munitions of War, Chemical Warfare Dept]; H.F.Thuillier to Chemical Warfare Committee  DEWAR/DVIIb/115  19 Sept. 1918

1 p

Contents:
Duplicated
Asks that Committee consider enclosed memorandum. Comments on report from U.S.A. describing new organisation of the Chemical Warfare Services and comments on the United Kingdom organisation. Invites Committee to consider steps to be taken to secure a flow of recruits into the chemical profession and into chemical industries; comments on this.
With summary of report from the U.S.A. describing the new organisation of the Chemical Warfare Service; 5pp, duplicated; Dewar/DVIIb/116

Ministry of Munitions (J.A.Harker) to James [Dewar]  DEWAR/DVIIb/117  22 Oct ?1918

1 p

Contents:
Westminster MS
Wanted to discuss with Dewar scheme for nitrogen fixation, regarding which Clere Parsons has been in communication with the Comptroller of Munitions Inventions. Asks when he might call.

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIb/118  22 Nov. 1918

½ p

Contents:
Typescript
Acknowledges letter of 13 November. The four containers were used in transit by lorry and rail under service conditions. They have not subjected the German containers to such tests.

[James Dewar]  DEWAR/DVIIb/119  [ca.1918]

1½ pp

Contents:
MS
Notes giving chronology of correspondence and meetings with [Leonard] Hill and [Martin] Flack concerning charcoal absorption, August 1917.

[James Dewar]  DEWAR/DVIIb/120  [ca.1918]

1½ pp

Contents:
MS
Notes concerning work on charcoal absorption for Anti-Gas Committee.

File c: Admiralty Board of Invention & Research & others  DEWAR/DVIIc  1915-18

[James Dewar]  DEWAR/DVIIc/1  [March 1915]

½ p

Contents:
MS
Note of visit of James Charles Philip in connection with specimen of charcoal.

James Dewar  DEWAR/DVIIc/2  5 May 1915

1 p

Contents:
MS
Notes of visit of Prof. Baker on War Office business: wanted specimen of nickel carbonyl.

[James Dewar]  DEWAR/DVIIc/3  5 & 7 May 1915

1 p

Contents:
MS
Note of visit of Prof. Baker and of letter sent to Baker the same evening and of letter sent to Lord Moulton on 7th.
With copy of letter to Baker, 5 May, ½ p, MS: samples of nickel carbonyl were made under an old patent of his which passed into the hands of Ludwig Mond. Dewar/DVIIc/4.
With copy of letter to Moulton, 7 May; 2/3 p, MS: has seen Boys who has passed on Moulton's enquiry concerning corrosive gas. Boys will give Moulton his, Dewar's, views. Fears Moulton will not get Government to adopt suggestion. Dewar/DVIIc/5

[James Dewar]  DEWAR/DVIIc/6  17 May [1915]

¼ p

Contents:
MS
Note that Capt Lucas has arranged interview to discuss incendiary bombs.

James Dewar  DEWAR/DVIIc/7  5 Nov. 1915

1¼ pp

Contents:
MS
Notes of telephone conservations concerning request by High Explosive Department under Lord Moulton for the assistance of the Davy Faraday Laboratory with experimental work. Dewar comments that Laboratory is almost closed because of the number of staff who have left to go to War.

[James Dewar]  DEWAR/DVIIc/8  24/25 Nov. 1915

½ p

Contents:
MS
Note of enquiry from Colonel Hill about use of acetone in aircraft factories.

Royal Institution  DEWAR/DVIIc/9  5 July 1915

1 p

Contents:
Typescript copy
Extract from Managers' Minutes, 5 July 1915, concerning gift to the War Trades Committee for use in drug manufacture, of the Davy Faraday Laboratory's stock of ethylene dibromide.

B.Litherland Teed to the Secretary, Royal Institution  DEWAR/DVIIc/10  12 Aug. 1916

¾ p

Contents:
Naval Airship Station, Walney Island
Typescript
If the R.I. were to be approached by the Air Department, would they be willing to lend air liquefying plant for experiments on the purification of hydrogen? Wants to know if it will be possible to carry out the proposed series of experiments. Asks the maximum hourly production of liquid air by the plant.
With typescript copy: Dewar/DVIIc/11

James Dewar to B.Litherland Teed  DEWAR/DVIIc/12  16 Aug. 1916

1 p

Contents:
Typescript copy
Acknowledges letter of 12 August. Is enclosing Resolution of the Managers and Members concerning the offer of scientific assistance to the Government in the conduct of the War. Will be pleased to receive details of the proposed research. The Davy Faraday Laboratory has no low temperature plant. The installation he used for his low temperature work is old and inefficient and at best gives about twelve litres of air per house. There are larger, more suitable liquid air installations in the country.
With copy: DVIIc/13
With copy of Resolution, 5 July 1915: 1p, printed; DVIIc/14

B.Litherland Teed to James Dewar  DEWAR/DVIIc/15  17 Aug. 1916

¾ p

Contents:
Naval Airship Station, Walney Island
Typescript
Thanks Dewar for letter of 16 August. Whole question of carrying out an investigation using air liquefaction plant is under consideration. Is finding out whether it would be possible to carry out experiments within a short distance of the Admiralty. Thanks Dewar for information.
With typescript copy: 2/3 p; Dewar/DVIIc/16

Royal Institution (M.H. Crowhurst) to James Crichton-Browne  DEWAR/DVIIc/17  25 Aug. 1916

½ p

Contents:
Typescript
At Dewar's request, is sending copy of correspondence with Lieut. Litherland Teed. Dewar considers that if the same course of action had been adopted by the Managers and Secretary with regard to the Ministry of Munitions, it would have been equally successful.

Admiralty Board of Invention & Research (R.A.S. Paget) to James Dewar  DEWAR/DVIIc/18  29 Dec. 1916

2/3 p

Contents:
Cockspur St, S.W.
Typescript
Letter of 27 December addressed to Lieut James has been handed to him. Sorry there has been a misapprehension about position of Messrs Cossor. Copy of their letter was sent to R.I. as evidence that they made the suggestion on which the Board acted. Results of R.I. investigation will be equally available to all firms. Cosor cannot be described as "a third party to be considered in the negociations".

James Dewar to Richard Paget, Board of Invention & Research  DEWAR/DVIIc/19  2 Jan. 1917

1 p

Contents:
Typescript
In letter of 27 December to Board, stated that R.I. has nothing to do with genesis of any action taken by a Government Department concerning research at R.I., nor has it any interest in credit for the initiative and use to which Government might put any invention. Had no misapprehension concerning Cossor's application to the Admiralty. Did not understand motive underlying Lieut. James' letter on behalf of the Board to the Secretarial Department. "Nothing damps and renders inefficient the efforts of an Investigator more than the feeling of distrust." Does not want to repeat his cordite experience with the War Office.

Admiralty Board of Invention & Research (R.A.S.Paget) to James Dewar  DEWAR/DVIIc/20  3 Jan. 1917

1/3 p

Contents:
Cockspur St, S.W.
Typescript
Sorry Dewar is not clear about meaning of Lieut James' letter. Suggests he call to see Dewar to clarify this.

James Dewar to Richard Paget, Board of Invention & Research  DEWAR/DVIIc/21  4 Jan. 1917

2/3 p

Contents:
Typescript
Does not think a personal interview would remove his doubts but would aggrevate the situation; comments on this. Has already suggested quickest way of resolving the situation. Has nothing to add other than to acquiesce in the Board's decision and end the matter.

Admiralty Board of Invention & Research (R.A.S.Paget) to James Dewar  DEWAR/DVIIc/22  5 Jan. 1917

1¼ pp

Contents:
Cockspur St, S.W. typescript
Acknowledges letter of 4 January. Does not understand last sentence of letter. Apart from question of genesis of the idea, with which R.I. is not concerned, the position is that the R.I., by its resolution of 5 July 1915, requested Admiralty to contact Managers if there was any research with which the R.I. could assist in order to help the Government's conduct of the War. In accordance with this request, the Board has asked if the R.I. and Dewar would conduct an investigation to facilitate, if possible, the production of thermionic valves and other apparatus required for Admiralty purposes.. Asks if the decision of the Board to which Dewar refers, is the decision to request the R.I. to carry out this investigation.

James Dewar to Richard Paget, Board of Invention & Research  DEWAR/DVIIc/23  6 Jan. 1917

2/3 p

Contents:
Typescript
His use of the word "acquiesce" in letter of 4 January, has to be interpreted by reference to the whole of the communications between him and the Board from 6 December 1916 to 4 January 1917; comments on this.
MS note added: had interview on 11 Jan. with Sir D.J. Thomson from the Board. Board wished to meet Dewar's desires. Said the correspondence was clear about reason for his, Dewar's, objections. Read Thomson the correspondence with Messrs Cossor.

[James Dewar] to the Secretarial Department, R.I.  DEWAR/DVIIc/24  30 Dec. 1916

1 p

Contents:
Typescript
Dewar has had correspondence with the Admiralty Board of Invention & Research between 6th and 27th December. Until he has submitted correspondence to the R.I. Solicitors, cannot put the detailed correspondence to the Managers without a guarantee that it is acknowledged to be completely privileged.

[James Dewar] with Admiralty Board of Invention & Research  DEWAR/DVIIc/25  7 Feb. 1917

22 pages

Contents:
Printed
Copy of correspondence with the Board concerning the investigation of the production of high vacua by the use of charcoal and liquid air.

[James Dewar]  DEWAR/DVIIc/26  [ca.1917/8]

1 p

Contents:
Royal Institution MS
Directions for manufacture if metal vacuum flasks.

[William J.Green]  DEWAR/DVIIc/27  Aug. 1918

1 p

Contents:
Davy Faraday Laboratory MS
Notes of faults of construction or design in metal vacuum containers supplied by Levick, 1-3 August 1918.

[William J.Green]  DEWAR/DVIIc/28  [Aug. 1918]

2 pp

Contents:
Davy Faraday Laboratory MS
Notes on examination of Levick's (Birmingham) 25 litre liquid air containers.

[William J.Green]  DEWAR/DVIIc/29  Aug. 1918

4 pp

Contents:
Davy Faraday Laboratory MS
Notes on exhaustion and liquid air tests on Levick's 25 litre metal liquid oxygen containers, 2-10 August 1918.

[William J.Green]  DEWAR/DVIIc/30  [Aug. 1918]

1 p

Contents:
MS
Notes on tests on "Gilding metal", no.555, container; includes liquid air evaporation test.

[William J.Green]  DEWAR/DVIIc/31  [ca. Aug. 1918]

1 p

Contents:
MS
Details of liquid air containers: 25 litres (Levick). Summary of tests completed.

[William J.Green]  DEWAR/DVIIc/32  10 Aug. 1918

1 p

Contents:
Davy Faraday Laboratory MS
Notes of tests on Levick's arsenical copper vessel, No.546. MS note added [by Dewar], ¼ p.; comments on examination of a German metal container on 14 August.

[no title]  DEWAR/DVIIc/33  [ca. Aug. 1918]

2 pp

Contents:
MS
Notes giving details of reconstruction of Levick's arsenical copper vessel, No.546, and on tests done with reconstructed vessel.

[William J.Green]  DEWAR/DVIIc/34  [ca. Aug. 1918]

1 p

Contents:
MS
Notes of rate of loss from Siebe Gorman 2 litre oxygen evaporators, obtained 7 May 1918, and from a used evaporator from Capt.Bythum, 6 August 1918.

James Dewar to Captain Flack  DEWAR/DVIIc/35  2 Sept. 1917

5¼ pp

Contents:
Printed
Rough precis of information given by Sir James Dewar to Captain Flack for the use of the Air Board, concerning metal vacuum flasks.
MS notes added [by Dewar].

E.H.Harrison to James Dewar  DEWAR/DVIIc/36  1 Aug. 1917

¼ p

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript
At request of Leonard Hill, is sending the special wood charcoal made by the Department.

E.H.Harrison to James Dewar  DEWAR/DVIIc/37  23 Aug. 1917

¾ p

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript
Is sending further sample of birch wood charcoal with more prolonged heating. Additional heating adds to its absorptive power, but makes it too soft for their requirements. Hopes it will be of use to Dewar. Is preparing samples with longer heating and will send them to Dewar.

James Dewar to [E.H.Harrison]  DEWAR/DVIIc/38  24 Aug. 1917

½ p

Contents:
Royal Institution typescript copy
Thanks Harrison for sample of birchwood charcoal. Does not have the uniformity of previous samples as regards flaky character. Maintenance of temperature of 800°C to 850°C for long time gave charcoal of the highest absorption. His best products had twice the absorptive power of Harrison's sample. Suggests submitting sample of former kind of charcoal to same conditions to see if it becomes soft but more absorptive. Certain vapours are often condensed by a more active variety of charcoal.

E.H.Harrison to James Dewar  DEWAR/DVIIc/39  29 Aug. 1917

1 p

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript
Is sending further charcoal sample with more prolonged heating. Their tests are to ascertain its ascerbent power for certain substances only; comments on this and on activity of enclosed sample.

James Dewar to E.Harrison  DEWAR/DVIIc/40  31 Aug. 1917

2 pp

Contents:
Royal Institution typescript copy
Thanks Harrison for charcoal sample. He only needs small qyantities. Pleased the directions he gave to Leonard Hill and Captain Flack for improvement of Government Charcoal were correct; comments on this. Pointed out to Harrison's colleagues that one standard of absorption does not necessarily show what charcoal does to a variety of substances; comments on this. Would be interesting to know if Harrison's charcoal has any absorption upon a minute quantity of nickel-carbonyl vapour diffused in air. Cannot do any work at present because of the recess, but will look at sample when the assistants return. For purposes of high exhaustion at low temperatures, it does not follow that the most absorptive charcoal is best. Hopes Harrison will continue with the work, which will yield interesting results.

James Dewar to [E.H.] Harrison  DEWAR/DVIIc/41  1 Oct 1917

2/3 p

Contents:
Brighton typescript copy Has examined charcoal for absorptive power at low temperature and found that one gram absorbed 485cc at liquid air temperature; comments on this.

E.H.Harrison to James Dewar  DEWAR/DVIIc/42  2 Oct. 1917

2/3 p

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript
Thanks Dewar for information about charcoal specimen. Has had more samples prepared with longer heating and will send these to Dewar when he returns to the Royal Institution.

E.[H.] Harrison to James Dewar  DEWAR/DVIIc/43  12 Oct. 1917

1/3 p

Contents:
Typescript copy
Is sending two further samples of charcoal which have had more prolonged heating; comments on these.

James Dewar to E.H.Harrison  DEWAR/DVIIc/44  20 Oct. 1917

2/3 p

Contents:
Royal Institution typescript copy
Gives deta ls of absorptive power of samples of charcoal.

E.H.Harrison to James Dewar  DEWAR/DVIIc/45  24 Dec. 1917

¾ p

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript
Apologises for not acknowledging letter of 20 October. Thanks Dewar for testing charcoal samples. Sample No.4 has shown high power of absorbing kethal vapours and high activity as a catalyst. It seems likely to be of great practical value to them.

James Dewar to E.H.Harrison  DEWAR/DVIIc/46  25 Dec. 1917

½ p

Contents:
Typescript copy
Acknowledges letter of 24 December, thanking him personally for charcoal testing. Harrison says one sample is likely to be of great practical value. Is he to understand that the utility of the highly absorptive charcoal is still in doubt and that in the meantime the Anti-Gas Department "repudiate committing themselves to make further obligations in this matter".
Another copy at Dewar/DVIIb/66.

E.H.Harrison to James Dewar  DEWAR/DVIIc/47  27 Dec. 1917

11/3 pp

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript copy
Is at a loss to understand Dewar's letter of 25th. Discusses work on absorptive power of charcoal, commenting on information received from Dewar. Does not understand how his letter conveyed idea that utility of the charcoal was in doubt. Whether they use the more active samples depends on how far they can sacrifice other properties, expecially hardness.
Another copy at Dewar/DVIIb/67.

James Dewar to E.H.Harrison  DEWAR/DVIIc/48  28 Dec. 1917

½ p

Contents:
Typescript copy
Asks if letter of 27 December was reply to his letter of 25th and was made with approval of the Anti-Gas Department. Asks for list of members of Department as constituted in August 1917.
Another copy at Dewar/DVIIb/69

E.H.Harrison to James Dewar  DEWAR/DVIIc/49  2 Jan. 1918

1 p

Contents:
Royal Army Medical College, Anti-Gas Dept. typescript
With reference to their conversation, looked up dates of the experiments in gas retorts. Gives details of experiments on prolonged heating of charcoal. Does not think they tried heating for longer than 72 hours until August, when he was in contact with Dewar. Further extension of heating time was only a development of what they had done before. Has put whole of their correspondence before General Thuillier, as he promised; comments on this.
Typescript copies at Dewar/DVIIb/70 & 71.

James Dewar to E.H.Harrison  DEWAR/DVIIc/50  3 Jan. 1918

1 p

Contents:
Typescript copy
Instead of answering letter of 28 December, Harrison has adopted "pernicious course of action"; discusses this. Wants to avoid bringing General Thuillier into the controversy. Asks Harrison to add this letter to correspondence given to the General.
Another copy at Dewar/DVIIb/72.

Ministry of Munitions of War, Chemical Warfare Dept. (H.F.Thuillier) to James Dewar  DEWAR/DVIIc/51  3 Jan. 1918

½ p

Contents:
Northumberland Avenue, W.C.2 typescript copy
On behalf of Anti-Gas Committee thanks Dewar for advice on the production of charcoal at high activity. Committee has ceased to exist; functions now carried out by Chemical Warfare Committee of which he is President.
Original letter: Dewar/DVIIb/73

James Dewar to H.F.Thuillier  DEWAR/DVIIc/52  4 Jan. 1918

1/3 p

Contents:
Typescript copy
Acknowledges letter. Is enclosing copy of letter to Harrison. Assumes Thuillier has not seen it, otherwise he would have realised the charcoal matter "cannot be disposed of by the corteous intrusion of a vicarious note of personal thanks however graciously intended".
Another copy at Dewar/DVIIb/74.

Leonard Hill to James Dewar  DEWAR/DVIIc/53  13 Jan. 1918

1¼ pp

Contents:
Loughton typescript copy
Since he saw Dewar on Friday, has seen Dewar's correspondence with Harrison and Thuillier. Has memoranda on prolonged heating of charcoal, submitted to Anti-Gas Committee and dating from 1916. Asks Dewar to let the matter rest until they meet; comments on this. Comments on Harrison, whom he thinks does his work "with singular accuracy and self-sacrifice". Experiments to obtain the required absorbent power of charcoal in the box respirator by prolonged heating were done long before he mentioned the matter to Dewar; comments on this. After he told Harrison of the information Dewar gave him, Hill, about charcoal experiments, further heatings were tried to obtain the highest order of absorptive power. No change was made in the charcoal used in the boxes, because the required absorbent power for poison gases had been obtained together with conditions suitable for packing and breathing through. Charcoal which Harrison sent to Dewar and which was the best for absorption, was too friable for use in the boxes.
Original letter: Dewar/DVIIb/76

[James Dewar] to Leonard Hill  DEWAR/DVIIc/54  14 Jan. 1918

1 p

Contents:
Typescript
Has no time to consider question Hill raised. Wants to see copy of correspondence Harrison has submitted to Thuillier. Will substantiate everything he has said with adequate evidence. The matter would not have arisen had he not mentioned to Hill that he had received no acknowledgement for the information and work he had done concerning the production of a more absorptive charcoal than that which the Government had been using. To say the material produced according to his directions is not used or suitable, is irrelevant.

Leonard Hill to James [Dewar]  DEWAR/DVIIc/55  17 Jan. 1918

1 p

Contents:
Loughton typescript copy
Has borrowed from Thuillier the file of correspondence between Dewar and Harrison. Asks if he might call to discuss the matter. He is to blame for failing to establish proper liaison between Dewar's "stores of learning and war problems which can be enlightened thereby". He communicated Dewar's charcoal information to Harrison and not to the Anti-Gas Committee; comments on this. Recent correspondence resulted from Dewar's remarks to him that no acknowledgement had been made of Dewar's letter to Harrison; comments on this. Refers to health of his son.
Original letter at DVIIb/80.

[James Dewar] to Leonard Hill  DEWAR/DVIIc/56  21 Jan. 1918

2/3 p

Contents:
Typescript
Acknowledges receipt of the "charcoal correspondence". Hill is welcome to come and see the historica apparatus and to select what he wants for lecture. All reference to Government matters in dispute is to be barred from conversation in the meantime.

Military Aeronautics Directorate (C.B.Heald) to James Dewar  DEWAR/DVIIc/57  16 Nov. 1917

2/3 p

Contents:
Strand typescript
Acknowledges letter of 10 November in which Dewar expresses his willingness to help. Asks if Dewar would consider question of exact amounts of pure oxygen required at various heights; comments on this.

James Dewar to C.B.Heald, Military Aeronautics Directorate  DEWAR/DVIIc/58  17 Nov. 1917

2 pp

Contents:
Typescript & MS
Question Heald asked is a very pertinent one. He put the same question to the physiologists in July. The physiologists said that the metabolism as regards oxygen comsumption must be taken as the same under the normal conditions of the air surface. He made it a condition that the types of apparatus made there for aeronautical work must first be tested in the Admiralty Exhausting Chamber and lowered gradually until 12" pressure of mercury is reached; this is the equivalent of 25000 ft elevation. Discusses this. Captain Flack's experimental reports must contain complete information about the rate of oxygen supply needed at the equivalent elevations which would correspond to the pressures recorded in the Chamber; comments on this.

[James Dewar] to C.B.Heald, Military Aeronautics Directorate  DEWAR/DVIIc/59  19 Nov. 1917

2/3 p

Contents:
Typescript
In enclosed table has calculated the minimum oxygen supply in litres per minute measured at normal temperature and pressure, required at different elevations, from theoretical considerations. Comments on this. Would like a copy of the reports on Captain Flack's experiments.

Military Aeronautics Directorate (C.B.Heald) to James Dewar  DEWAR/DVIIc/60  20 Nov. 1917

¾ p

Contents:
Strand typescript
Thanks Dewar for oxygen table. Captain Flack has not made a report from the medical point of view; his previous results were taken by the Technical Department for mathematical calculations. Flack proposes to write up the work from the medical viewpoint. Will send Dewar a copy. Thanks Dewar for help.

Medical Research Committee (W.M.Fletcher) to James Dewar  DEWAR/DVIIc/61  1 Dec. 1917

½ p

Contents:
Strand typescript
Is sending copy of Committee's Annual Report. In this the Committee has thanked Dewar for his assistance to Leonard Hill. No mention has been made of Dewar's help to Hill and Capt Flack in connection with problems of flying at high altitude, because they were given to understand that this should be regarded as confidential at present. Asks if he might call to see Dewar to discuss questions relating to this, including commercial supply of oxygen for medical purposes.

Medical Research Committee (W.M.Fletcher) to James Dewar  DEWAR/DVIIc/62  20 Dec. 1917

¼ p

Contents:
Strand typescript
Thanks Dewar for sending copy of American Journal of Industrial Chemistry. Will read the article with interest. Hopes to have another talk with Dewar after Christmas.

Ministry of Munitions of War, Chemical Warfare Dept. (H.F.Thuillier) to James Dewar  DEWAR/DVIIc/63  15 Jan. 1918

2 pp

Contents:
Northumberland Avenue, W.C.2 typescript
On behalf of Chemical Warfare Committee, thanks Dewar for demonstration of use of liquid oxygen containers. Deferred writing in order to be able to tell Dewar of the situation regarding possible use of the containers for military purposes. Discusses possible use for conveyance of oxygen to Field Hospitals at the Front, for gas cases, and possible use of the principle of the containers in design of portable breathing apparatus for use by men engaged in tunnelling at the Front. The Committee greatly appreciates the importance of Dewar's work.
Copy of letter at Dewar/DVIIb/78.

James Dewar to H.F.Thuillier  DEWAR/DVIIc/64  17 Jan. 1918

¾ p

Contents:
Typescript copy
Thanks Thuillier for letter of 15 January. Is acting under R.I. Resolution offering help to the Government in the conduct of the War; comments on this. Will inform Managers he has received thanks of Chemical Warfare Dept. for help with a physical chemical matter. Would be gratified if his thermos flask work could be usefully adapted for military purposes. Is enclosing precis of information given to Flack on manufacture and use of vacuum vessels.
Another copy at Dewar/DVIIb/79.
With precis printed: 5¼ pp, printed; Dewar/DVIIc/65

Air Board Office, Technical Dept., (Bertram G. Cooper) to James Dewar  DEWAR/DVIIc/66  1 Feb. 1918

1 p

Contents:
Victoria Embankment typescript
Would like advice on exhaustion of vacuum vessels. Comments on proposal to produce a vacuum by displacing air in the annular space between the vessels with dry steam and sealing off. Have not not found any definite quantitative results with water in the Patent specifications. Asks for information on this method of evacuation.
With copy: Dewar/DVIIc/67. Further copy at Dewar/DVIIb/86.

James Dewar to [Bertram G. Cooper], Air Board Office  DEWAR/DVIIc/68  2 Feb. 1918

1 p

Contents:
Albemarle Street typescript copy
Acknowledges letter. Unless makes personal examination of notes at Cambridge and at R.I., has no definite quantitative results with water used in exhaustion of vacuum vessels. Suggests the Air Ministry request that, with a view to assisting the Government in the conduct of the war, the Professor of Chemistry and his staff should undertake the investigation; comments on this.
With copy: Dewar/DVIIc/69. Further copy at Dewar/DVIIb/87.

War Office (N.N.White) to James Dewar  DEWAR/DVIIc/70  13 Feb. 1918

1 p

Contents:
London typescript
The Army Council is considering the question of the use of oxygen in liquid form. Comments on this and asks if Dewar can assist them.

War Office (N.N.White) to James Dewar  DEWAR/DVIIc/71  23 Feb. 1918

¼ p

Contents:
London typescript
Acknowledges letter of 14 February. On behalf of Army Council, thanks Dewar for help concerning supply of liquid oxygen.

Air Inventions Committee (E.Pickles) to James Dewar  DEWAR/DVIIc/72  6 August 1918

¼ p

Contents:
Strand typescript
On behalf of Sir Horace Darwin, asks Dewar's advice as to utility of enclosed proposal.
With proposal from Major Teed that quantity of hydrogen which can be stored in a cylinder can be materially increased if coconut charcoal is first placed in cylinder: 2/3p typescript; Dewar/DVIIc/73.

James Dewar to Horace Darwan, Air inventions Committee  DEWAR/DVIIc/74  7 Aug. 1918

2/3 p

Contents:
Royal Institution typescript copy
Gives references to Royal Institution lectures, 1905 and 1906, on low temperature phenomena and on studies on charcoal and liquid air; discusses these. Hopes published results will enable them to reach decision on questions submitted.

Air Inventions Committee (Horace Darwin) to James Dewar  DEWAR/DVIIc/75  9 Aug. 1918

¼ p

Contents:
Strand typescript
Thanks Dewar for information which will enable them to settle the matter.

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIc/76  20 July 1918

2/3 p

Contents:
Typescript
Mr Woolcock has informed him of Dewar's offer of assistance in connection with liquid oxygen; comments on this. Thanks Dewar for his invaluable help to him and his Department in connection with that important problem.

James Dewar to [Andrew] Weir  DEWAR/DVIIc/77  25 July 1918

¾ p

Contents:
Royal Institution MS
Thanks Weir for letter. Will do all he can to help. His only regret is the slow progress because manufacturers are not sending them metallic vacuum vessels; comments on this.

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIc/78  26 July 1918

¼ p

Contents:
Typescript
Acknowledges letter. Is taking steps to ensure the metallic vacuum vessels will reach Dewar shortly.

[James Dewar] to [Andrew] Weir  DEWAR/DVIIc/79  27 July 1918

¾ p

Contents:
Royal Institution MS
Comments on vessels he needs. No English firm has made vessels of the quality of those exported by a Berlin firm in 1913-14. During the last year has given more detailed information to Government Departments on the subject than he ever gave to the Germans.

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIc/80  15 Aug. 1918

1 p

Contents:
Typescript
Understands 12 sample containers have been sent to Dewar by Messrs Levick and that Dewar is to report on these. Believes the containers will not be entirely satisfactory; comments on this. Vital that supply of liquid oxygen to armies in the Field should be achieved as soon as possible and that the apparatus should be as perfect as possible. Thinks it worth making a start with the inferior apparatus; comments on this. Hopes Dewar will be able to recommend adoption of some of the containers.

[James Dewar] to Andrew Weir  DEWAR/DVIIc/81  17 Aug. 1918

1¾ pp

Contents:
Typescript & MS
Hoped letter of 27 July would have removed impression that he is pedantic and petulant, causing delay by demanding superior apparatus. Aim was to copy and work up to the standard of the German apparatus in the first instance. Gives details of results of examination of the twelve five-gallon containers constructed by Messrs Levick. Disastrous results would not have occurred if the printed information he gave to Alexander Pedler had been scientifically understood and properly followed; comments on this. If specification had been submitted to him, he would not have have the damage and wasted time of the last fortnight. The four good vessels should be ready for transfer to Weir's Department on 19th; comments on this.

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIc/82  21 Aug. 1918

¾ p

Contents:
Typescript
Acknowledges letter. Regrets inconvenience Dewar has been put to in examining the twelve sample containers, but pleased that four of them might be satisfactory. Asks if Dewar would give him account of reasons why some containers are unsatisfactory. Levick worked in verbal consultation with members of the Medical Supplies Committee and no question of a definite specification arose for the small trial order. Appreciates need for one and this is being drawn up. Understands Dewar has received the liquid air.

[James Dewar] to [Andrew Weir]  DEWAR/DVIIc/83  [24 Aug. 1918]

2 pp

Contents:
MS draft
Weir's letter of 21st makes it clear that his appeal on a question of personal honour relating to War Office investigations has been "summarily interned". When Alexander Pedler was a colleague, he felt the War Office was giving a vigorous stimulus to research and invention and devoting the work of the R.I. Professor efficiently towards the War effort. As the state of affairs revealed by Weir must inhibit successful inquiry or invention, he must stop research on the subject. Can give no detailed memoranda showing reasons why some containers are not satisfactory. In essence the cause is bad design and workmanship. Gives details of liquid air lost per day from the four metallic containers. Hopes efficient containers will be produced and that the tests on the four exhausted containers will produce useful information.
With typescript draft: 24 Aug. 1918; 1¾ pp; Dewar/DVIIc/84

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIc/85  28 Aug. 1918

1¼ pp

Contents:
Typescript
Acknowledges letter and thanks Dewar for information about the containers. All members of his Committee recognise "that your great discoveries have alone rendered the projected scheme feasible". The work of the Committee will have seemed protracted; comments on this. Only a few minor questions have to be dealt with and there should be no need to trouble Dewar. Hopes they might refer any real difficulties to him. Dewar's discoveries are on the eve of being utilized in a good cause; comments on this and thanks him for his help.

[James Dewar] to [Andrew Weir]  DEWAR/DVIIc/86  2 Sept. 1918

11/3 p

Contents:
Royal Institution MS draft
Weir's letter of 28th August does not affect his judgement or his acts; comments on this. Correspondence with Weir's Department from 20th June shall remain inviolate. Does not intend to defend himself against certain objectionable features in letter. "Let us arrest further correspondence till deeds, not words, become the effective agents.." Refers to Patents issue, which has come before the Courts.
With typescript copy, 2 Sept. [?]; 11/3 p.; Dewar/DVIIc/87.

James Dewar to Andrew Weir  DEWAR/DVIIc/88  26 Oct. 1918

½ p

Contents:
Royal Institution typescript
Two cases have arrived from the General Electric Company of America containing the new Langmuir Mercury Vacuum Pump. This was wanted to compare its practical working with other high exhaust pumps. Is enclosing his correspondence with J.J.Thomson so Weir can decide what to do about the Langmuir. Asks the results of the usage tests on the four containers he exhausted. After three weeks, Comptroller of Munitions Inventions has written to say he proposes issuing an erratum slip cancelling the incorrect statement in the Monographs.

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIc/89  29 Oct. 1918

2/3 p

Contents:
Typescript
Thanks Dewar for letter and copies of correspondence with J.J. Thomson. Will have the Langmuir pump fetched. Dewar is welcome to look at the pump if he wishes. Will try to get a report on the results of the usage tests on the containers. Pleased an erratum slip is to be issued to cancel the paragraph Dewar told him about. It is the least which could be done.
Verso: MS draft of Dewar's reply of 31 October;

James Dewar to Andrew Weir  DEWAR/DVIIc/90  31 Oct. 1918

2/3 p

Contents:
Royal Institution typescript
Thanks Weir for offering him a chance to inspect the Langmuir Pump. Could not do adequate experiments in the time available. J.J. Thomson has a staff familiar with the workings of the Langmuir principle of exhaustion and might like to examine the commercial Langmuir.

James Dewar to Andrew Weir  DEWAR/DVIIc/91  4 Nov. 1918

2/3 p

Contents:
Royal Institution typescript
Applauds Weir's decision to hand the Langmuir Pump to the manufacturers for immediate technical use in the exhaustion of containers. Published research on high vacua is adequate. Refers to Ministry of Munitions' Monograph about the Oxygen Conference. J.J.Thomson would have done further research rapidly. Thanks Weir for offering to get information about the containers. Anticipated that deterioration might set in on use.

War Office (Andrew Weir) to James Dewar  DEWAR/DVIIc/92  11 Nov. 1918

1 p

Contents:
Typescript
Gives results of usage experiments on the four containers, one of which was made of gilding metal and the others of H.C. copper. They were subjected to the most strenuous usage.

James Dewar to Andrew Weir  DEWAR/DVIIc/93  13 Nov. 1918

½ p

Contents:
Royal Institution typescript
Deplores results of tests on liquid air containers but is consoled to think scientific anticipation has been substantiated. Asks if one of the German containers was similarly treated at the same time and stood the testing as well as no.557; this would be of great scientific interest. Congratulates Weir on his work in stimulating enquiry into the use of liquid oxygen for humanitarian purposes and diffusing amongst War Office officials a knowledge of the importance of chemical research into liquid gases.

[James Dewar] to [E.W.] Davies  DEWAR/DVIIc/94  [2 Aug. 1918]

1 p

Contents:
MS draft
The six vessels have arrived; comments on these. Specimens of smaller vessels made for air service should be available for examination. Siebe-Gorman vessel was not satisfactory. Woolcock says six firms are manufacturing.
With typescript copy (amended): 2/3p;, Dewar/DVIIc/95

[James Dewar] to [W.J.U.] Woolcock  DEWAR/DVIIc/96  [10 Aug. 1918]

1¼ pp

Contents:
MS draft
When Woolcock Took up Alexander Pedler's duties in May, he gave Woolcock certain printed documents he had placed at Pedler's disposal, including precis of the information given to Captain Flack in 1917. Asks in what way this information on the proper construction of metallic vacuum vessels has been utilized by the Department of the Surveyor General of Supplies in directing the manufacture of liquid air containers.
With typescript copies (amended): Dewar/DVIIc/97 & 98

War Office (E.W.Davies) to James Dewar  DEWAR/DVIIc/99  12 Aug. 1918

1 p

Contents:
Whitehall typescript & MS
An original German container from Messrs Levick will reach London that evening. Lieut. Bytham will ensure it reaches the R.I. immediately.
Verso: Dewar's reply 12 Aug. 1918; ¾p, MS. Never requested an original German container. Wanted a five gallon container made by Levick and used at the Mining Reserve Station; comments on this.
With typescript copies of Davies' letter and of Dewar's reply (2): Dewar/DVIIc/100, 101, 102.

[War Office] W.J.Uglow Woolcock to James Dewar  DEWAR/DVIIc/103  14 Aug. 1918

2 pp

Contents:
Teignmouth MS
Acknowledges letter of 10th August. Information Dewar gave to Capt. Flack has been used by the Dept of the Surveyor-General of Supply in directing the manufacture of liquid air containers. Information has been read but pamphlet has never been out of his possession. Information it gave was basis on which the containers were made.
With typescript copy: 1/3 p; Dewar/DVIIc/104.

[James Dewar] to Andrew Weir  DEWAR/DVIIc/105  7 Oct. 1918

1/3 p

Contents:
Royal Institution typescript
Is enclosing copy of letter to Comptroller of Munitions Inventions as it bears on the storage of liquid air and oxygen.
With copies: Dewar/DVIIc/106 & 107 and enclosure.

James Dewar to Comptroller of Munitions Inventions  DEWAR/DVIIc/108  5 Oct. 1918

2/3 p

Contents:
Royal Institution typescript
Acknowledges receipts of documents on the storaged and transfer of liquid air and liquid oxygen for war purposes. Draws attention to passage in which it is claimed he said that 12-15% loss per day on a five gallon liquid air container constitutes a "good vessel". Never made such an absurd statement. Considers a 5% loss a maximum allowance and has made vessels having a smaller loss.
With copies: Dewar/DVIIc/109 & 110

War Office (A.Weir) to James [Dewar]  DEWAR/DVIIc/111  9 Oct. 1918

1/3 p

Contents:
Typescript copy
Acknowledges letter. Read enclosure with interest and amusement. Wonders where writer got his information.
With copies: Dewar/DVIIc/112 & 113

Ministry of Munitions, Munitions Inventions Dept (A.E.Moore) to [James Dewar]  DEWAR/DVIIc/114  8 Oct. 1918

½ p

Contents:
Westminster typescript copy of printed postcard.
Acknowledges letter of 5th October.
With copies: Dewar/DVIIc/115 & 116

James Dewar to Comptroller of Munitions Inventions  DEWAR/DVIIc/117  19 Oct. 1918

½ p

Contents:
Royal Institution typescript
Surprised that after 14 days has only received printed acknowledgement of his letter of 5th October. Asks for an immediate definite reply.
With copies: Dewar/DVIIc/118 & 119

General Laboratory Notes  DEWAR/Box DBI  1864-1923

[James Dewar]  DEWAR/DBI/1  [ca. 1864-1881]

143 pp

Contents:
MS, with printed & MS inserts Laboratory notebook, 7¼" x 9", soft black cover. Includes
pp.1-2 miscellaneous jottings.
pp.3-5 sulphides of ethylene: thio-glycol ether.
pp.6-10 blank
pp.11 thio-glycol
pp.12-13 Facts on bases. Notes on lepidine, iridoline, chinoline, lutidine, pyrrol etc.; rings.
p.14 Bulletin of the Societe Chimique, Paris, July 1878: report of paper by Butlerov and Wischnegradsky on quinine and cinchonine.
p.15 notes on quinine; extract from paper by Hofmann which refers to Williams' work on cinchonine.
pp.16-17 quinine, cinchonine etc. Two loose pages inserted.
pp.18 note on isinglass and fibrin.
pp.19 vinyl compunds: sulphide of Vinyl, C2H3S.
pp.20-24 rough calculations
pp.25-27 mercaptan of vinyl, C4H3S.HS; with rough calculations.
pp.28 rough jottings
pp.29-31 26 Dec. 1864: action of HO2 and BaO2 on nitroprusside of sodium.
pp.32-33 C.acetate of vinyl; sugar investigations.
pp.34-35 sugar investigations.
p.36 miscellaneous calculations.
p.37 extract from paper by Dumas, 1868, on affinity - heat; rough notes.
pp.38-41 rough miscellaneous jottings and calculations.
p.42 SO3HCl reaction
p.43 sugar investigations
p.44 rough calculations
p.45 alloys
pp.46-47 decomposition experiments; extracts from literature.
pp.48-49 rate of CO2 evolution by man; radiation
p.50 decomposition; radiation
pp.51-53 light intensity
p.54 luminous lines in vapour of metals; distribution of heat in spectrum.
p.55 temperature & wavelength; radiation - alloys.
pp.56-57 luminous intensities. With 2 tracings of curves inserted.
pp.58-59 notes from Plateau and others concerning effect of coloured rays on the retina - for R.I. lecture.
pp.60-61 thermo-electric properties of hydrogenium; references to sources of certain research topics. With inserted page of calculations and copy of the Report of the British Association Committee, 1873, appointed for the purposed of determinating high temperatures by means of the refrangibility of the light evolved by fluid or solid substances (printed).
pp.62-3 relative space occupied by different coloured rays in the normal spectrum; luminous intensity.
pp.64 experiments on radiation at different temperatures.
p.65 temperature of electric are.
pp.68-69 radiation. With inserted, pp.66-7: 1846 Bakerian Lecture "On certain phenomena of Voltaic ignition and the decomposition of water into its constituent gases by heat", 6pp, MS, and 2pp notes; pp.68-9, 3pp calculations.
p.70-71 blank. Inserted: Notes of a course of seven lectures on electricity, at R.I. by Tyndall, 1875 (printed), and 2pp notes and calculations on radiation.
pp.72-104 blank
pp.105-7 rough calculations
pp.108-9 B picolinic acid
pp.110-11 organic analysis of carbopicolinic acid
p.111 picolinic acid
p.112 31 July 1868: calculations
pp.113-5 analyses and calculations - picolinic acid
pp.116-7 picolinic acid experiments and analyses.
p.118 analysis of Ba salt made from acid got from silver salt
p.119 volumetric analysis of Na salt.
pp.120-21 analysis of picolinic NH3 salt
pp.122-3 examination of bases left after action of Pen.Plan on picoline.
p.124 analysis of P2 salt of base got by distilling portion of picolinic below 135°C.
pp.125-6 calculations
p.127-30 cystine silver salt
pp.131-2 extracts from literature concerning sulphides of mono-atomic, bi-atomic and tri-atomic radicals.
pp.133-5 rough calculations
p.136 blank
p.137 conductivity
p.138 notes on paper by Bechamp, 1868, on exposure of C4H4O to air.
pp.139-43 rough calculations and notes on literature.
Inserted inside front cover: notes on content of volume, 1924.

James Dewar  DEWAR/DBI/2  1869-82

357 pp

Contents:
Edinburgh MS [various hands]
Laboratory notebook, 8¼" x 10", hard black cover, spine damaged.
Includes notes on:-
pp.1-5 rough jottings
p.7 session 1869-70: Chemical Lectures. Soaps.
p.8 report on laundry measures adopted in India.
p.9 analyses of two waters - soap test.
p.10 rough calculations
p.11 heat of solution of magnesium in dilute sulphuric acid
p.12 notes on aluminium
p.13-15 heat of solution of aluminium
p.16 blank
p.17 heat of potash solutions
p.18 blank
p.19 analyses of water from Alexander Annandale & Son Beltonford Paper Works, Dunbar, 24 Dec. 1869, and of samples of water from Burton and from Berwick on Tweed.
p.20 blank
p.21 analyses of manures and of waters from Morningside.
p.22 blank
p.23 analyses of Dr Maclagan's water and of Mr Moyes' brewery water.
p.24 blank
p.25 analyses of Mr Mackay's waters; composition of "Rigby bullet"; samples of ash or residue of bleach work mixed with lea"
p.26 blank
p.27 analyses of samples of ash and chloride of lime.
p.28 water analyses
p.29, 31 analyses of water samples from William Bunn, Strathpeffer, 28 April 1871, sample from J.Jamieson, Kirkcaldy, four samples for trial of Beardmore v. Downie before Lord Mure on 22 and 23 May 1871.
pp.32-3 analyses of water of St Mary's Loch and of Edinburgh water
p.34 Blank
p.35 analyses of water: St Mary's Loch, Tibbie Shield's spring water, Logan Lee and Glencorse.
p.36 analysis of Oban spring water
p.37 analyses of Nine Mile burn, Coates spring, Fairley Hope reservoir, Braid House burn, Swanston and Coniston water.
p.38 blank
p.39 analyses of two samples of water from James Leslie, received 13 July 1871, and analysis of deposit in water pipe received from James Leslie, 14 Oct. 1871.
pp.40-41 & 43 rough notes on experiments with bells [?vacuum expts].
p.44 hydrogenation of cystine by battery.
pp.45-6 alcohol radicals from coal tar
p.47 chinoline, 5 Feb. 1872.
p.48 experiments using pyrheliometer, including radiation of burning magnesium ribbon.
p.49 experiments on luminosities
p.50 blank
pp.51-2 notes on rates of cooling
pp.53-4 palladium
pp.55-6 dissociation of palladium and hydrogen
p.57 analyses of manures from Perth and of two brewery waters.
p.58 blank
p.59 analyses of waters from Edinburgh and Inverness
p.60 tension of CO4 in vacuo.
pp.61-3 palladium experiments
p.64 specific heat - palladium
p.65-6 specific gravity of palladium and hydrogenium in palladium plate; coefficient of expansion.
p.67-73 specific heat experiments; palladium
p.74 blank
p.75 explosion of electrolytic gas
pp.76-7 thermal value of iodine
pp.78-9 blank
pp.80-81 iodine experiments
p.82 notes from literature
pp.83-6 notes - Eulogy on Thomas Young, Smithsonian Report 1869.
p.87 notes on Wollaston and on Young.
pp.88-325 blank
Inserted between pp.88-89: 2pp of rough notes and calculations concerning polarity.
p.326 nobel's Col.Baker, 1 Nov. 1882: notes on capital and organisation of the Society.
pp.327-55 blank
pp.356-7 rough calculations.
Inserted inside front cover: 1p notes on resistance of wire and ½ p notes on calorimeter [hands unknown].

James Dewar  DEWAR/DBI/3  ca. 1881-2

103 pp

Contents:
MS [various hands] Laboratory notebook, 7" x 8¾", cover missing; many pages torn and incomplete - book damaged by explosion. Includes notes on
p.1 estimation of free and albuminoid ammonia in water no.8 from Dunse Burn, 28 Nov. 1881
p.2 blank
p.3 density of chlorine
p.4 rough accounts & notes
pp.5-8 blank
p.9 tungsten experiments
p.10 blank
pp.11-12 ammonia experiments
p.13 formation of free and albuminoid ammonia in water no.7 from Dunse Burn, Nov. 1881
pp.15-20 experiments on samples of ironstone and coals and shale from Mr Inglis, 29 Nov. 1881.
p.21 estimation of ammonia in Black Band from Mr Inglis, 5 Dec. 1881.
p.22 blank
p.23 testing for ammonia in the atmosphere of jars in which some samples from H.H.Inglis were kept, 6 Dec. 1881.
pp.24-5 estimation of ammonia in Black Band (equal parts of coal matter and Black Band) by treating it with water, 6 Dec. 1881.
pp.26-7 heating of samples from Mr Inglis - treatment with steam, 7 Dec. 1881.
p.28 blank
p.29 examination of sample from H.J.Clarke from coke ovens.
p.30 blank
p.31 estimation of ammonia by heating in steam, 10 Dec.1881.
p.32 results obtained with samples from Mr Inglis
p.33 estimation of ammonia by soda lime method, 12 Dec.1881 [page incomplete]
p.35 ratio between free and albuminoid ammonia, Dec. 1881
p.36 blank
p.37 analysis of Dunse sewage, 21 Dec. 1881
pp.38-40 blank
p.41 analysis of sample from Prof Dittman marked water from Beeslack Estate, 19 Jan. 1882.
pp.43-95 blank
pp.96-7 "useful notes"
pp.98-103 blank

James Dewar  DEWAR/DBI/4  ca. 1880-83

62pp + 118pp

Contents:
Inserted; MS [various hands] Laboratory notebook, 7" x 9". soft black cover. Includes
pp.1-3 purifying of graphite, 15 Oct. 1880.
pp.4-5 ozone, 4 Feb. 1880
p.5 hyposulphite of soda solution, 29 March.
pp.6-7 use of various metals to give telephone vibration.
pp.8-9 distillation of glycerine, chloride of zinc and chloride of ammonia.
pp.10-13 fog and cloud experiments
pp.14-16 ozone; electrolysis experiments; May 1881
p.17 blank
pp.18-24 photoelectric experiments, June 1881
Inserted pp.18-19: 1¼pp. rough calculations
pp.24-27 photoelectric experiments with aqueous solution of peroxide of chlorine
Inserted pp.24-5: 3¼pp notes on solutions used
pp.27-31 experiments with ammonionitrate of iron inserted pp.30-31: 12pp notes on coefficient of expansion, Van der Waals theory; relation between pressure, volume and temperature for carbonic acid, sulphurous acid, ammonia and ethylene; combustion of nitrogen, zinc, cadmium, hydrogen, explosive gas; action of electricity on flames.
pp.32-62 blank
Inserted at front of book
pp.1-12 notes on paper by A.Horstmann on the application of the second law of the theory of heat to chemical phenomena.
pp.13-21 notes on spectra from fluoride of boron, magnesium, calcium, strontium, barium, the oxygen group, the nitrogen group, silicon, boron, aluminium, fluorine
pp.22-24 blank
pp.25-6 hydrocarbon spectra
pp.27-8 experiments with Geisler tubes
pp.29-32 blank
pp.33-36 decomposition: notes from literature
pp.37-8 iodine - density
pp.39-40 combustion - notes on literature
p.41 blank
p.42 table: composition of coal and cannel gases (P.F. Frankland), 1882-4, printed; MS notes added [by Dewar].
p.43 blank
pp.44-5 notes on galvanic phenomena
p.46 blank
p.47 rough calculations; notes on polytechnics
p.48 blank
pp.49-50 dissociation of chloride of magnesium
pp.51-2 cystine (paper with Gamgee)
pp.53-55 notes on electrical action of different salts, peroxide of chlorine (gold poles), relative opacity of different fluids in glass cell, peroxide of chlorine (platinum poles), bichromate of potash
p.56 blank
pp.57-8 coal gas
p.59 crossley gas analysis
p.60 rough calculations
p.61 rough notes
p.62 diagram of apparatus
pp.63-66 rough notes, including notes on flames
pp.67-74 rough notes and calculations
p.75 composition from exhaustion; solution of NH3.
p.76 moutier formula
p.77 notes concerning specific heat
p.78 blank
p.79 relative electrical effect of retina and photographic plate.
p.80 blank
p.81 drawing of apparatus
p.82 rough notes
p.83 note on literature concerning heat for fusion
p.84 blank
pp.85-7 tension
p.88 thermal values
p.89-92 combination and decomposition
p.93 action of CO and CO2 on oxides of Fe.
p.94 blank
pp.95-6 oxides of Fe; SO2 and decomposition page torn.
p.97 NH3 [page torn].
p.98 blank
pp.99-102 lists of experiments with iron, lithium, titanium, magnesium, chromium and lead

James Dewar  DEWAR/DBI/5  ca. 1888-1901

240 pp

Contents:
MS; H.J. Orchard & Dewar
Laboratory notebook, 7¼" x 9", hard brown cover. Includes
p.1 latent heats calculated and observed
p.2 diagram of mirror and spectroscope; estimates of solar temperature
p.3 drawing of Bunsen's explosion apparatus; diagram showing ratio of saturated vapour to liquid in hydrochloric acid gas.
p.4 chart giving ratios between saturated vapour and liquid volume of HCl gas at different temperatures.
p.5 benzol diagrams
p.6 solar and stellar spectra; coloured spectra of metals (no diagram)
p.7 carbonic acid; dissociation
p.8 composition of carbonic oxide flame; diagram of apparatus for sucking gases from flame
p.9 diagram: carbonic oxide flame; diagram: dissociation of water.
p.10 radiation experiments
p.11 list of experiments; diagram of apparatus for density experiments
p.12 curves of various compounds (densities)
p.13 vapour densities
p.14 densities of petrachloride of phosphorus
p.15 list of experiments; diagram of apparatus for radiation experiments.
p.16 table of processes
p.17 production of nitrites; chlorine densities
p.18 curve of tension and dissociation of phosphorus, cyanic acid and mercury
p.19 Christmas course: Atoms, 1880-81. Diagram of Fouchault's pendulum; drawing of sand figures from pendulum
p.20-21 21 April 1882: notes for Friday Evening discourse on Deville; figure of the sun (Siemen's theory)
p.22 chemical decompositions; table of elements
p.23 mendelejeff's grouping of the elements
p.24 table of elements known at the present time
p.25 composition of the earth's crust; list of elements known 100 years ago.
p.26 refractive indices
p.27 dispersion
p.28 standard ultra violet lines (Mascart)
p.29 incident light normal to surface
p.30 spectrum of sum; light reflected by glass at different angles of incidence.
p.31 absorption by solar stmosphere
p.32 rate of pulsation of rays; refractive index of a liquid
p.33 ultra violet - sun spectrum (Mascart & Corner); deviation, depression and transmission of prisms.
p.34 light researches: list of observers
p.35 refractive indicies and coefficients of dispersion for benzol etc.; diagram - passage of ray through prism.
p.36 table of opacity and transparency of rock salt etc.
p.37 formulae for dispersion
p.38 curves of spectroscopes
p.39 list of molecular refractions
p.40 heat spectrum phosphorescence (Berquerel)
p.41 curves of ditribution of energy in sun's spectrum (Langley)
p.42 limit of spectrum colours; group of E in solar spectrum
p.43 spectra of hydrogen, lithium, magnesium and chromophase substance, with ratios of wave-length.
p.44 solar radiation
p.45 light radiation from platinum
p.46 drawings: improved form of Sprengel pump, Soret's fluorescent eyepiece
p.47 drawing of apparatus; notes on relative velocities
p.48 formation and decomposition of cellulose
p.49 palladium, hydrogen and occluded hydrogen; tension of hydrogen
p.50 thermoelectric relations of hydrogenium; specific heats
p.51 drawing of automatic prism adjustment
p.52 soap bubbles
p.53 Plateau's wire figure; drawing of apparatus for experiment of arc in gases.
p.54 notes: arc in gases
p.55 influence of pressure on reaction between carbon and hydrogen (Berthelot); synthesis of hydrocyanic acid and acetylene.
p.56 composition of acetylene gas medium at different times
p.57 synthesis of hydrocyanic acid and acetylene
p.58 acetylene: spectrum; synthesis
p.59 titles of works (heliodoros etc.)
p.60 elements and symbols of earth, water, air and fire
p.61 periods of chemical history
p.62-3 symbols - metals and related planets; abracadabra etc.
p.64 list of ancient authors (Hermes etc)
p.65 pressure of liquid oxygen; drawing of apparatus
p.66 production of ozone
p.67 volume/temperature graph (?ozone)
p.68 Leeds apparatus for ozone
p.69 table of boiling points below freezing point of water
p.70 effect of pressure on air; range of temperatures
p.71-2 temperatures & pressures: critical points.
p.73 drawing of apparatus; thermal effects of compression
p.74 table of temperatures and pressures of gases; formulae of fluid volumes.
p.75-6 formulae of gaseous laws, including diagram
p.77 density of gases in liquid carbon dioxide
p.78-84 gaseous compounds; production of molecular condensation; specific gravity.
p.85 general formulae of gaseous laws; velocities of gases
p.86 velocities of spheres and of molecules
p.87 pressure/volume diagram (Virral); movement of carbonic acid in air.
p.88 drawing of diffusion apparatus; relation between electric current and work, heat etc.
pp.89-90 thermal values
p.91 equivalents of electricity per molecule of salt
p.92-3 graphic formulae of the isomeric C3H12.
p.94 number of isomeric hydrocarbons
p.95 headings only - liquid gases.
p.96 liquid oxygen; temperature of space
p.97 drawing of apparatus (?compression pump).
p.98 range between critical point and boiling point
p.99 effects of natural gas and coal gas with different relative volumes of gas to air; gases - heat, evaporation
p.100 exports of petroleum and its products from the United States in 1883.
p.101 analysis of natural gas fuel in the environs of Pittsburgh
p.102 barometric pressure, altitude and temperature; heights of clouds.
p.103 interior of the earth - density.
p.104 elementary substances found in meteorites
p.105 section showing atmosphere and below sea level
p.106 diagram: path of meteors
p.107 gases of meteorites; meteoric irons
p.108 density of meteorites; meteoric stones
p.109 components of Alfranello meteorite
p.110 constituents of meteorites
p.111 volcanic products; velocities
p.112 relation between velocity in air and temperature; nomenclature.
p.113 chemical & electro chemical equivalents
p.114 comparison of measure of electric current strengths; drawing of Cowles electric furnace.
p.115 weight and tensile strength of metals; compression produced by moving spherical body.
p.116 graphite
p.117 chemical action of liquid oxygen; apparatus for measuring the velocity of light (Fizeau)
p.118 light researches - list of researchers with dates of major observations.
p.119 spectra of hydrogen, nitrogen, oxygen etc; diagram of apparatus for hydrogen reversal
p.120 families of elements; drawing of hollow carbon tube heated by arc.
p.121 ozone apparatus
p.122 headings only - spectra; hydrogen flames
p.123 fermentation by pure elliptic yeast; total atmospheric luminosity
p.124 solar radiation; relative chemical stablity
p.125 composition of sea water; world's production of soda, 1883.
p.126 raw materials of the alkali trade, 1886; diagram - products of pyrites and nitrate of soda.
p.127 reactions of ammonia soda process; chlorate manufacture; apparatus for showing gaseous phosphorescence, 8 June 1888.
p.128 evaporation and condensation
p.129 symbols for cloud forms; description of cloud forms
p.130 untitled diagrams
p.131 rate of falling of fine particles in air; sun power.
p.132 formation of cloud; total ponderable mass of atmosphere; drawing of steel tube for spectroscopic work
p.133 derivatives from methane.
p.134 oxidation - ammonia hydrate; types - hydrofluoric, ammonia, methane
p.135 list of papers by Joule.
p.136 joule's values of the mechanical equivalents of heat
p.137 list of Joule's joint investigations; list of methods of determining the mechanical equivalents of heat.
p.138 thermal effects of fluids in motion; temperature of body moving through the air
p.139 list of different kinds of energy; simultaneous synthesis of water and hydrochloric acid.
p.140 synthesis of HCl in presence of oxygen; velocity of flame propagation.
p.141 velocity of explosive wave
p.142 diagram of electrical circuit.
p.143 velocity of explosive wave; pressure from explosions.
p.144-5 gases - flame of bunsen at different heights.
p.146 temperature of ignition of gases
p.147 flames
p.148 time required to reach maximum pressure in explosive mixtures.
p.149 list of explosives; temperature of explosive gas mixtures; temperature of detonation.
p.150 dates of discovery of explosives; percentage composition of nitro compounds.
p.151 heat and volume of gas evolved during explosion; energy of explosives.
p.152-3 heat: general sources; diffusion; actions of heat
p.154 radiation; successive actions of heat on solid compound body.
p.155 temperature & heat - definitions, instruments for measuring; capacity for heat
p.156 linear and cubical expansion; fusing points; boiling points.
p.157 latent heats: fusion, evaporation.
pp.158-9 Flames
p.160 flames; absorption of carbonic oxide & other gases
p.161 energy of radiation; laws of radiation.
p.162 spectra of solids; elements in sun according to number.
p.163 elements in sun according to intensity; doubtful elements and elements not in solar spectrum.
p.164 elements in solid crust and in ocean.
p.165 chemical work of Faraday; organic research.
p.166 latent heat of vaporization of liquid CO2
p.167 critical density
p.168 magnetic relations of gases - Faraday & Becquerel.
p.169 curve of vapour pressures - nitrogen & oxygen.
p.170 refractive indices of liquid gases; pressure of mercury vapour; radiation at low temperatures.
p.171 specific resistance of alloys, metals and carbon.
p.172 blank
p.173 drawings of apparatus
pp.174-5 atmosphere; composition of air.
pp.176-7 thermal relations of moist air; correlation of pressure and elevation in the atmosphere.
p.178 drawings of the earth's calms (Thomson 1857 & Ferrel 1889); curve of pressure & height in the atmosphere.
p.179 list of discoveries about the air; breaking stress
p.180 thermal transparency; apparatus used with liquid oxygen.
p.181 coefficients of compressibility - liquids & gases
p.182 density of gases; Wiedemann - phosphorescence.
pp.183-4 phosphorescence (Darwin & Becquerel)
pp.185-6 list of papers by Dewar, 1878-1894.
pp.187-90 list of papers by Wroblewski
p.190-1 critical constants of hydrogen (Wroblewski); apparent density of liquid oxygen; density of liquid oxygen at its boiling point.
p.192 drawing of apparatus; heat cooled by compression of gases.
p.193 adiabatic expansion of hydrogen; rate of discharge through needle hole at different pressures. 1896
p.194 critical temperatures & pressures, 1896; apparatus.
p.195 new metallic carbides.
p.196 physical constants of liquid oxygen.
p.197 dielectric constant of liquid oxygen - apparatus.
p.198 wave lengths - oxygen gas and liquid (Liveing & Dewar).
p.199 vapour pressures
pp.200-2 electrical resistance of metals & alloys.
p.203-4 aerophile, 18 Feb. 1896 - analysis of sample of air taken at 15500 metres; boiling points of benzol, toluol, aniline, methane, aldehyde and ethane compounds.
p.204-5 drawing of apparatus for liquefaction of fluorine.
p.206 Halogens
p.207-8 air vacuum - exhaustion experiments
p.209-10 diagram of Pictet's results; drawings of apparatus
p.211 Platinum resistance thermometer; physical constants of liquid hydrogen and oxygen.
p.212 critical temperatures and pressures of gases; absolute temperatures at different heights.
p.213 vapour pressures at boiling point of hydrogen; drawing of apparatus.
p.214 temperature/resistance curve for air; diagram of apparatus.
p.215 new constituents of the atmosphere; physical constants of liquid hydrogen.
p.216 vapour pressure of liquid gases; molecular velocity and weight.
p.217 determinations of boiling point of hydrogen
p.218 drawings of apparatus
p.219 resistance of platinum
p.220 drawing of hydrogen thermometer
p.221 constant volume gas thermometers, March 1900; liquid atomic volumes, March 1900.
p.222 compression of gaseous hydrogen; density of hydrogen in different conditions, March 1900.
p.223 densities of gases; list of R.I. Professors. Summer 1900.
p.224 chemical & ionic solutions; Grotthuss theory. Summer 1900.
p.225 modern study of solutions; migration of ions. Summer 1900.
p.226 densities; Hinrich's theoretical atmosphere at high altitudes. 18 Jan. 1901.
p.227 gautier - hydrogen and marsh gas in atmospheric air; chief investigators of physical properties of gases. 18 Jan. 1901.
p.228 diagram: vapour pressures of liquid air; drawing of apparatus (Bakerian Lecture, June 1901).
p.229 diagram - pressure & volume in gases; critical temperature
p.230-3 drawings of apparatus
p.234 blank
p.235 drawing of apparatus
p.236 blank
p.237 electric resistance thermometry at boiling point of hydrogen.
p.238 blank
p.239 electric resistance thermometry
p.240 blank

James Dewar  DEWAR/DBI/6  ca. 1888-1916

365 pp

Contents:
MS various hands
Laboratory notebook, 7¼" x 9", hard brown marbled cover. Includes: inside front cover: printed table - uncondensable gas at 20 absolute; air nitrogen obtained in different ways. 1p
p.1 oxygen liquefaction lecture. Printed tables stuck in: composition of the earth (specific gravity of the metals), analyses of metallic meteorites.
p.2 latent heats, July 1901.
p.3 drawing of apparatus - mirror & spectroscope; estimates of solar temperature
p.4 Bunsen's explosion apparatus; ratio between saturated vapour and liquid volume of helium gas at different temperatures.
p.5 benzol
p.6 solar and stella spectra
p.7-9 carbonic acid; dissociation: heats of combustion, composition of carbonic oxide flame, apparatus for sucking gases from flame, iodine, water.
p.10 radiation experiments
p.11 relation of light and electricity - apparatus
p.12 Lime crucible for arc - drawings; Poullet's thermoelectric pyrometer - drawing
p.13 production of HCN in electric arc - drawing; density experiments, Fe bottle in crucible - drawing
p.14 curves of various compounds
p.15 vapour densities
p.16 densities of pentachloride of phosphorus
p.17 radiation experiment - drawing of apparatus
p.18 production of HCN - drawing of apparatus
p.19 table of processes
p.20 production of nitrites; chlorine densities
p.21 curve of tension of dissociation of phosphorus, cyanic acid and mercury
p.22 Hall's experiment on calcium carbonate - apparatus
p.23 diagram of Fouchon's pendulum (rotation of the earth)
p.24-5 notes for Friday evening discourse on Deville
p.25 figure of sun (Siemen's theory)
p.26 chemical decompositions; table of elements
p.27 Mendelejeff's grouping of the elements
p.28 table of elements known at present time
p.29 composition of earth's crust; elements known 100 years ago
p.30 chemistry; refractive indices
p.31 dispersion
p.32 standard ultra-violet lines (Mascart)
p.33 incident light normal to surface
p.34 spectrum of sun; light reflected by glass at different angles of incidence
p.35 absorption by solar atmosphere
p.36 rate of pulsations of rays; refractive index of liquid
p.37 ultra-violet - sun spectrum (Mascart & Corner)
p.38 deviation, dispersion and transmission of prisms; light researches - observers.
p.39 refractive indices and coefficients of dispersion; diagram - passage of ray through prism
p.40 opacity and transparency in ultra red, luminous, ultra violet.
p.41 formulae for dispersion
p.42 curves of spectroscopes
p.43 molecular refractions
p.44 becquerel's heat spectrum phosphorescence
p.45 Langley's curves of distribution of energy in sun spectum
p.46 visible spectrum
p.47 thermal spectrum
p.48 limits of spectrum colours; Group E of solar spectrum
p.49 magnesium group - solar spectrum
p.50-1 spectra of Na and K in the arc in CaO crucible; ghosts in diffraction spectra.
p.52 wave-lengths of hydrogen, lithium, magnesium and chromosphere substance
p.53 solar radiation
p.54 light radiation from platinum
p.55-8 drawings of apparatus including manometer on Siemen's carbon, Sprengel pump and Soret's fluorescent eyepiece
p.59 relative velocities
p.60 formation and decomposition of cellulose
p.61 notes on palladium, hydrogenium and occluded hydrogen
p.62-3 tensions of hydrogenium; thermo-electric relations of hydrogenium; specific heats. Drawing of automatic prism
p.64 soap bubbles
p.65 Plateau's wire figures
p.66 heading only
p.67 drawing of apparatus used for experiment on arc in various gases
p.68 arc in hydrocyanic acid gas, nitrogen and solutions of hydrogen and carbonic oxide
p.69 influence of pressure on reaction between carbon and hydrogen (Berthelot); synthesis of hydrocyanic acid and acetylene
p.70 composition of gas medium at different times
p.71 synthesis of hydrocyanic acid and acetylene
p.72 synthesis of acetylene; line spectrum of carbon
p.73 titles of works (alchemy)
p.74 list of elements, spirits etc (alchemy)
p.75 chronological table of discoveries (authors & alchemists)
p.76 periods of chemical history
pp77-8 symbols for elements and planets; abracadabra
p.79 list of authors (Hermes etc.)
p.80 headings only
p.81 apparatus for researches on liquid oxygen
p.82 pressures of liquid oxygen
p.83 drawing of apparatus [?ozone production].
p.84 production of ozone
p.85 comparison of oxygen and ozone
p.86 volume/temperature curves [?ozone/oxygen]
p.87 Leeds apparatus for ozone
p.88 boiling points below freezing point of water
p.89 effects of pressure on air; range of temperatures
p.90 critical points (temperature & pressure)
p.91 points of fusion
p.92 diagram of apparatus, 1903.
p.93 thermal effects of compression
p.94 temperature/pressure of gases; formulae of fluid volumes
p.95-6 formulae of gaseous laws
p.97 oxygen, nitrogen & hydrogen in liquid Co.
p.98-9 gaseous compounds; products of molecular condensation
p.100-4 notes on elements, including specific gravity
p.105 general formulae of gaseous laws; velocity
p.106 moving spheres and molecules
p.107 pressure/volume curve - Virral (Virial); carbonic acid
p.108 diffusion apparatus; relations between electric currents and work, heat etc.
p109-11 thermal values
p.112 equivalents of electricity per molecule of salt
p.113-4 graphic formula of isomeric C.H.
p.115 number of isomeric hydrocarbons
p.116 drawing of ethylene apparatus
p.117 curve - tensions of liquid gases
p.118 liquid oxygen
p.119 temperature of space
p.120 drawing of compression pump
p.121 drawing of apparatus
p.122 table of coal production in Great Britain
p.123 range between critical point and boiling point
p.124 thermo-electric diagram (Tait)
p.125 effects of natural gas and coal gas in different volumes of gas to air
p.126 gases - heat
p.127 exports of petroleum and its products from the United States in 1883
p.128 table showing comparative development of the petroleum industry in America and Russia, 1860-86
p.129 analysis of natural gas fuel in the environs of Pittsburgh
p.130 barometric pressure, altitude and temperature; heights of clouds
p.131 interior of the earth
p.132 elementary substances found in meteorites
p.133 section of atmosphere and below sea level; illustrations stuck in of volcanic ash, eruption of Cotopaxi, and thermograph
p.134-140 illustrations (cuttings stuck in) of the Pegu meteorite Burma, 1851; native iron in Greenland; eruption of Krakatoa; eruption of Vesuvius, 1822; Stromboli, 1874; crater lake at Kilanea; lunar Appenines; lunar Crater of Gassendi; terrestrial & lunar volcanic areas compared; crater of Vesuvius; resistance of air; heat; section of lava from Kilanea; section of deep sea deposit; sections of meteorites; glass cavities in minerals of meteorites; structure of Swedish bar iron kept at red heat
p.141 diagram of paths of meteors
p.142 gases of meteorites; meteoric irons
p.143 density of meteorites; meteoric stones
p.144 components of Alfianells meteorite
p.145 constituents of meteorites
p.146 volcanic products; velocities
p.147 relation between velocity in air and temperature; nomenclature
p.148 chemical and electrochemical equivalents
p.149 comparison of measures of electric current strengths; drawing of Cowles electric furnace
p.150 metals - tensile strength; compression produced by moving spherical body
p.151 graphites
p.152 apparatus for solidification of oxygen
p.153 chemical action of liquid oxygen; apparatus for measuring velocity of light
p.154 light researches - observers
p.155 spectra of hydrogen, nitrogen etc.; hydrogen reversal
p.156 families of elements; drawing of hollow carbon tube heated by arc
p.157 atomic weights
p.158 ozone apparatus; spectra of hydrocarbon, carbonic oxide, cyanogen and acetylene; drawing of iron tubes for explosions for spectroscopic work
p.159 spectra: hydrogenm lithium, thallium etc.
p.160 fermentation by pure elliptic yeast; total atmosphere luminosity
p.161 solar radiation; relative chemical stability, 12 April 1888.
p.162 composition of sea water; world production of soda, 1883
p.163 raw materials of the alkali trade, 1886; products of pyrites and nitrate of soda
p.164 reactions of ammonia soda process; chlorate manufacture; apparatus for showing gaseous phosphorescence, 8 June 1888.
p.165 evaporation and condensation; clouds, 1889
p.166 cloud forms
p.167 untitled diagram
p.168 rate of falling of fine particles; sun power
p.169 evaporation and condensation (crossed out); formation of cloud; total ponderable mass of atmosphere
p.170 drawing of steel tube for spectroscopic work; evolution of hydrocarbons from methane.
p.171 methane
p.172 absorption spectrum of 18 metres of oxygen at 90 atmospheres
p.173 list of papers by Joule
p.174 joule's values of the mechanical equivalents of heat
p.175 list of Joule's joint investigations; methods of determining the mechanical equivalents of heat
p.176 thermal effects of fluids in motion; temperature of body moving through air
p.177 different kinds of energy; simultaneous synthesis of water and hydrochloric acid
p.178 velocity of flame propagation
p.179-80 velocity of explosive wave; pressure from explosions
p.181-2 gases and flame of Bunsen at different heights
p.183 temperature of ignition
p.184 gases and flame of Bunsen (crossed out)
p.185 time required to reach maximum pressure in explosive gas mixture
p.186 explosives
p.187 temperature of explosive gas mixtures; dates of discovery of explosives.
p.188 composition of nitro compounds; heat and volume of gas evolved during explosion
p.189 comparison of finely divided metals
p.190 energy of explosives
p.191 note on diagrams: inserted pp.191-2 diagram of pump
pp.192-3 blank
p.194-7 notes on heat, for Christmas course, 1890-91
p.198 capacity for heat; linear and cubical expansion
p.199 fusing and boiling points
p.200 latent heats
p.201-2 drawings of flames
p.203 diagrams: wave lengths/molecular weights; solar energy
p.204 diagram: absorption of carbonic oxide, CO2 CS2 & OH2
p.205 energy of radiation; laws of radiation
p.206 spectra of solids
p.207 elements in the sun according to number and intensity
p.208 doubtful elements, elements not in solar spectrum and substances not yet tried
p.209 elements in crust of earth and ocean
p.210 chemical work of Faraday; organic research
p.211 latent heat of vapourization of liquid CO2.
p.212 density and critical density of various substances
p.213 magnetic relations of gases (Faraday & Becquerel)
p.214 curve showing vapour pressures
p.215 curves of specific resistance of alloys, metals and carbon
p.216 refractive indices of liquid gases; pressure of mercury vapour; radiation at low temperatures
p.217 drawings of apparatus
p.218-9 the atmosphere; composition of air (Stevens)
p.220 thermal relations of moist air (Stevens); correlation of pressure and elevation
p.221 elevation of balloon (Jordan)
p.222 diagrams (cuttings) of terrestrial calms (Maplestone); curve of pressure and height in the atmosphere
p.223 air - discoveries; breaking stress in metals
p.224 thermal transparency; drawings of apparatus used with liquid oxygen.
p.225 coefficients of compressibility in liquids and gases
p.226 density of gases at 15° C and 3000 atmos.; Wiedemann - luminosity (for Friday 18 Jan. 1895).
p.227 phosphorescent surface (Darwin)
p.228 phosphorescent bodies (Becquerel)
p.229 drawing of apparatus for studying photographic action at low temperatures, 18 Jan. 1895.
pp.230-1 list of papers by Dewar, 1878-1894.
pp.232-8 list of papers by Wroblewski, 1883-9; typescript & MS (pp.233, 235 and 237 blank)
p.239 critical constants of hydrogen (Wroblewski, 1889); apparent density of liquid oxygen
p.240 apparent density of liquid oxygen; density of liquid oxygen at its boiling point
p.241 drawing of apparatus; heat cooled by compression of gases
p.242 adiabatic expansion of hydrogen; rate of discharge through needle hole at different pressures.
p.243 critical temperatures and pressures of gases; drawing of apparatus
p.244 new metallic carbides
p.245 physical constants of liquid oxygen
p.246 dielectric constant of liquid oxygen - apparatus
p.247 liveing & Dewar - liquid oxygen
p.248 vapour pressures
p.249 diagram - electrical resistance of metals
p.250 electrical resistance of pure metals
p.251 electrical resistance of alloys
p.252 aerophile, 18 Feb. 1896 - air taken at 15500 metres; notes on boiling points benzol, aniline, toluol
p.253 notes on boiling points methane, ethane, aldehyde and benzoid aldehyde; apparatus for liquefaction of fluorine (cutting)
p.254 drawings of apparatus (printed cuttings), including that for examination of the least condensible portion of air
p.255 physical constants of halogen and halogen acids; heat of formation of halogen acids
pp.256-7 exhaustion experiments
p.258 Curve showing Pictet's results, April 1898; drawing of apparatus, April 1898
p.259 drawing of vacuum vessel, April 1898; apparatus for absorption of Rontgen radiation at low temperatures, April 1898.
p.260 platinum resistance thermometer; physical constants of hydrogen and oxygen. 20 Jan. 1899
p.261 temperatures & pressures. 20 Jan. 1899
p.262 vapour pressures and boiling point of hydrogen, 20 Jan. 1899; drawing of platinum resistance thermometer, Dec. 1898.
p.263 curve - electrical resistance of air, Dec. 1898; drawing of apparatus
p.264 new constituents of the atmosphere, 21 April 1899; physical constants of liquid hydrogen and oxygen.
p.265 vapour tensions of liquid gases, May 1899; molecular velocities and weights, 23 May 1899.
p.266 determinations of boiling point of hydrogen
p.267 drawings of apparatus; curve of electrical resistance of platinum
p.268 photograph (cutting) of apparatus - vapour tension, liquid hydrogen
p.269 constant volume gas thermometers; liquid atomic volumes. Friday evening, March 1900
p.270 comparison of gaseous hydrogen; density of hydrogen. Friday evening, Marcg 1900.
p.271 densities, Fri.eve., March 1900; list of R.I. professors for summer course 1900.
p.272 chemical & ionic compounds, mixed solutions; Grotthus theory. Summer course, 1900.
p.273 modern study of solutions; diagram of migration of ions. Summer course, 1900.
p.274 densities; Hinrich's theoretical atmosphere at high altitude. Friday evening, 18 Jan. 1901
p.275 Gautier - hydrogen and marsh gas in atmospheric air; chief investigators of physical properties of gases. For Friday evening "Gases beginning and end of century", 18 Jan. 1901.
p.276 curve - adiabatic cooling of air, vapour pressures of liquid air; drawing of apparatus. For 18 Jan. 1901
p.277 curve - pressure and volume in gases. For 18 Jan. 1901. notes on temperatures and boiling points, for Bakerian Lecture, June 1901
pp.278-81 drawings of apparatus - problems of the atmosphere.
p.282-3 electric resistance thermometry at boiling point of hydrogen
p.284 drawing of apparatus
pp.285-6 problems of the atmosphere: diagrams and notes concerning Ferrel's Table.
p.287 properties of gases
p.288 curve - fusion and vapourisation of water; curve - transformations of sulphur
pp289-90 drawings of apparatus
p.291-2 densities and mean coefficients of cubical expansion of solids at low temperatures; densities and specific volumes of O and N vapours at the boiling points of the liquids.
p.293 formulae of gaseous laws; water molecules
p.294 densities & specific volumes of O & N vapours at the boiling points of the liquids; drawing of apparatus
p.295 curve - expansion of water; percentage of hydrogen in different bodies
p.296 fumaroli gases, Mt Pelee, 1902; curve: natural numbers/frequencies
p.297-8 spectra of potassium and hydrogen
p.299 untitled diagram
p.300 constants of liquid gas calorimeters; liquid air calorimeters. For Friday 25 March 1904 "Liquid hydrogen calorimetry".
p.301 specific heat of diamond, graphites, ice & lead - notes and curve. For 25 March 1904.
p.303 specific heat; drawing of apparatus. For 25 March 1904
p.304 drawing of apparatus, for 25 March; molecular volume at the absolute zero, for Dissociation course
pp305-6 densities of solid O, N and H, for Dissociation course.
p.307 temperature/pressure curves
p.308 carbonate of lime - temperature & tension; heat
p.309 liquid air, latent heat, molecular absorption. For Friday, 21 Jan. 1905
p.310 coconut charcoal - absorption at 15° C and at boiling point of liquid (Hunter). For 21 Jan. 1905.
pp 311-2 helium and hydrogen absorption; heat evolution - charcoal absorption. For 21 Jan. 1905.
pp.313-4 drawings of apparatus
pp.315-6 hydrogen absorption by charcoal; theoretical mean density of gases in charcoal pores; amounts of neon and helium in atmospheric air. For Friday 8 June 1906 - "Studies on charcoal and liquid air".
pp.317-9 drawings: gases in charcoal - temperature of liquid air; benzol rings, mellitic acid; apparatus. For 8 June 1906
p.320 distillation of metals - Moisson's table, 1 June 1906.
p.321 circulation of helium gas mixtures in closed regenerator circuit.
p.322 heat evolution determined by change of pressure; gases in charcoal
p.323 rates of exhaustion; limits of charcoal exhaustion change of pressure with small concentration; adiabatic expansion of helium
p.324 change of pressure with small concentration; adiabatic expansion of helium
p.325 curves - charcoal exhaustion experiments
p.326 degrees of frost; liquid vapour pressures (for Friday 11 June 1909 - "Radium and helium".
p.327-8 pressures, liquid vapour pressures, new constituents of atmosphere. For 11 June 1909.
p.329 radium emanation; radioactive data. For 11 June.
pp.330-1 drawings of apparatus for Friday 21 Jan. 1910 - "Light reactions at low temperatures".
p.332 distance of plates from source of light giving same photographic intensity; rare gases in atmosphere. 1910
p.333 rare gases in atmosphere; chemical reactions. 1911
p.334 melting points. For Friday evening, Jan. 1911
p.335 sulphur. For Jan. 1911.
pp.336-7 drawings of apparatus, for Jan. 1911.
p.338 practical limits of gas thermometers; corresponding temperature relations. 1912
p.339 limits of temperature by evaporation; liquid volumes of helium. 1912
p.340 liquid volumes of hydrogen; mean atomic specific heats between 20'ab. and 90' ab. 1912
p.341 gas thermometers: drawing and curve. 1912
p.342 temperatures and pressures of gases: curve. 1912
p.343 specific heat of hydrogen apparatus. 1912
p.344 atomic specific heat; drawing of liquid hydrogen calorimeter. June 1913
p.345 uncondensable gas at 20' absolute. 23 Jan.1914 - "The coming of age of the vacuum flask.
p.346 respired air uncondensable at 20° absolute. 23 Jan. 1914
p.347-8 uncondensable air at 20° absolute. 23 Jan. 1914.
p.349 drawing of apparatus for 23 Jan. 1914.
p.350 uncondensable air at 20° abs.
p.351 liquid hydrogen cooling with and without high exhaust; Moureu's experiments (1913) - rare gases in thermal springs and fire damp. For Friday 22 Jan. 1915 - " "Problems of hydrogen and the rare gases".
p.352 curves: platinum tube - hydrogen diffusion; experiments on total amount of hydrogen, helium and neon in air. For 22 Jan. 1915
p.353 proportion of helium, neon and hydrogen in air; gases in air- uncondensable at 20° Ab. For 22 Jan. 1915
p.354 mixtures of hydrogen with nitrogen and carbonic oxide, high exhaust at 20° Ab. For 22 Jan. 1915
pp.355-6 drawings of apparatus for 22 Jan. 1915 and for Jan.1916 (problems in capillarity).
pp.357-8 curves: diffusion of gases through india rubber membranes at different pressures and temperatures; graded black film - critical stage. Jan. 1916
p.359 rate of fall of black line; black spot in thin liquid films. Jan. 1916
p.360 soap film colours (Herschel); surface tension. Jan. 1916
p.361 curve (cutting): diffusion of gases through india rubber membranes; drawings of apparatus (cutting), Jan. 1916
p.362 drawings for lantern slides for Friday lecture, Jan. 1916 - capillarity
p.363 blank. Inserted between pp.363-4: sudden development of black in 40 cm bubble; notes on bubbles; drawings of apparatus; contraction of black H bubble; permanent soap bubble; 3pp + 1p blank.
p.364 Friday Evening Discourses: list, 1881-1922
p.365 notes for lectures, Jan. 1906
Inside back cover: note on silvering solution
[Much of information in DBI/6 is duplicate of that in DBI/5.]

W.J.Green  DEWAR/DBI/7  March-Christmas 1922

88 pp

Contents:
Royal Institution MS
Laboratory notebook giving weekly summary of work, 6¾" x 8", soft black cover. Includes:
p.1 title page
pp.2-3 week commencing 26 March 1922: black development in soap-glycerin films; pointolite illumination of films; liquid air plant.
pp.4-7 week commencing 2 April: isolation of liquid oxygen calorimeter; soap-glycerin films; pointolite; electrolytic blacking of ring.
pp.8-9 week commencing 9 April: soap films
pp.10-11 week commencing16 April: soap films
pp.12-13 week commencing 23 April: soap films - tri-ethylamine oleates of different concentrations
pp.14-16 week commencing 30 April: soap films - use of thin platinum and tridium rings
pp.17- week commencing 7 May: soap films
pp.19-20 week commencing 14 May: soap films
pp.21 week commencing 21 May: soap films
p.22 week commencing 28 May: soap films - greater permanence of colour vortices; symmetrical and unsymmetrical vortices.
p.23 week commencing 4 June: soap films - nebular vortices
p.24-5 week commencing 11 June: soap films - colour vortices
pp.25-6 week commencing 18 June: soap films - symmetrical double vortices; evidence of wave form impressed on central stream
pp.26-7 week commencing 25 June: soap films - jets of air on "resonant" film; vortex ring photographs on silvery and black film.
pp.27-9 week commencing 25 July: soap films - soap films - cloudiness of pure oleic plateau solution; comparison of intensity of illumination reflected from silvery and black films; open air "resonant" film
pp.29-31 week commencing 9 July: soap films - clarification of solution; measurement of air rate through platinum nozzle, plain glass and spiral glass jets; sensitivity of jets on open air film; electric and magnetic influence tried on film and sensitive oxygen jets.
pp.31-3 week commencing 16 July: soap films - use of 10 year old Plateau solution; use of stumpy glass nozzle; arrangement of arc projection for showing film vortices and sensitive streams
pp.33-4 week commencing 23 July: soap films - trial of open air film for strong sound sensibility; replacement of turbid Plateau solution; luminosity ratios; theatre demonstration of colour vortices.
pp.34-6 week commencing 30 July: soap films - magnetic displacement of oxygen stream; effects of Bath gas nitr nitrogen, Canadian helium and hydrogen; electrical wind
p.36 week commencing 6 August; electrostatic field replacing magnetic field; bubbles; abstract on liquid oxygen in Warfare; transfer of Krypton & zenon to gas sample tubes
p.37 week commencing 18 Sept: films - vortices, colours, surface tensions of soap solutions
pp.38-9 week commencing 25 Sept.: viscosities and surface tensions of soap solutions; jet velocities for film vortices; samples of scyllitol inositol sent to Jensen of Copenhagen
pp.40-41 week commencing 2 Oct: work on damp and dangerous casing in large ground floor laboratory; lowering of epidiascope resistance because of heating and danger to cables above it; sound transmission through difference screens and reflectors - theatre trials; viscosity of oleic acid
p.42 week commencing 9 Oct: theatre trials on open air films as indicator for relative sound transmissibility of various materials; stability of soap solutions; permanence of froths and behaviour of bubbles
p.43 week commencing 16 Oct: liquid (oily) crystals; latent heats
p.44 week commencing 23 Oct: repairs to apparatus; vacuum distillation of C10H1Br; liquid air production; proposed rewiring of laboratory
p.45 week commencing 30 Oct: liquid air production; melting pressures of solid oxygen and solid air
p.46 week commencing 6 Nov: arrangement of apparatus for charcoal exhaustion; film jets; sample of B.P. oleic acid; two-way switch for changing from full to light are current
p.47 week commencing 13 Nov: test of compressor; B.P. oleic acid; Hg vapour pressures
p.48 week commencing 20 Nov: air compressor; plots of liquid hydrogen and liquid helium
p.49 week commencing 27 Nov: liquid air production; charcoal exhaustion of solid oxygen; theatre demonstration trials - film and manometer projection together: preparation of soaps
p.50 week commencing 4 Dec: calculation of vapour tensions of He, N, H and O in connection with limiting temperature by exhaustion; re-erection of gas engine and compressor
p.51 week commencing 11 Dec.: maintenance of apparatus; preparation of lecture theatre; bubble trials with oleic acid
p.52 week commencing 18 Dec: maintenance of apparatus; trial of H jets on open air film.
pp.53-end Blank

James Dewar  DEWAR/DBI/8  1893- ca.1898

152pp + 14pp

Contents:
MS & printed
Notebook with black cover, 6¼" x 7¾". includes:
pp.1-9 Notes for lecture experiments [by W.J.Green].
pp.10-11 Refractive indices [W.J.Green]
pp.12-13 fogs, clouds & lightning - lecture experiments[Green]
p.13 hydrogen thermometer, nitric oxide thermometer [Green]
pp.14-25 breaking strains of metals - effect of cooling [Green & Dewar]
pp.26-62 phosphorescence: low temperature studies
pp.62-3 6 Aug.1894: "First real trial of the large apparatus with hydrogen".
pp.63-4 metals: thermo-electric experiments
pp.65-7 9 & 14 August: experiments with hydrogen containing 10-12% nitrogen.
pp.67-69 21 Nov.: comparison of physical condition of chemical and atmospheric nitrogen.
pp.70-73 27 Nov: comparison of properties of liquid condition of N from air and from NO2.
pp.74-6 29 Nov: repeat of experiments with bulbs of N.
pp.77-9 5 & 12 Dec: nitrogen experiments
pp.80-83 20 Dec: examination of samples of gas from liquid air; spectra.
pp.84-92 Jan. 1895 further nitrogen experiments
pp.93-4 26 Feb. 1895 "worked H apparatus for 5 hours" - study of liquid air accumulation. Comparison of 3 vacuum test tubes exhausted at same time
pp.94-6 22 March 1894[?5]: experiments on condensation of Hg vapour. Weighing of solids in liquid O.
p.97 comparison of celluloid films cooled for 1-2 hours in liquid O with uncooled film
p.98 heat conveyed by Pt; condensation of Br vapour
pp.98-102 density of ice
p.103 test of new iron bottle
pp.103-7 liquid and solid air and nitrogen
pp.108-9 use of big apparatus to test L.A. accumulation; 5 Aug.
pp.110-17 further L.A. experiments, including thermal transparency of cooled glass
pp.118-9 8 Oct: use of large Hg vacum vessel to see Whether liquid O could be obtained by expansion of compressed gas cooled to -79
pp.119-21 same experiment with H.
pp.121-2 tests of new Flasks
pp.122-4 25-29 Oct: regenerator coil experiments
pp.124 tests on new flasks
pp.125-140 regenerator coil experiments
pp.141 11 Feb. 1896: hydrogen regenerator jet.
pp.142-3 phosphorescence
pp.144-52 1897-8: liquefaction of gases
Loose pages of notes on phosphorescence; thermo-electric experiments; apparatus. Cutting from J.Industrial & Engineering Chemistry, 1916: Some studies of soap solutions, by Victor Lenher and Mary V.R.Buell.

Sound experiments, and [DB3] Lecture notes  DEWAR/Box DB2 and DB3  [n.d.]

Contents:
Boxed together

James Dewar  DEWAR/DB2/1  1923

63 pp

Contents:
Royal Institution Printed
Soap films as detectors: stream lines and sound, 1922-3.
Weekly Evening Meeting, 19 Jan. 1923. Proc. R.I., 24, part 1.

James Dewar  DEWAR/DB3/1  1877-8

136 pp

Contents:
MS
Notebook: 12 lectures on the chemistry of the organic world, January 1878- notes, pp.2-121, with table of contents on frontispiece and p.1. At back of book, pp.129-end: record of spectroscopic observations, 31 Dec. 1877; correction of burette; preparation of chlorous acid; notes for Friday evening lecture, 24 April 1878, on "The relations of light to electricity". Remaining pages blank. Notebook measures 4¼" x 7", with hard black cover.

James Dewar  DEWAR/DB3/2  1886-1906

230 pp

Contents:
Royal Institution MS, with printed press reports and some photographs
Lecture notes, 6¾" x 9", hard marbled cover with black spine and corners. Includes notes on experiments given at lectures, with some drawings of apparatus.
pp.1-4 Course of 3 lectures on the alkaloids, May 1886
pp.4-5 Friday Evening 11 June 1886: "Meteorite problems".
pp.5-21 Christmas course, 1886-7 on "The chemical action of light and photography".
pp.21-3 Friday Evening, 1 April 1887: "Light as an analytic agent".
pp.23-29 Course of lectures after Easter 1887 on "The chemistry of the organic world".
pp.30-37 Course of 6 lectures after Easter 1888 on "The chemical arts".
pp.37-8 Friday Evening 8 June 1888: "Phosphorescence & ozone".
pp.39-44 Christmas course, 1888-9: "Clouds and cloudland".
p.45 blank
pp.46-7 Friday Evening 10 May 1889: "Optical properties of oxygen and ozone".
pp.48-54 Course of 5 lectures on "Chemical Affinity", beginning on 9 May 1889 and following Thursdays.
pp.54-6 Friday Evening 24 Jan. 1890: "Scientific work of Joule".
p.57 blank
pp.58-61 Course of 6 lectures on "Flames and explosives", on Thursdays beginning 8 May 1890.
p.62 blank
pp.63-69 Christmas course 1890-91: "Frost and fire"; with newspaper reports of the lectures.
p.70 blank
pp.71-4 Course of 3 lectures on recent spectroscopic work
p.75 blank
pp.76-7 2nd Faraday Lecture, 26 June 1891: [The chemical work of Faraday in relation to modern science].
p.78 Course of lectures on the chemistry of gases, April & May 1892.
p.79 blank
pp.80-81 Friday Evening 10 June 1892: "Magnetic properties of liquid oxygen".
p.81 Note of new arrangement for showing movement of earth with Foucault's Pendulum, for Christmas lectures
pp.82-3 Friday night 20 Jan. 1893: "Liquid atmospheric air". Note that vacuum isolation vessels first shown, and that lecture was practically repeated for H.R.H. on 22 February.
pp.84-90 Course of 5 lectures after Easter 1893 on "The Atmosphere"; with newspaper reports.
pp.91-3 Friday evening 18 Jan. 1895:"Phosphorescence and photographic action".
pp.94-105 Christmas course, 1893-4: "Air - gaseous and liquid".
pp.106-7 Friday nights 7 & 19 Jan 1894: "The scientific uses of liquid air".
pp.108-11 Course of 3 lectures after Easter 1894: "Solid and liquid states of matter".
pp.112-3 blank
pp.114-20 Course of 5 lectures, beginning 25 April 1895, on "Liquefaction of gases". Note added to Lecture 3, 9 May "H.R.H. the Duchess of Albany was expected but did not arrive".
pp.121-3 Friday night 27 March 1896: "Recent researches on liquid air".
pp.124-9 Course of 3 Thursday lectures, beginning 16 April 1896, on electric arc.
pp.130-31 List of and notes on experiments on occasion of the opening of the Davy Faraday Laboratory by H.R.H. The Prince of Wales on 22 Dec. 1896.
pp.132-3 Friday night 22 Jan. 1897: "Properties of liquid oxygen".
pp.134-8 Course of 3 Thursday lectures, beginning 29 April 1897, on "Liquid air as an agent of research".
pp.139-41 Course of 3 lectures on the halogens, Jan-Feb. 1898.
pp.142-3 Friday evening 1 April 1898: "Liquid air as an analytic agent".
pp.144-5 Friday night 20 Jan. 1899: "Liquid hydrogen". With newspaper report.
pp.146-54 Course of 3 lectures after Easter 1899, on the atmosphere. p.148 - blank.
pp.154-6 Institution Centenary Lecture, 7 June 1899: [Liquid hydrogen]. With 2 loose pages of notes inserted pp.156-7.
pp.157-9 Friday evening 6 April 1900: "Solid hydrogen".
pp.160-6 Course of 4 Thursday lectures, beginning 26 April 1900, on "A century of chemistry at the Royal Institution".
p.167 photographs of diagrams for Friday evening lecture on solid hydrogen, March [?April] 1900.
pp.168-9 Friday evening 18 Jan. 1901: "Gases at the beginning and end of the century"; with photographs of diagrams.
pp.170-5 Course of 3 lectures after Easter 1901, beginning 23 May, on carbon.
pp.176-8 & 181-3 Course of 3 Thursday lectures, beginning 3 April 1902, on "The oxygen group of elements".
pp.179-80 Friday evening 11 April 1902: "Problems of the atmosphere".
p.184 List of experiments at Sir Benjamin Baker's Friday evening lecture, 6 June 1902, on "The Nile Dams", given before the Prince & Princess of Wales.
pp.185-7 Friday evening 16 Jan. 1903: "Low temperature investigations".
p.188 Course of 3 Thursday lectures, beginning 23 April 1903, on "Hydrogen: gas, liquid and solid".
pp.189-90 Friday evening 25 March 1904: "Liquid hydrogen calorimetry".
p.191 blank
pp.192-6 Course of 3 lectures on "Flame", beginning 4 May 1905
pp.196-7 Notes for 3rd lecture, 29 April 1904 on dissociation.
pp.197-8 Friday evening 20 Jan. 1905: "Further phenomena at low temperatures".
pp.199-200 Course of 3 lectures on "Dissociation", April-May 1903: notes for lectures 2 & 3.
pp.201-3 Course of 3 Thursday lectures on "Dissociation"; notes for Lectures 1 & 2, 14 & 21 April 1904.
pp.203-4 insertions (stuck in) - diagrams of apparatus for absorption of illuminating constituents of coal gas by charcoal at -80°C and absorption of CO2 from air by charcoal at -80°C
p.204 "Times" report of Friday evening lecture on "New low temperature phenomena"; 23 Jan. 1905.
pp.205-7 Course of 3 lectures on "Flame", April -May 1905.
pp.208-9 Lectures on 19 and 26 May 1906 on "The old and new chemistry".
pp.210-11 notes on boiling points and critical points.
p.212 blank
p.213 notes on test of projector lamp, 18 Dec. 1899 and of firms supplying Dewar vacuum vessels, 1901
p.214 test of capacity of CO2 bottle, 7 Nov. 1895
pp.214-6 details of test on Brockie Pell projector lamp
p.217 list of lectures 1879-1903.
p.218 notes on electro-magnet, electric Thomason induction experiment, test of Siemen's alternator, 1896.
p.219 notes of test of alternating current dynamo, 24 March 1892, and on Siemen's alternator
p.220 notes on Meritens magneto electric machine permutations
p.221 notes on various apparatus including Faraday magnet, Siemen's lamp, Meriten's machine
p.222 notes on Siemen's motor, 4 Feb. 1891, and mieroscope.
p.223 notes on various apparatus, including Bianchi air pump and other air pumps, iron bottle used as separator, various engines capacity of gasometers.
p.224 notes on De Meritens machine.
pp.225, 227 lists of lectures, 1875-1907; typescript & MS. pp.226 & 228 blank.
p.229 "Moth liquid"
Inserted inside back cover: notes from paper 1910, on action of discharge in good vacua on Bacteria Phosphorescens at -180°C; 1p, MS.

James Dewar  DEWAR/DB3/3  ca. 1899

2 pp

Contents:
MS not Dewar's hand
List of lectures by Dewar, May 1875-April 1899, giving number of lectures in course, attendance (total and average per lecture), and receipts.

James Dewar  DEWAR/DB3/4  26 June 1891

8 pp

Contents:
Royal Institution printed
The chemical work of Faraday in relation to modern science. Faraday Centenary Lecture.

Royal Institution  DEWAR/DB3/5  May 1898

4 pp

Contents:
Printed
Prospectus of the Nature and Objects of the Royal Institution ...

Royal Institution  DEWAR/DB3/6  [1898]

4 pp

Contents:
Printed
Prospectus of meetings before Easter 1899.

Royal Institution  DEWAR/DB3/7  1899

4 pp

Contents:
Printed
Prospectus of meetings after Easter 1899.

Royal Institution  DEWAR/DB3/8  1906

8 pp

Contents:
Printed
Prospectus of meetings after Easter 1906.

Notebooks - radiation, dissociation etc.  DEWAR/Box DB4  [n.d.]

R.N.Lennox  DEWAR/DB4/1  1881-87

122 pp

Contents:
Laboratory notebook MS
Notebook 7" x 9", with hard black cover; leaves numbered 1-64.
p.1 table of contents
pp.1v-2v blank
pp.3-9 torn out
pp.10-12 aluminium experiments
p.12v blank
pp.13-14 hydrobromic acid experiments: 13v. blank.
p.14v. blank
p.15 purification of silver
pp.15v-16v blank
p.17 silicon manufacture
p.17v blank
p.18 preparation of pure NaCl and pure NH4Cl
p.18v blank
pp19-19v experiments on formation of cyanides in flames
pp20-20v blank
pp.21-22 cyanids; p.21v blank.
pp.22v drawing of apparatus
No pp.23 & 24
pp25-25v blank
p.26 white compound obtained by liquid CN acting on H2SO4SO3.
pp26v-27 experiments on Backu mineral oils.
pp27v-28v blank
p.29 analysis of water from the Brow ? Well, Ruthwell, Dumfries, 8 July 1883.
p.29v blank
No p.30
p.31 analysis of rain waters collected on roof of R.I., July 1883
p.31v experiments on black ash
p.32 blank
p.33 action of Al2Cl6KNaCl2 on 6 KCN
p.33v blank
pp34-36v experiments with black aluminium compound; pp34v & 35v blank
pp.37-39 cut out
p.40 analyses of grape sugar and solutions of tobacco. Notes on subacetate of lead & glucose [Dewar].
p.40v-41 radiation from platinum
p.42v blank
p.43-45 cut out
p.47 analysis of waters from Alysbury, 8 Nov. 1884
pp.47v-49 fuses and gunpowder
pp49v-52 ozone and flames
pp.52-52v attempt to dissociate nitric peroxide, 6 July 1887
p.53 analysis of glycerine residue
p.53v baku oil
p.54 experiments with wood charcoal and electric light carbon, Nov.1887
pp.54v-58 dissociation of chloride of Mg, Nov-Dec. 1887
pp.58v-59v Experiments with oxychloride in coke furnace
pp.60-61v Blank
p.62 note on heating of water in MnO2 with H2SO4.
pp.62v-63v diagrams
p.64 List of experiments
Inside back cover: 4½ pp MS notes on Gun Guaiacum.

G: [Ansdell]  DEWAR/DB4/2  1882-3

176 pp

Contents:
Laboratory notebook; MS
Notebook, 4½" x 7", hard black cover; labelled No.8 and initialled G.A. [G.Ansdell], Royal Institution.
pp.1-2 continuation of experiment 29 on formation of BaCy2 from Notebook no.6.
p.3 Expt 30: to try effect of mixing CaCO3 and BaCO3 before subjecting them to nitrogen.
pp.4-5 Expt 31: using BaO made in different way
pp.5-12 Expts 32-36: subjecting BaCO3 to pressure and heat
pp.13-14 Expt 37 to determine whether length of heating affected yield of cyanide
pp.15-18 Expts 38-40: experiments with pitch
pp.19-20 Expt 41 with BaO and lampblack.
pp.21-22 Expt 42 with BaCO3 and graphite
pp.23-26 Expts 43-45: BaCO3 and lampblack
pp.27-8 Expt 46: BaCO3 and finely divided iron.
pp.29-30 Expt 47: BaCO3 and ignited MgO.
p.31 Expt.48: BaCO3 and LiCO3.
p.32 Expt.49: conducting nitrogen into crucible to see whether yield of BaCy2 could be increased.
p.33 blank
pp.34-50 experiments with crude petroleum oil from Baku in Russia, including analysis of fractionated oils (pp37-9) examination of portions obtained between every 5 degrees (pp.40-45), determination of density (pp47-50); p.46 blank.
pp.51-58 further investigation of the chlorine and nitro bodies found with these oils, April 1883: chlorine compounds pp.51-4, nitro bodies from p.55.
p.59 blank
pp.60-64 Baku oils: conversion of portion boiling between 270-280°C.
p.65 Baku oils: conversion of portion boiling between 180-190°C.
pp.66-70 Baku oils: examination of nitric acid solution from first treatment.
pp.71-2 Baku oils: examination of viscous portion left undissolved by repeated treatment of the 180-190°C boiling point portions with HN3.
p.73 blank
pp.74-5 further examination of the crude petroleum from Baku
pp.76-8 nitrification of portion boiling between 180-200°C.
pp.79-80 the barium salt
pp.80-81 the silver salt made in a different way
pp.82-3 nitrification of high boiling point portion, above 240°C.
pp.84-87 the silver salt
pp.88-93 examination of syrupy acid obtained by first nitrification of portion boiling between 180-200°C.
p.94 the methyl compound
pp.95-6 examination of remaining portion of viscous nitro body
pp.97-8 examination of high B.P. portion
p.99 silver salt from high B.P. acid
p.100 addition of original acid to NaHO
p.101 addition of potash to portion
p.102 analysis of original nitro body by combustion
pp.103-4 hydrogenation of nitro body from high B.P. oil
pp.105-12 Feb.1883: Experiments on the preparation of aluminium. pp.109-10 attempted reduction of chloride of aluminium by copper and cyanide of potassium; p.111 attempted reduction of Al2S3 by Na; p.112 preparation of Al2S3.
pp.113-4 blank
p.115 continuation of Baku oil experiment on p.104 on black sticky compound not corrected by Sn and HCl.
pp.116-8 blank
p.119-21 nitrification of portion of distillate (p.74) boiling between 220-240°C.
p.122 reduction of the soluble acid body
pp.123-5 reduction of the high B.P. acid
p.126 blank
pp.127-8 reduction of portion boiling between 220-240°C (continuation of p.122)
pp.129-31 reduction of soluble acid portion of 220-240°C with alcoholic NH4S.
p.132 blank
pp.133-4 attempt to reduce the insoluble nitro body from the oil boiling between 220-240°C.
pp.135-6 blank
pp.137-40 further nitrification of the insoluble portion from the first treatment
pp.141-2 blank
pp.143-4 nitrification from very high boiling point oils
pp.145-7 blank
pp.148-52 nitrification of ordinary paraffin oil
pp.153-61 examination of the portion of the crudely distilled Baku oil (p.74) boiling between 240-260°C: pp.154-5 composition of soluble acid; pp.156-7 insoluble nitro body; p.158 blank; pp.159-60 quantity of nitrogen found in soluble acid; p.161 hydrocarbon contained in soluble acid.
pp.162-72 blank
pp.173-6 references to literature on the cyanids

[?R.N.Lennox]  DEWAR/DB4/3  1882-3

172 pp

Contents:
Laboratory notebook MS
Notebook, 4½" x 7", hard black cover, labelled no.10, containing laboratory analyses.
Inside frontispiece: notes on white Cu compound and oxamide
pp.1-3 oxamide
p.4 rough calculations
pp.5-13 waters from Ruthwell
p.14 blank
pp.15-23 Baku oils
pp.24-5 blank
pp.26-38 rain waters collected from roof of R.I., Aug-Oct.1882
p.39 blank
pp.40-47 black ash
p.48 blank
p.49 tap waters
pp.50-58 lead pipe from Dr Bowman
p.59 blank
p.60 sketch of apparatus
pp.61-65 urea
p.66 rough calculations
pp.67-71 tobacco
pp.72-87 black aluminium compound
pp.88-134 tobacco
pp.135-60 radiation
pp.161-4 blank
p.165 note- headings
p.166 oxamide
p.167 blank
pp.168-9 drawings of apparatus
p.170 Dr Bowman's water
p.171 blank
p.172 & inside end paper: denitration of H2SO4.
End paper drawing of apparatus
Inside back cover rough calculations

[?R.N.Lennox]  DEWAR/DB4/4  1882-8

106 pp

Contents:
Laboratory notebook MS
Notebook, 7" x 8¾", hard black cover, labelled no.12.
Inside frontispiece: table of contents
p.1 air analysis, 3 July 1882
pp.2-3 dissociation of mixtures of gases
p.4 blank
p.5 Determination of C and N in salts from petroleum
p.6 estimation of CO2 in air from roof, 5 May
pp.7-9 estimation of CO2 in air of the lecture theatre, May 1883 and January 1888
Remainder of book written from back
pp.10-16 formation of acetylene in arc; synthesis of acetylene
p.17 drawing of apparatus
pp.18-19 blank
p.20 acetylene: Analyses C2H2 made from Cu compound
p.21 blank
p.22 acetylene
pp.23-26 analysis of gases to check C2H2 experiments
pp.27-29 blank
pp.30-39 calorimetry, Feb. 1883; pp.31, 33, 35 blank
p.40 chlorine and hydrogen photometer: results with gas flames
p.41 blank
pp.42-51 experiments with gases in arc from De Meritens machine
pp.52-3 blank
pp.54-5 analysis of white substance obtained by treating liquid cyanogen with H2SO4 and H2SO3.
pp.56-7 blank
p.58 analysis of black substance
p.59 blank
pp.60-66 experiments with black Al compound
p.67 blank
pp.68-9 experiments on action of cyanogen on Al2Cl6.
pp.70-84 analysis of black aluminum compound, pp.73, 77 & 79 blank.
p.85 gases from Al compound; drawing of apparatus
p.86-7 action of aluminium on KCN
pp.88-9 analyses of black aluminum compound
p.90 manufacture of Al.
p.91 pure bromide of ammonia
p.92-4 blank
p.95 experiments to determine the ratio of heating between the negative and positive poles of a vacuum tube in different gases at different pressures
p.96 blank
p.97 drawing of apparatus
pp.98-100 experiments with carbon cruc. heated by arc; p.99 blank
p.101 drawing of apparatus
pp.102-3 blank
pp.104-6 + inside and paper: instructions for working the Brockie Pell arc lamp

R.N.Lennox  DEWAR/DB4/5  1884-5

100 pp

Contents:
Laboratory notebook MS
Notebook, 4½" x 7", hard black cover, giving details of radiation measurements, 6 Feb. 1884 to Feb. 1885. Pages cut out between pp.80-81, 84-85 and at end. Note inside end paper about specific gravity of blacking.

[?G.Ansdell]  DEWAR/DB4/6  1903-4

96 pp

Contents:
Laboratory notebook MS
Notebook, 4" x 6¼", soft black cover, including some notes in Dewar's hand
pp.1-32 radium, including Curie radium and a new mineral, Uraninite, from Ceylon (p.29)
pp.33-54 fractionation of gases
pp.55-59 spectra, chiefly neon and helium
p.60 note by Dewar on persistency of carbon and CN spectra in tube
p.61 note on gas occluded from charcoal
p.62 blank
pp.63-4 note of labels on gases from sea waters, provided by Prof. Buchanan, 1877, and used in preparing no.40 tube 1904.
pp.65-96 absorption of gases by various compounds

Low Temperature Work  DEWAR/Box DB5a  1874-1919

[?G.Ansdell]  DEWAR/DB5a/1  1878-9

238 pp

Contents:
Laboratory notebook MS
Notebook, 7" x 9", soft black cover, spine broken, of rough laboratory notes. Includes:
p.1 calculations; Cailletet's values for tensions
p.2 notes on galvanometer
pp.3-5 experiments with Cailletet apparatus
p.6 correction of manometer on Cailletet apparatus
pp.7-22 experiments with Cailletet apparatus, including determination of density of CO2, and liquefaction of nitrous oxide.
p.23 calibration of Cailletet tube
p.24 liquefaction of mixture of CO2 and N2O
p.25 calibration of Cailletet tube for determining specific gravity of CO2 at different temperatures
p.26 specific gravity of CO2 at 21°C
pp.27-31 density of CO2.
pp.32-38 density of liquid CO2.
pp.39-40 blank
pp.41-68 density of liquid CO2.
pp.69-71 blank
pp.72-4 calibration of capillary tube
pp.75-94 readings and densities obtained from tube
p.95 densities obtained from narrow tube
pp.96-104 calibration of capillary tube for use as air manometer
pp.105-33 CO2 liquid density
p.133 tensions of liquid CO2 at different temperatures
p.134 densities from narrow tube
p.135 CO2 liquid density
pp.136-50 compression of liquid CO2.
pp.150-51 determination of coefficient of compression of liquid CO2 at different temperatures
p.152 average coefficients of compression of CO2 liquid at different temperatures.
p.153 comparison of his own liquid CO2 tensions with those obtained by Andrews.
p.154 blank
pp.155-6 calibration of tube and reservoir to be used for CO2 1 Nov. 1878
pp.157-60 compression of liquid CO2 4 Nov.
p.161-3 experiments to test purity of CO2 6 Nov.
p.164 coefficients of compression of liquid CO2 at different temperatures, the pressure being constant
p.165 experiments to test purity of CO2, using same tube as on p.161.
p.166-7 coefficients of compression of liquid CO2 at different temperatures, the pressure being constant
p.168 coefficients of compression of liquid CO2 at different temperatures and pressures, the volume remaining constant.
p.169 coefficients of compression at points on a horizontal line drawn through the iso-thermals, the initial volume being the same.
pp.170-7 experiments on the compressibility of water, made in the capillary tube used in the last liquid CO2 compressions, to find out how much was due to the expansibility of the tube; beginning 25 Nov. 1878.
p.178 comparison between Grassi's coefficients and his own.
pp.179-83 blank
pp.184-87 liquefaction and compression of acetylene, Feb. 1879.
pp.188-9 determination of critical point (acetylene).
pp.190-1 blank
pp.192-9 density determinations of liquid acetylene
p.200 18 Feb. 1879: re-erection of manometer and acetylene tubes
pp.201-4 density determinations of liquid acetylene
pp.205-6 blank
pp.207-11 compression of liquid acetylene at different temperatures 19 Feb. 1879.
p.212 air manometer for low pressures; 25 Feb. 1879
p.213 tensions of liquid acetylene at different temperatures; 25 Feb. 1879.
pp.214-5 coefficients of compression of liquid acetylene at different temperatures, the pressure being the same.
p.215 coefficients of compression at different temperatures and pressures, the volume remaining the same (liquid C2H2 and C6 H6 at different temperatures; coefficients of
p. compression at different temperatures but the same initial volume
pp.217-29 blank
pp.230-5 experiments to see if CO2 gas could be obtained free from air
p.236 blank
p.237 sensitiveness of kilogram balance
p.238 note of contents of volume

G.Ansdell  DEWAR/DB5a/2  1878-83

214 pp

Contents:
Royal Institution Laboratory notebook; MS
Notebook, 6½" x 8", hard black cover, containing laboratory notes. Written from front and from back; pp.151-212 originally numbered from back as pp.1-28 and 87-122; pages originally between 28 and 87 cut out. Notebook labelled no.6, includes:
Frontispiece: note of contents
pp.1-12 14 Nov. 1878: experiments to try the effect of pressure on saturated and super-saturated solutions of salts and also on other substances: NH4Cl, sodium hyposulphite, sodium acetate, yeast and water yeast in alcohol, cane sugar, herring, yeast in oxygen
pp.13-14 experiments to determine whether supersaturated solutions expand or contract on crystallising.
pp.15-16 blank
pp.17-36 notes on a course of lectures at Christmas 1878-9, on a soap bubble (pp.17 & 34 blank).
p.37 blank
pp.38-9 readings of spectroscope, 22 March 1879.
pp.40-41 spectrum of electric arc from 60 Grove cells in hydrogen
p.42 carbon lines obtained from burning CH3Cl.
p.43 carbon lines obtained by burning tetrachloride of carbon and hydrogen and bisulphide of carbon and hydrogen.
p.44 blank
p.45 readings of three prism spectroscope; 17 May 1879
p.46 blank
pp.47-8 projection of spectrum; 24 May 1879
pp.49-53 experiments with electric arc [pp.52-3 in Dewar's hand]
p.54 blank + some pages cut out
pp.55-68 experiments on some reactions of lithium, to ascertain the possibility of making cyanide of lithium and the subsequent formation of ammonia by decomposing the cyanide; June 1882.
pp.68-70 experiments to try and prepare metallic aluminium other than by reduction with sodium; July 1882.
pp.71-72 attempt to make alloy of lithium and sodium as spoken of in Troost's researches.
p.73 blank
pp.74-78 further lithium experiments; 19 Oct. 1882
pp.79-133 experiments with cyanide of barium
p.134 critical temperature and pressure of liquid NO2
p.135 critical temperature and pressure of liquid Cl. inserted between pp.134-5, loose leaf giving critical temperature and pressure of well known gases in their liquid condition.
p.136 critical temperature and pressure of NH3
p.137 critical temperature and pressure of liquid H2S.
p.138 3 Nov. 1882: determination of the critical temperature and pressure of liquid cyanogen.
p.139 blank
p.140 tensions of pure HCl
pp.141-50 experiments on the critical point of mixed CO2 and HCl gases; 15 May 1882. (p.146 blank)
pp.151-2 blank
pp.153-62 hydrobromic acid; tube for tensions and practical volumes; June 1880.
p.163 blank
p.164 new air manometer; 22 April 1880.
p.165 blank
pp.166-7 CO2 and bromine; 9 March. Liquefaction experiments.
pp.168-9 CO2 and iodine; 8 March: liquefaction.
pp.170-72 CO2+ air and camphor; 5 March.
pp.173-79 CO2 and camphor; March 1880.
p.180 liquefaction of CO2 and CS2
p.181 blank
pp.182-3 CO2 and HCl gases; 2 March: liquefaction experiments.
p.184 blank
pp.185-6 experiments compressing different gaseous mixtures in a Cailletet pump; 28 Feb. 1880: CO and air. pages cut out between pp.186-7 (originally p.87 and p.28)
pp.187-8 liquefaction of CO2 and CH3Cl.
pp.189-91 liquefaction of CO2 with tetrachloride of carbon; 12 March.
pp.192-95 liquefaction of CO2 with PCl3.
p.196 blank
p.197 liquefaction: notes of temperatures and pressures-CO2+ CS2, CO2+C4H10 O, CO2+C6H6.
pp.198-201 CO2 and ether
pp.201-3 CO2 and chloroform
pp.204-6 CO2 and benzene: liquefaction.
pp.206-8 CO2 and absolute alcohol: liquefaction.
pp.208-12 CO2 and CS2: liquefaction. 27 Nov. 1878
p.213 Note of contents of rear section of book.

[James Dewar]  DEWAR/DB5a/3  1904-5

40 pp

Contents:
Notebook MS
Exercise book with soft green-grey cover, 63/8" x 8"; cover and some pages loose.
Notes on partial pressure of volatile gases in air (pp.1-2); p.3 blank; rest of book contains notes on different whiskies, their manufacture and development,(pp.18, 20, 22, 24, 26, 28, 29-33, 39 blank); with loose page of notes (back of envelope) on Irish whiskey inserted between pp.20-21.

Laboratory notebook  DEWAR/DB5a/4  [ca. 1903-4]

136 pp

Contents:
MS
Notebook, 8" x 12½", with hard red-brown marbled cover and red spine, includes:
pp.1-2 compressions of compounds under hydraulic press: table noting compound, pressure, time, die used and remarks
p.3 compressions of lead at ordinary and -80° temperature: table noting temperature, pressure, size of shot, size of die and remarks
pp.4-5 notes on compressions of lead
pp.6-7 notes on compressions of bismuth, cadmium, tin, silver, arsenic, antimony and fusible alloy
pp.8-11 notes on compressions of lead, including compression of lead into wire
pp.12-19 blank
pp.20-23 compressions of lead: tables noting treatment, shape of faces, pressure, time, results and remarks
p.24 breaking strain of metals in pounds at 15°C and - C
p.25 blank
pp.26-7 notes on compressions of water
pp.28-31 notes on compressions of water, air and gases
pp.32-3 notes on compressions of benzol
pp.34-37 notes on compression of water
p.38 compressibility per unit volume per atmosphere x 106 for various substances including ether, water and lead
p.39 results of elongation of metals 15°C & -182°C in old experiments; breaking stresses of metals, 15°C & -182°C (old experiments); note [by Dewar] on compression of water.
pp.40-41 blank
pp.42-45 breaking stresses of metal wires, 1/10" diameter, 1" long between clips, in lbs: table noting name and description of wire, breaking pressure at 15°C and -182°C, elongation at 15°C and -182°C, and remarks.
pp.46-51 breaking stress in lbs and elongations in parts of 1 inch at 15°c and -182°C of metals turned from rods: table noting name of metal, dimensions, breaking pressures, elongation and remarks
pp.52-55 blank
pp.56-65 breaking stress in lbs and elongation in parts of 1", of turned test pieces of various substances: table noting name of substance, dimensions, breaking pressures at 15°C and -182°C, elongation at 15°C and -182°C, and remarks.
pp.66-69 blank
pp.70-71 breaking stresses of turned test pieces broken in small hydraulic press or in testing machine; tables noting name of metal, diameter and length, elongation, breaking pressure in lbs and in tons per sq.inch.
p.71 note on result of subjecting 1½" die to pressure tensile strength in tons per sq inch of metals at 15°C and -182°C. Table noting tensile strengths and percentage increase of strength at -182°C.
p.73 elongation of metals listed on p.72. Table noting elongation at 15°C and -182°C and percentage increase or decrease of elongation at -182°C.
p.74 heading only for tensile strength table
pp.75-81 blank
p.82 breaking pressures of metal test bars broken in hydraulic press and testing machine: table noting names of metals, breaking pressures in atmospheres and in tons per square inch for the press at 15°C and -182°C, breaking pressures in lbs and in tons per sq inch for machine at 15°C and -182°C; with note of mean differences between the two machines at 15°C and -182°C
p.83 table[by Dewar] of results of trial of Hadfield test bars in hydraulic press, noting diameters, breaking pressures at 15°C and -182°C and elongation at 15°C and -182°C; notes on tensile strength of steel test bars broken in small hydraulic press and of aluminium test bars, 1/5" diameter, at 300 C.
pp.84-90 July & August 1903, Hadfield's steel test bars. Table noting number and mark of bar, diameter, breaking pressures at 15°C and -182°C, elongation at 15°C and -182°C, breaking pressures in tons per square inch at 15°C and -182°C, and percentage elongation at 15°C and -182°C.
p.91 notes on compressions of lead cylinders and of 1½" steel die
pp.92-96 compression of benzol
p.97 compression of ether
pp.98-101 compression of gases
p.102 compression of solid CO2 and of uranium acetate
p.103 compressions of charcoal
pp.104-5 Feb. 1904: Hadfield's steel test bars. Table noting number and mark of bar, diameter, breaking strength at 15°C and -182°C, elongation at 15°C and -182°C, breaking strenghth in tons per square inch at 15°C and -182°C, percentage elongation at 15 C and -182 C inserted between pp.104-5, note [by Dewar] on compressibility of various substances and graph [?Dewar] of breaking stress
pp.106-7 March 1904: Hadfield's steel test bars. Table noting number and mark of bar, diameter, breaking strength at 15°C and -182°C, elongation at 15°C and -182°C, breaking strengths in tons per square inch, and percentage elongation at 15°C and 182°C.
pp.108-113 April 1904: Hadfield's "Ball test" experiments; includes experiments heating steel bars and quenching in liquid air, then testing for tensile strength at 15° C; tests to see whether wire and samples of steel were magnetic at -182° C; tests to see whether rods of steel became brittle at -182°C
p.114 Hadfield's steel bars, 5 May 1904: contraction of bars after cooling to temperature of liquid air.
pp.108-113 April 1904: Hadfield's Ball test" experiments; includes experiments heating steel bars and quenching in liquid air, then testing for tensile strength at 15°C; tests to see whether wire and samples of steel were magnetic at -182°C; tests to see whether rods of steel became brittle at -182°C
p.114 Hadfield's steel bars, 5 May 1904: contraction of bars after cooling to temperature of liquid air.
p.115 blank
pp.116-8 Hadfield's test bars, May 1904. Table noting number and mark of bar, diameter, breaking strengths in atmosphere atmospheres at 15°C and -182°C, elongation at 15°C and 182°C, tensile strengths in tons per square inch, percentage elongation at 15°C and -182°C
p.119 Hadfield's three steel test bars, July 1904: table giving same details as pp.116-8, and notes on test of two iron test bars, August 1904.
pp.120-21 notes on compression of 1½" steel die, with diagrams
pp.122-8 blank
pp.129-33 list of equipment (crossed out)
p.134 blank
p.135 index (crossed out) - for first 6 pages only.
p.136 blank
Inside back page: notes on equipment and on hydraulic press.

James Dewar et al  DEWAR/DB5a/5  ca.1866-85

1 volume

Contents:
Printed with MS additions
Collection of papers by James Dewar, not in chronological order; 5½" x 8¼", hard red cloth cover, with leather corners and spine; spine damaged and covers loose. Volume includes:
At front: MS notes of references to literature, including notes on intensity of coronal lines and phosphorescence.
Liveing & Dewar: On the reversal of the lines of metallic vapours; Proc. Royal Soc., No. 185, 28 Feb. 1878.
Liveing & Dewar: On the reversal of the lines of metallic vapours; 2 Proc. Royal Soc., No.187, 2 May 1878.
Liveing & Dewar: On the reversal of the lines of metallic vapours; 3 Proc. Royal Soc., No.188, 20 June 1878.
Liveing & Dewar: On the reversal of the lines of metallic vapours; No.4; Proc. Royal Soc., No.193, 20 Feb. 1879.
Liveing & Dewar: On the reversal of the lines of metallic vapours; No.5; Proc. Royal Soc., No. 193, 27 Feb. 1879.
Liveing & Dewar: On the reversal of the lines of metallic vapours; No.6; Proc. Royal Soc., No. 195, 3 April 1879.
Liveing & Dewar: On the reversal of the lines of metallic vapours; No.7; Proc. Royal Soc., No. 198, 27 Nov. 1879.
Liveing & Dewar: On the reversal of the lines of metallic vapours; No.8; Proc. Royal Soc., No. 214, 16 June 1881.
Liveing & Dewar: On the arrangement of the electric arc for the study of the radiation of vapours, together with preliminary results; Proc. Royal Soc., No.221, 15 June 1882; MS note added [by Dewar].
Liveing & Dewar: Quantitative spectroscopic experiments; Proc. Royal Soc., No.199, 11 Dec.1879.
Liveing & Dewar: Note on the unknown chromospheric substance of young; Proc. Royal Soc., No.195, 3 April 1879; MS notes added [by Dewar].
Liveing & Dewar: On the spectra of the compounds of carbon with hydrogen and nitrogen; Proc. Royal Soc., No.201, 5 Feb. 1880; MS notes added [by Dewar].
Liveing & Dewar: On the spectra of the compounds of carbon with hydrogen and nitrogen, 2; Proc. Royal Soc., No.205, 10 June 1880; MS notes added [by Dewar].
Liveing & Dewar: On the spectrum of carbon; Proc. Royal Soc., No.219, 9 March 1882; MS notes added [by Dewar].
Liveing & Dewar: General observations on the spectra of carbon and its compounds; Proc. Royal Soc., No.221, 15 June 1882; MS notes added [by Dewar].
Liveing & Dewar: ON the spectra of sodium and potassium; Proc. Royal Society, No.198, 27 Nov. 1879.
Liveing & Dewar: On the spectra of magnesium and lithium; Proc. Royal Society, No.200, 15 Jan. 1880; MS notes added [by Dewar].
Liveing & Dewar: On the spectrum of water, 2; [Proc.Royal Society], rec'd 14 Jan. 1882. [Cutting stuck into volume].
Liveing & Dewar: On the spectrum of water; Proc. Royal Soc., No.205; 17 June 1880; MS notes added [by Dewar].
Liveing & Dewar: Note on the reversal of the spectrum of cyanogen; Proc. Royal Soc., No.216, 1881.
Liveing & Dewar: Investigations on the spectrum of magnesium; Proc. Royal Soc., No.213, 12 May 1881; MS notes added [by Dewar].
Liveing & Dewar: On the disappearance of some spectral lines and the variations of metallic spectra due to mixed vapours; Proc. Royal Soc.; No.219, 16 March 1882; MS notes added [by Dewar].
Liveing & Dewar: On the identity of spectral lines of different elements; Proc. Royal Soc.; No.213, 19 May 1881; MS notes added [by Dewar].
Liveing & Dewar: On the ultra-violet spectra of the elements; Part 1; Proc. Royal Soc., No.221, rec'd 8 June 1882; Part 2, rec'd 15 June 1882; Abstracts.
Liveing & Dewar: Note on the history of the carbon spectrum; Proc. Royal Soc., No.205, 10 June 1880.
Liveing & Dewar: Note on 'Spectroscopic Papers'; Proc. Royal Soc., No.197, 19 June 1879.
Liveing & Dewar: Note on a direct vision spectroscope after Thollon's plan, adapted to laboratory use and capable of giving exact measurements; Proc. Royal Soc., No.195, April 1879.
Dewar: On the lowering of the freezing-point of water by pressure; Proc. Royal Soc., No.205, 17 June 1880: MS notes added (by Dewar].
Dewar: Note on electrolytic experiments; Proc. Royal Soc., No.201, 12 Feb. 1880.
Dewar: Spectroscopic investigation; Royal Insitution discourse, 6 June 1879.
Dewar: Origin and identity of spectra; Royal Institution discourse, 10 June 1881; MS notes added [by Dewar].
Dewar: Preliminary note on experiments in photometry; Proc. Royal Soc., No.187, 2 May 1878; MS note added [by Dewar].
Dewar & Wm Dittmar: On the vapour-density of potassium - preliminary notice; Proc. Royal Soc., No.143, 1873
Dewar & Alexander Scott: On the vapour densities of potassium and sodium; Proc. Royal Soc., No.197, 19 June 1879.
Dewar & Scott: Further experiments on the vapour densities of potassium and sodium; Proc. Royal Soc., No.199, 11 Dec. 1879.
Dewar: On the formation of hydrocyanic acid in the electric arc; Proc. Royal Soc., No.197, 1879.
Dewar: Investigations at high temperatures; Royal Institution discourse, 16 Jan. 1880; MS notes added by Dewar.
Dewar: Manometric observations in the electric arc; Proc. Royal Soc., No.218, 19 Jan. 1882.
Dewar: On the critical point of mixed vapours; Proc. Royal Soc., No.205, 17 June 1880.
Dewar & John G.M 'Kendrick: On the physiological action of light; abstract of three communications read before the Royal Society of Edinburgh, 1873.
Dewar: On the physiological action of light; Royal Institution discourse, 5 Feb. 1875
Dewar: The physiological action of light; Royal Institution discourse, 31 March 1876.
Dewar: On the oxidation of phenyl alcohol, and a mechanical arrangement adapted to illustrate structure in the non-saturated hydrocar ons; Proc. Royal Soc. Edinburgh Session 1866-7.
Dewar: Chemical notes: 1. On the atomic volume of solid substances; 2. On inverted sugar; Proc. Royal Soc. Edinburgh, vol 7, 1870; MS notes added [by Dewar].
Dewar: Motion of a palladium plate during the formation of Graham's hydrogenium; Proc. Royal Soc. Edinburgh, Session 1868-9.
Dewar: Studies in the chinoline series: 1. Transformation of leucoline into aniline; Proc. Royal Soc., No.179, 15 March 1877.
Dewar: Studies on the chinoline series; Proc. Royal Soc., No.201, 12 Feb. 1880.
Dewar & Wm Dittmar: On a derivative of meconic acid; Proc. Royal Soc. Edinburgh, Session 1866-7.
Dewar & Arthur Gamgee: On cystine; Proc. Royal Soc. Edinburgh; Session 1869-70.
Dewar: Note on cystine; Proc. Royal Soc. Edinburgh, session 1871-2; MS notes added [by Dewar].
Dewar: Preliminary report on the thermal equivalents of the oxides of chlorine; British Association 1871 & referred to in Nature, 10 August 1871.
Dewar: Reactions of chlorosulphuric acid; Chem. News, 1869; read before British Association; MS notes added [by Dewar] cutting
Dewar: Professor Dewar on "Plant life"; meeting of Highland Society at Inverness; undated cutting.
Dewar: electrometer; undated cutting.
Dewar: report of Dewar's opening address to the British Association at Sheffield; undated cutting.
Dewar: The physical constants of hydrogenium, Part 2; 1878.
Liveing & Dewar: Studies in spectrum analysis; 1878.
Dewar: The liquefaction of gases; Royal Institution discourse, 14 June 1878.
Dewar: On recent developments of the theory of dissociation; Chemical News, 12 May 1882; cutting.
Syllabus for course on spectroscopy; undated cutting.
Dewar: Syllabus for course on eleven lectures at the Royal Insitution on the new chemistry; 1885; MS notes added [by Dewar].
Dewar: Syllabus for course of lectures on molecular forces; Royal Institution; undated cutting; MS note added [by Dewar].
Dewar: note inside back cover on spectra of quartz; MS, undated.

James Dewar  DEWAR/DB5a/6  1875 & 8

7 pp

Contents:
Royal Institution printed
Notes relating to twelve lectures on the chemistry of the organic world; Royal Institution Jan-April 1878; MS additions [by Dewar]. Cutting from Nature 15 July 1875, reporting on discourse given by Dewar on charcoal vacua.

James Dewar  DEWAR/DB5a/7  1898

5 pp

Contents:
Printed
On the boiling point of liquid hydrogen under reduced pressure. Proc. Royal Soc., vol.64; read & rec'd 15 Dec. 1898.

James Dewar  DEWAR/DB5a/8  1898

8 pp

Contents:
Printed
Application of liquid hydrogen to the production of high vacua, together with their spectroscopic examination.
Proc. Royal Soc., Vol.64; read & rec'd 15 Dec. 1898.

Royal Institution  DEWAR/DB5a/9  1899

22 pp

Contents:
Printed + 4 plates
Centenary Commemoration; includes lectures by Rayleigh and Dewar. (Dewar's lecture is on liquid hydrogen)

James Dewar  DEWAR/DB5a/10  1899

6 pp
Language:  French

Contents:
Printed
Sur la solidification de l'hydrogène. Annales de Chimie et de Physique, 7th series, vol.18, Oct. 1899

James Dewar  DEWAR/DB5a/11  1912

12 pp

Contents:
Printed
List of papers by Dewar and colleagues relating to investigations at low temperatures, 1874-1912.

James Dewar  DEWAR/DB5a/12  1919

13 pp

Contents:
Printed & typescript
List of papers by Dewar and colleagues relating to investigations at low temperatures, 1874-1919.

Low temperature work  DEWAR/Box DB5b  1874-1919

[?R.N.Lennox]  DEWAR/DB5b/1  1878-188[?]

126 pp

Contents:
Laboratory notebook, MS
Notebook, 4½" x 7", with hard dark red cover, spine damaged; labelled "1"; written from front and from back; back pages originally numbered 1-65. Includes:
At front: Table of contents and crossed out list of readings from spirit thermometer, 25 May 1878.
pp.1-14 experiments to determine the tension of solid CO2 May-June 1878.
pp.15-19 determination of the latent heat of solid compressed CO2, 22 June
p.20 soap bubble experiment, Feb. 1884.
p.21 blank
p.22 note on ethylene
p.23 blank
pp.24-28 experiments with KHO; gas analyses; March 1885.
pp.29-60 blank
pp.61-65 experiments to find the coefficient of expansion of CO2.
pp.66-69 density of CO2.
pp.70-71 blank
pp.72-3 specific gravity of CO2.
p.74 blank
pp.75-77 determination of density of CO2 at -78°C.
pp.78-81 density of gases
p.82 density of hydrogen
pp.83-7 density of gases: determination of the carbonic acid
pp.88-92 Density of carbon dioxide and hydrogen, 3rd method.
p.93 blank
p.94 note on CO2.
p.95 blank
pp.96-7 density of gases: hydrogen
pp.98-103 density of hydrogen and CO2 - combustion method
pp.104-5 densities of CO2 and hydrogen: 3rd method
pp.106-15 determination of densities of CO2 and hydrogen: 2nd method
pp.116-7 vapour densities of hydrogen
pp.118-126 determination of density of CO2.
Inside back page: note of contents of section.

G.Andell  DEWAR/DB5b/2  1880-1883

184 pp

Contents:
Laboratory notebook, MS
Notebook, 4½" x 7", black cover, damaged spine; includes:-
Inside front cover: drawing of oxygen apparatus [Dewar] frontispiece: table of contents
pp.1-3 experiments in electrolysis with de Meritens machine; 16 Feb. 1880.
p.4 blank
p.5 calorimeter for de Meritens machine current
p.6 blank
pp.7-8 notes on diamond [Dewar].
pp.9-10 blank
pp.11-26 experiments with water and ice under compress beginning 12 March; includes notes by Dewar.
pp.27-38 effects of pressure on brine
pp.39-42 effects of pressure on saturated solutions of Na2SO4.
pp.43-47 effects of pressure on saturated solutions of NH4C1.
pp.48-51 compression experiments using modified apparatus, April 1880.
p.52 blank
pp.53-59 thermal experiments continued with high pressure pump
pp.60-61 notes for course of eight lectures on metals; 1st lecture, 20 April 1882.
pp.62-64 notes on experiments shown at Friday evening discourse on the researches of Deville, 21 April 1882.
pp.64-81 notes for lectures 2-8 on metals, 27 April to 8 June 1882.
pp.82-4 course on spectroscope; notes for lecture 5 and for lecture 7 (flame).
pp.85-88 notes for Friday evening discourse on the electric arc and chemical synthesis, 8 June 1883.
pp.89-100 notes on experiments for Christmas course 1883-4 on alchemy.
pp.101-3 list of books relating to alchemy
pp.104-10 notes for lectures on oxidation and flame, after Easter 1884.
pp.111-13 experiments on condition of thermojunction after being subjected to great pressure, May 1884.
p.114 blank
p.115 rough note of chemicals
pp.116-7 blank
pp.118-22 continuation of notes on lectures on oxidation and flame.
p.123 notes for Friday evening discourse on liquefaction of gases
pp.124-7 notes on experiments for lecture on occasion of visit of Prince and Princess of Wales, 26 June 1884
pp.128-44 notes on experiments for course of lectures on the new chemistry, Jan-March 1885.
pp.144-6 experiments performed and prepared but not performed on occasion of visit of the Prince of Wales on 25 Jan. 1885.
pp.146-53 experiments for Christmas lectures 1885 on meteorites
pp.154-5 blank
pp.156-7 list of books on meteorites
pp.158-62 notes on experiments for lectures on electro chemistry, March-April 1886.
pp.163-5 blank
p.166 antiseptic properties of peroxide, 19 March 1884
pp.167-70 experiments on the reaction CaCl2 + H2SO4 = 2HCl + CASO4 in regard to recovery of HCl for making Cl.
pp.171-2 blank
pp.173-4 Feb.1884: experiments on Patent for bleaching brought out by J.B.Thomson, 1883.
p.175 blank
p.176 references to literature, for diagrams.
pp.177-82 blank
pp.183-4 notes on lines in prism spectroscope.
Inside back cover: cutting about Cowan's gelatino-chloride plates.

[G.Ansdell]  DEWAR/DB5b/3  1885-6

182 pp

Contents:
Laboratory notebook, MS
Notebook, 4½" x 7", with hard black cover. Includes:-
pp.1-3 analysis of limestone sent by S.Stubbs, 15 Oct. 1885.
p.4 blank
pp.5-7 calibrations of tubes
p.8 pressures of liquid fluoride of silicon taken with manometer.
pp.9-13 critical point of NO2 in sealed tubes, 7 Nov. 1885.
p.14 blank
pp.15-23 examination of the gases found in meteorites, 4 Jan. 1886
pp.24-5 gases in pumice stone
pp.26-7 gases in Dhurmsala meteorite, 16 Jan. 1886.
p.28 blank
pp.29-31 Dhurmsala meteorite, 22 Jan. 1886.
p.32 blank
pp.33-37 determination of gases in nodule of graphite taken from a meteorite which fell at Tolucca in Mexico
pp.38-9 references to papers on meteorites
pp.40-42 continuation of experiments on Tolucca graphite
pp.43-47 analysis of gases from specimen of pure Borrowdale (Cumberland) graphite from Mr Gregory
pp.48-9 analysis of gases from native graphite from the Alexandref Mine, Siberia
pp.50-51 analysis of gases from native graphite from Ceylon
pp.52-4 analysis of graphite from Mr Gregory's which had no label upon it.
pp.55-57 analysis of gases from Poltuck meteorite
pp.58-9 analysis of gases from Moco meteorite
pp.60-61 analysis of Dhurmsala meteorite
p.62 examination of celestial graphite from Tolucca meteorite after gases sucked out of it.
pp.63-4 blank
pp.65-8 examination of gases from Orgueil meteorite
pp.69-77 combustion of graphite in which gases had been determined.
pp.78-9 continued examination of Tolucca graphite
p.80 gases in celestial graphite after treatment with ether
p.81 gases produced by combustion of graphitic acid
pp.82-5 ceylon graphite
p.86 experiments with unknown graphite
p.87 blank
p.88 gases in unknown graphite treated with CS2.
p.89 specimen of graphite embedded in a matrix of Gueiss from Canada
pp.90-92 gases in matrix associated with Ceylon graphite
pp.93-105 examination of graphite produced in manufacture of caustic soda, Oct. 1886
p.106 blank
pp.107-12 treatment of Borrowdale graphite with H2SO4.
pp.113-29 blank
p.130 bitumen: determination of water and volatile products
pp.131-2 comparison of melting points of bitumen before and after distillation
p.133 determination of sulphur in crude EO bitumen before distillation
pp.134-5 distillation of 2nd quality Ottima Valley bitumen
pp.136-40 examination of products from bitumen obtained by a French chemist
pp.141-4 determination of ash in rock bitumen
pp.145-7 experiments with ordinary quality of bitumen
p.148 examination of second quality of shale marked EO
p.149-50 2 June 1886: examination of sample of elastic bituminous matter.
pp.151-54 examination of No.2 quality shale from Austria
pp.155-6 analysis of samples of shales from Austria, 31 May 1886.
pp.157-60 comparison of the three methods of estimating the amount of oxygen absorbed from permanganate of potash by waters, 16 May 1886.
p.161 Kjeldahl's method of estimating N in organic bodies
p.162 examination of samples of sewage and effluent delivered at the Laboratory on Friday evening June 4th.
p.163 examination of samples of waters delivered on 13 May 1886 for determination of organic matter; references to methods of estimating organic matter in water.
pp.164-6 examination of sewage from the Fleet sewer, 13 May 1886
pp.167-8 determination of available oxygen in crude sample of manganate of soda from the Jarrow Chemical Co., 6 May 1886.
p.169 blank
pp.170-73 experiments to try effect on calculation of the total organic matter in a water of adding different quantities of permanganate, 3 May 1886.
pp.174-5 examination of two samples of effluent received from Dr Tidy, 29 April 1886.
pp.176-80 analysis of two sherry wines received from R.W. Peregrine Birch, 27 Nov. 1885.
p.181 blank
p.182 experiments with concentrated effluent (continued from other book), 14 July 1885.

[? H.J.Orchard]  DEWAR/DB5b/4  1894-1900

63 pp

Contents:
Laboratory notebook, MS
Notebook, 3¾" x 6¼", with hard black cover, some pages cut out.
Labelled H.J.Orchard, 25 June 1900; Note Book No.16; various hands.
Includes:-
pp.1-9 photography at low temperatures, December 1894 to March 1895
p.10 blank apart from heading "series 2".
pp.11-12 low temperature photography, Jan. 1898
pp.13-16 experiments photographing by Rontgen rays and ordinary light on wet and dry plates, 1895-6
p.16 radiation, 11 Jan. 1898
pp.17-20 exposure of films to Rontgen rays and to liquid air, 19-21 Jan. 1898.
pp.20-21 exposure of dried film to incandescent light, 25 Jan.
pp.21-24 experiments to obtain data on intensity of various sources of light, 26 Jan. 1898
p.24 experiment to test effect of moisture on film, 29 Jan.
p.25 retrial of results of experiment of 26 Jan.; 31 Jan.
pp.26-4 examination of cooled films, with samples of films 1898-9.
pp.48-9 phosphorescence
pp.49-51 effects of exposing various crystals to liquid air, 11 Nov. 1899.
p.52 photographic experiment, 16 Nov. 1899
pp.53-5 phosphorescence, Dec. 1899
p.55 helium, 31 July 1901
pp.56-end blank; inside back cover - note on experiments with air under pressure, 15 Oct 1890

[?H.J.Orchard]  DEWAR/DB5b/5  1908

100 pp

Contents:
Laboratory notebook, MS
Notebook, 3¾" x 6¼", with black cover, marked inside back cover No.15, giving details of work on photographic action at low temperatures, 8 July to 13 October 1908; pp.31-end blank.

[James Dewar]  DEWAR/DB5b/6  undated

52 pp

Contents:
Laboratory notebook, MS
Exercise book, 6½" x 8", with soft green-grey cover, labelled gases in water. Includes:-
p.1 liquid air experiments
p.1v. list of Jean's diameters of molecules taken as spheres
pp.2-2v Phil.Mag., Dec.1904.
pp.2-2v specific heat
p.2v hydrogen compression experiments
p.3 calorimetry
p.3v pressure experiments on absorption of gas at -185°C
p.4 calorimetry
p.4v thermal evolution in successive portions of gas; test of new form of liquid air calorimeter
pp.5-6 calorimetry
p.6v absorption of H at -190°.
pp.6v-7 references to literature
pp.7v-19 absorption of gases by charcoal; absorption spectra, including helium and neon.
p.19v references to literature on composition of gases
p.20-2 absorption spectra
p.23 absorption experiments; analysis of well water
pp.23v-end absorption experiments

James Dewar  DEWAR/DB5b/7  undated

Contents:
Laboratory notebook, MS
Notebook, 6½" x 8", with marbled cardboard cover (damaged) and black spine; the first 10 pages only used. Includes notes on low temperature carbon dioxide experiments; with two loose sheets of notes inserted between pp.6-7.

Spectroscopy  DEWAR/Box DB6  1879-1912

Laboratory notebook  DEWAR/DB6/1  1879-82

180 pp

Contents:
MS; various hands
Notebook, 4½" x 6¾", black cover; back cover damaged and some pages damaged and stained; labelled no.3. Pages 136 to end written from the back and originally numbered 1-45. Includes:-
Frontispiece: table of contents
pp.1-7 rate of crystallization of super-saturated solutions, 29 April 1879.
p.8 blank
pp.9-10 16 May 1879: photographic materials used by Prof. Cornu in photographing Newton's Rings by means of spark between Mg points.
p.11 blank
pp.12-13 26 June 1879: estimation of nitrites in dilute solution of NaHO, through which air has been drawn from the electric are for ¾ hour.
p.14 blank
pp.15-21 estimation of nitrites in electric are
pp.22-25 28 June 1879: confirmatory test for nitrites by converting them into NH3 by means of Al.
pp.26-7 blank
pp.28-30 tests for nitrites
pp.31-2 tests for nitrites using De Meriten machine, July 1879.
pp.33-35 tests for nitrites using Jablochkoff candle
pp.36-38 tests for nitrites using Siemens machine
pp.39-48 tests using Jablochkoff candle
pp.49-50 blank
pp.51-55 12 July 1879: experiments on the formation of HCN by passing NH3 over heated charcoal.
p.56 blank
pp.57-64 17 July: experiments on formation of C2H2 and HCN at high temperatures
pp.65-8 25 July 1879: continuation of experiments of 17 July with apparatus adapted to make carbons stand the heating longer in electric arc
pp.69-73 28 July 1879: experiments to see if the HCN was formed by impurities in the C tube or by the direct union of the gases.
pp.74-77 29 July 1879: formation of HCN using NH4B2.
p.78 repeat of experiment of 29 July using NH4I.
p.79 blank
pp.80-82 30 July 1879: HCN experiments using arrangement described on p.69 amd passing through moist air.
p.83 blank
p.84 30 July: further experiment with NH4Cl as described on p.74.
pp.85-6 blank
pp.87-90 4 Aug. 1879: series of experiments to form HCN using Siemens carbon tube and arrangement described on p.69.
pp.91-93 continuation of experiments of 4 August but with one of the chilled carbons covered with Plaster of Paris and dried; 5 August 1879
pp.93-96 continuation of experiments using different tubes
p.97 blank
pp.98-100 7 Aug.1879: experiments using carbon treated directly with Cl in the arc
pp.101-2 8 Aug. 1879: HCN experiments with lamp covered with the annular tin vessel.
pp.102-4 experiments to see what quantity of water passed the drying apparatus
pp.105-113 Oct. 1879: experiments to try to get a dry atmosphere
pp.114-6 experiments with unpurified Siemens coppered carbon
pp.116-7 experiments to see whether absence of HCN in previous experiments 6 and 7 was due to the negative pole being hollowed out.
pp.117-9 experiments with specially purified Siemens carbons
pp.120-23 experiments with chilled Siemens carbons
pp.124-30 further HCN experiments
pp.131-5 blank
p.136 note on radiation from Jablochkoff candle and de Meritens machine
p.137 blank
pp.138-42 12 Nov. 1879: experiments to determine radiation of electric lamp.
pp.143-46 blank
pp.147-8 31 Oct. 1879: experiments on capillarity of liquid air
pp.149-54 experiments on heat evolved by Siemens machine [?Dewar]
pp.155-6 films
pp.157-8 striae of CO2 above critical point
p.159 soap solutions
pp.160-63 newton's rings between Nicols prisms
pp.164-68 examination of soap films by polarised light
pp.169-end notes on soap films

Laboratory notebook  DEWAR/DB6/2  July 1881-Oct 1882

68 pp

Contents:
MS; various hands
Notebook, 4" x 6½", with soft black cover; cover and bottom edges of pages damaged, entitled "Enumeration of spectra negatives and readings". Gives details of plates, using different apparatus and including water spectra and De Meritens in air. Includes work on magnesium, strontium, carbon, iron, aluminium and flames.

Laboratory notebook  DEWAR/DB6/3  1883-1888

80 pp

Contents:
MS (J.W.Heath)
Notebook, 4" x 7", with soft black cover; spine damaged. Entitled "Enumeration of spectrum negatives, 1887". Gives details of spectra obtained, with notes on apparatus and on trials for focus and of plates for photographing red end (17 Dec.1886, p.15).
Includes work on absorption by fluids and gases. At back of book notes on solutions, including iron (p.74-5), gilding solutions (p.73), petroleum (p71-2); trial of Vogel's eosene collodion plates (pp.68-70) and radiation experiment (p.73).

Laboratory notebook  DEWAR/DB6/4  1880-1883

160 pp

Contents:
MS; various hands
Notebook, 4½" x 7", with soft black cover; entitled "Arc spectra".
Includes:
Frontispiece: rough index of spectroscopic observations
p.1 measurements of theatre pendulum from floor to centre of light and from pulleys to floor; note on printing
pp.2-7 analysis of nickel, April-May 1880
p.8 calibration of tube; method of finding capacity of tube in cubic centimetres
p.9 method of finding volume of any gas contained in tube
p.10 experiment to show amount of heat acquired during shaking, 14 Oct.1880 (crossed out); calibration of tube
p.11 purification of chloroform, 30 Nov. 1880.
p.12 22 Nov.1880: soap solution; experiments with ice at high pressures
p.13-14 Nov-Dec.1880: compression of ice.
p.15 9 Dec. 1880: experiments with oleate of potash
p.16 Oleate of soda - specific gravity
pp.17-19 specific gravity of soap solutions
pp.20-21 notes for Christmas lectures, 1880-81.
p.22 15 Jan.1881: 70 cell battery image of carbon poles
pp.23-4 15 Jan.1881: Siemen's lamp in tin - ultra violet C; 18 Jan.: Siemen's reversals with Mg
pp.25-7 28 Jan.: hydrogen and Mg lines
pp.27-30 hydrocarbon and cyanogen lines
p.31 2 Feb. 1881: trial of horizontal carbon tube with movable carbon rod as piston.
p.32 3 Feb.: measurement of pressure
p.33 8 Feb.: NO2 absorption spectra
pp.34-37 18 Feb.1881: investigation of the Mg line between the 2nd and 3rd of the 7 Cu set.
pp.38-40 28 Feb.: preparation of phosphuretted hydrogen gaseous PH3.
pp.41-51 9 March: appearance of the B group
p.52 note on purification of naphthalene
pp.53-62 notes on B group
pp.62a-62b 6 May 1881: electrometer,deviation to R60
pp.62b-65 vertical poles; reversal of Na line.
pp.66-9 14 June 1881: B group - lime block, De Meritens machine + current of H through hollow pole.
pp.70-76 experiment with combined Siemens and De Meritens one behind the other
pp.76-81 examination of line near to the hydrogen C line
pp.81-3 notes on the K spectrum
p.83-8 25 July 1881: Mg in oxyhydrogen flame (p.86 blank)
pp.88-92 August 1881: notes on plates
p.93 calibration of tube to check gauge
p.94-5 angle readings on new spectroscope, 6 Aug. 1881.
p.96 MgO lines, 10 Aug. 1881
p.97 compression of gas tubes with fusible metal in top 26 Oct.
p.98 note on apparatus
p.99 heading only
pp.100-107 Jan. 1882: manometric and polarization experiments.
pp.107-9 March 1882: rough notes of experiments with NaC1, Cailletet tube, platinum wire.
p.110 analysis of ferro manganes
p.111 blank
p.112-4 March-April 1882: molten iron - E lines; compression; fusion of metals.
pp.115-6 July 1882: luminosity
pp.117-36 rough notes, chiefly work on chlorides, including low temperature observations
pp.137-47 notes on spectroscopic work, chiefly cyanogens; includes note on making liquid cyanogen (p.147)
p.148 report on photographs of De Meritens arc in gases, May 1883
pp.149-end calculations

James Dewar  DEWAR/DB6/5  1910-15

Contents:
MS notebook; first 14 pages only used
Spectrum notebook, 6¾" x 9", with dark red marbled cover and dark red leather spine and corners. Includes:
pp.1-4 June 1910: notes on series of plates taken with Hilger new quartz spectroscope, including incandescent gas, absorption through 100 mm of C1O2, liquid air, liquid air and Bath gas, plastic sulphur, exposure through quartz plates, spectrum through mica.
p.5 blank
p.6 metol hydrokinone developer
p.7 April 1912: work with large spectroscope - Wratten panchromatic plates
p.8 10 June 1915: experiments buring cordite in front of spectroscope.
p.9 blank
p.10 9-10 August: optical tests on unnamed specimen [?in connection with work on diffusion of gases].
p.11 blank
pp.12-14 1912: notes on spectroscopic plates.
With one loose page of notes on spectroscopic work (tubes cooled in liquid air) inserted at front of book.

James Dewar  DEWAR/DB6/6  ca. 1908

52 pp

Contents:
MS
Exercise book, 6½" x 8", with soft green cover; pages loose. Pages 40 to end blank. Contains notes on science education and the history of science and notes on scientific papers, including papers by Soddy, J.J.Thomson and Rutherford.

[G.D.] Liveing and [James] Dewar  DEWAR/DB6/7  30 Oct 1882

Contents:
Printed
On the circumstances producing the reversal of spectral lines of metals; Proc. Cambridge Philosophical Society, 4, part 5, pp.256-65 + 5 plates.

Rare gases, helium etc.  DEWAR/Box DB7  1885-1923

Laboratory notebook  DEWAR/DB7/1  1885-1903

164 pp

Contents:
MS; Various hands
Notebook, 4½" x 7", labelled "Notes on photographic development", with black cover. Includes:
Inside front cover: printed sheet giving charges for printing in silver, bromide and platinotype; Photographic Studio, Swanley. loose page of calculations.
p.1 missing
p.3 5 Aug.: comparison evaporation of air in Hg exhausted vessels and in vessels placed one inside the other with phosphoric anhydride between
p.4 capacity of capillary tubes
p.5 blank
pp.6-11 analysis of samples from Halifax sewage works, 1897
pp.12-13 liquefaction of Bath gas
p.14 calculations
p.15 calculations; refractive indices
pp.16-17 Nov. 1897: refractive indices obtained in liquid air
pp.18-19 Nov. 1897: notes on work with Rontgen rays
pp.20-21 photographs on film by Rontgen rays, cooled and not cooled
p.22 blank
pp.23-4 argon from Bath gas, 6 Dec. 1897; lines observed with Davy Faraday single + spectroscope
p.24 cyanogen tubes
p.25 liquid argon; nitrogen from F line
pp.26-7 helium tubes - cyanogen and nitrogen bands
pp.28-9 photographs by Rontgen rays in liquid air, Dec. 1897
pp.29-35 notes on plates
pp.36-7 Dec. 1897: notes on plates using new oxalate of iron developer.
p.37 7 July 1898: note that 50 cu.ft of Government hydrogen from Royal Ballooning Dept. used for liquid hydrogen trial
p.38 6 Aug. 1900: liquid hydrogen
p.39 7 Aug. 1900: purification of Bath helium; analysis of Paris air
pp.40-44 rough notes on fractionation experiments
pp.45-48 fractionation of Bath gas residues
pp.48-52 liquid air, Dec. 1900
pp.53-4 notes on tubes sent to Dr Liveing, 14 Dec. 1900.
p.55 liquid air
pp.56-8 notes on tubes sent to Liveing, Dec. 1900 and March 1901 with copy of accompanying note to Liveing and of request from Liveing, 13 March, for more tubes. note on helium thermometer.
p.58 note on helium thermometer.
p.59-65 fractionation experiments, including hydrocarbons, crypton and xenon.
pp.66-68 helium, Oct. 1901
pp.68 Oct. 1901: solubility of marsh gas in liquid air and oxygen
p.69-70 fractionation experiments
71-79 Nov-Dec. 1901: fractionation experiments, chiefly marsh gas.
p.80 Dec. 1901: experiments on formation of Ni(CO)4 under pressure
p.81-2 experiments to show velocity of the reaction and to show quantity of nickel carbonyl formed if nickel kept at 100°C.
p.82 examination of sample of calcined Bessemer Matte from Mond Nickel Co.
p.83 8 Feb. 1902: NiCO4 experiments
p.84-5 non condensible gas
p.85 June 1902: Gay Lussac experiment
pp.86-8 June-July 1902: liquefaction of hydrogen
p.89 28 July 1902: helium pump
pp.90-91 rare gases
p.92 14 Oct. 1902: new inverted vacuum
pp.93-5 fractionation of Bath gas
pp.96-8 helium
p.98 18 Nov. 1902: refractionation of residue from liquid air from Jenner Institute
p.99 bath gas
p.100 13 June 1901: hydrogen thermometer
p.101 capacity of receiver on helium pump
pp.102-8 helium
pp.109-10 Dec. 1902: notes on apparatus
pp.111-2 helium-hydrogen mixtures
pp.113 20 Dec. 1902: notes on tubes sent to Liveing inserted between pp.112-3: note by Dewar of circulation of He-Ne mixtures
p.114 Jan-Feb. 1903: refining helium from Bath gas
pp.115-6 blank
pp.117-8 films
pp.119-22 evolution of heat from Prof.Curie's radium, June 1903.
pp.123-9 films, chiefly work on radium, June-July 1903: inserted between pp.126-7, calculations, and between pp.128-9, note of experiments with radium, August 1903, to try to confirm Sir William Huggins' assertion that he had obtained a line spectrum
p.130 notes on hydrogen thermometer, 13 June 1901
p.131 density on nitrogen from Bath gas
p.132 note on hydrogen tube
pp.133-4 argon
p.135 density of hydrogen, 1898
pp.136-8 miscellaneous rough notes
pp.139-40 Jan. 1898: specific gravity
pp.141 blank
pp.142-3 preparation of orthochromatic plates
pp.144-64 photographic notes and references
Inserted at back of book: notes on bichromate of gelatin plates; notes on spectroscope; method of finding capacity of a sphere; printed note on developer, fixing solution and clearing solution

James Dewar  DEWAR/DB7/2  1898-1915

110pp + 3pp

Contents:
At back used; MS
Laboratory notebook, 4½" x 7", with black cover, labelled "Air rare gases: spectroscopic notes by Sir James Dewar. Includes some notes in other hands, pp.1-30, remainder of book in Dewar's hand and numbered from 1. Notes on rare gases; gases from Curie radium 1903 (Dewar p.1 et seq.); gases expelled from Na 1913 (pp.71-2); electrodeless water discharge tube: attempt to prepare same without small residue of permanent gas on condensing the water vapour by liquid air, (pp.73-8). Stuck inside back cover: note on experiments with electric are under pressure. 15 Oct. 1890.

H.Payne and others  DEWAR/DB7/3  1908-22

158 pp

Contents:
MS
Laboratory notebook, 4½" x 7", with black cover. Includes notes and drawings of apparatus, including syphons used in thermochemical work and liquid air machine. Includes note (p.150) of liquid air sent out in nickel flask, 1915.

Diary  DEWAR/DB7/4  1907

Contents:
MS & printed
Pettitt's Folio Diary for 1907. Mostly unused but containing a few experimental notes in unknown hand. Entries for 11 Jan - tube of neon; 14 Jan - experiment with helium liquefier using ethylene to cool the hydrogen; 21 Jan - helium; 24 Jan - capacity of helium liquefier; 7 Feb - helium; 13 Feb. - density of helium; 18 Feb. - helium; 24-6 Nov- fractionation of Bath gas; 30 Nov - experiments on rate of condensation of air and oxygen in copper tubes; 2 Dec.- experiment to determine composition of liquefied mixture of equal volumes of air and nitrogen; 9 Dec - helium; 10 Dec - purification of Bath gas, testing of helium pump and circuit; 19 Dec - liquid hydrogen (inserted - page of notes on cooling of liquids and gases and on liquid air).

Some Laboratory apparatus etc.  DEWAR/Box DB8  1881-1905

Laboratory notebook  DEWAR/DB8/1  1886-90

124 pp

Contents:
MS - various hands
Notebook, 4½" x 7", with black cover, labelled 13 "Analysis of oils notes on lamps and ventilation". Includes:
pp.1-6 notes on battery charging, dynamo working and lighting at the R.I.
pp.6a-6b blank
pp.7-8 lighting at R.I., 1886
p.9 blank
p.10 note on air shaft
pp.11-28 analysis of Russian petroleum oil at boiling points 90 C and 120 C; June 1889; specific gravity Russian oil, July.
pp.29 specific gravity sulphur oil, 20 July 1889
p.30 specific gravity of "Ohio" sulphur oil
p.31 specific gravity of Indian oil, distilled under pressure of 75 lbs.
pp.32-5 sulphur oil
p.36 blank
pp.37-42 estimation of sulphur in oils, July 1889
pp.43-46 distillation of sulphur oil, August 1889 includes notes in Dewar's hand.
p.47 estimation of sulphur in oil
p.48 estimation of sulphur in Redwood oil
p.49 Astarki oil, 7 August 1889
p.50 Redwood oil
p.51 estimation of sulphur in mixed distillate from crude Ohio under pressure of 5 atmospheres
p.52 Redwood oil digested with Na.
pp.53-5 determination of sulphur from distilled sulphur oil blank
55a blank
55b-57 continuous distillation of Astarki oil, Aug. 1889.
pp.58-9 determination of sulphur from sulphur oil
p.60-61 continuous distillation of Astarki oil, Aug. 1889
pp.62-3 sulphur oil
pp.64-5 continuous distillation of Astarki oil, Aug. 1889
p.66 note on products of distillation of Astarki oil sent to B.Redwood
pp.67-8 summary of sulphur determinations
pp.69-73 examination of fractions of sulphur oil
p.74 blank
pp.75-6 analysis of Black Sea crude oil
pp.77-8 analysis of Burmah oil, Jan-Feb. 1890
pp.79-80 analysis of Ecuador oil, Feb. 1890
p.81 distillation of Java oil, 26 Feb. 1890
p.82 Rosin oil, 1 March 1890
p.83-4 Baku oil, 7 March 1890
pp.85-6 distillation of Black Sea oil, March 1890
p.87 re-distillation of oil distilled at Bow
p.88 Burmah oil, 1 April 1890
p.89 Indian oil
p.90 Java oil
pp.91-3 analysis of Nobel crude oil called Astarki, Aug. 1890
p.94-end blank, apart from rough sketch on p.115
Inserted at back of book: distillation of Russian petroleum residue.

Workshop Note Book  DEWAR/DB8/2  1905-1919

125 pp

Contents:
MS; rest of book unused
Book, 8" x 12½", black cloth cover with leather spine and corners; written in various hands. Includes:
p.1 hydraulic compressions
pp.2-3 results of immersion of substances in American and Russian petroleum
pp.4-5 blank
pp.6-8 experiments on methods of obtaining charcoal
pp.9-11 blank
pp.12-13 electrolytic experiments with charcoal from coconut shell
pp.14-15 blank
pp.16-24 charcoal weighing experiments (absorption); additional page of experiments inserted between pp.16-17
pp.25-27 alumina absorption experiments
pp.28-31 low temperature experiments on breaking stress of steel, April 1905.
pp.32-3 compressions on para. C.N. from mercury cyanide, April-May 1906
p.34 blank
pp.35-44 hydraulic compressions of various substances, including compressions for charcoal thermoscope, 1919.
pp.45-74 blank
pp.75-83 exhaustion of and tests on vacuum vessels, 1913, 1915 and 1917. Inserted between pages 80-81, 75 sheets of rough notes concerning vacuum vessels and diffusion of gases through films.
p.84 blank
p.85 April 1918: some particulars of liquid air production; rough estimate of cost.
pp.86-102 blank
pp.103-22 1915: diffusion of gases through rubber film under pressure
pp.123-4 blank
p.125 heading only

Notebook  DEWAR/DB8/3  ca. 1886

40 pp

Contents:
MS
Black folder, 8½" x 13", with loose pages; various hands [including R.N.Lennox], giving details of calibration of gas measurer and analysis of gases in Sheffield waters.

James Dewar  DEWAR/DB8/4  1876-1897

360 pp

Contents:
Printed
Collection of papers by Dewar, with MS index. With loose page at front containing comment on Dewar's work on liquefaction of gases: MS, [hand unknown].

Bubbles  DEWAR/Box DB9  1917-1923

Notebook  DEWAR/DB9/1  1918-22

116 pp

Contents:
MS
Black notebook, 4" x 6½", including: inside front cover: note on film developer
p.1 bubble chains, 1918
p.2 blank
p.3 note on film enlargements and on print of metallic vacuum vessel.
pp.4-7 notes on prints made, including bubbles
p.8 notes on book illustrations
p.9 notes on lantern slides made, 1919
p.10 note of diagram photographed
pp.11-12 prints of bubbles and bubble chains
p.13 photographs of diagrams
pp.14-17 blank
pp.18-21 notes on films, chiefly bubbles and photographs of wires used for soap films
p.22 film of calorimeter and radiation apparatus
p.23 notes on printing of film
pp.24-5 lantern slides
p.26 book illustrations, 1920-21
pp.27-29 photographic methods; bubbles
p.30 slides taken in Lecture Theater
p.31 book illustrati ns
p.32 notes on photographic methods, 1922
pp.33-110 blank
pp.111-16 notes on cooled films, 1918

Notebook  DEWAR/DB9/2  ca. 1921

36 pp

Contents:
MS rest of book blank
Black book, 8" x 12½", with red spine, containing rough notes on soap films [chiefly by W.J.Green] stuck into the volume. Includes notes from article by K.F.Lindman, 1920 on rotation of polarisation (plane) of electromagnetic waves, inserted between pp.34-5. At front of book, note from Dewar to Green, 14 July 1921 1½pp, MS: suggests Green see what happens when film kept at low temperature is subjected to a rise in temperature.

Notebook  DEWAR/DB9/3  1918, 1921

33pp + 5pp

Contents:
MS, at back of book used
Brown notebook, 4" x 6¼", containing bubble chain calculations 1921, and, at back, bubble measurements, 1918.

File  DEWAR/DB9/4  1913-1930

A.S.C.Lawrence to [W.J.] Green  DEWAR/DB9/4/1  17 Sept. 1929

1½ pp

Contents:
Brighton MS
Thanks Green for letter. pleased to hear good news about the boy. Ostwald has accepted paper on stearolates and asked for copy of "Soap Films" for review; comments on this. Wrote to tell H.E. [Armstrong] how things were going; does not know if he will reply. Hopes to see Green in early October.

[W.J.Green]  DEWAR/DB9/4/2  [ca. March/April 1930]

4 pp

Contents:
MS
Draft of paper on [Stability in soap films].
With typescript & MS draft: 8pp, DB9/4/3; and typescript copies DB9/4/4-7

A.S.C.Lawrence to [W.J.] Green  DEWAR/DB9/4/8  17 April 1930

5½ pp

Contents:
Wandsworth Common typescript with MS additions by WJG
Has re-read Greens's paper [on stability of soap films] with great interest. Does not agree with conclusion that the disruptive action of surface tension is oversome by structural cohesiveness. Regards Perrin's stratifications as totally different from those Green suggest are akin; discusses this. Discusses stratified films. Does not think McBain would want Green's views on the interior structure put forward as an extension of his own; comments on this. His view is that stratification is essentially as type of crystallisation since it involves the suppression of the polar carboxyl groups which alone are responsible for the solubility of the soaps; comments on this. In black films all the water is held between the carboxyl groups inside each bimolecular layer; in stratified films does not believe there is any water in the bimolecular leaflets but thinks that the water expressed during the process of stratification remains between the individual leaflets. Discusses this. Comments on Green's remark that a large lowering of the surface energy in the production of the black state would explain the tumultuous development. Any liquid on a black film will be governed by its own surface tension. Real problem is why the close packed bimolecular layer is formed from the ordinary adsorbed layer.

[W.J.Green]  DEWAR/DB9/4/9  [April 1930]

4 pp

Contents:
Typescript with MS amendments Revised copy of [Stability in soap films].

A.S.C.Lawrence to [W.J.] Green  DEWAR/DB9/4/10  8 May 1930

6½ pp

Contents:
Cambridge MS
Has written to Illustrated London News suggesting they return the plates to Green. Agrees it is difficult to be satisfied that all the strength of a soap film is due to the two surface layers alone but the evidence all points that way; comments on this. Discusses his reasons for reluctance to admit stratification in all films; regards stratification as a transformation from a normal film to an abnormal one. With regard to critical blackening, has suggested that the slower that rate of fall, the larger the individual spots. Discusses surface tension of films. Refers to photographs and answers some of Green's tension of films. Refers to photographs and answers some of Green's queries about films. There is definite evidence that each pair of molecules in the black, is associated by carboxyl groups through a few molecules of water; impossible that there should be a bimolecular layer of this sort at the surface of the soap solution. Discusses this. Essential difference between their views is that he assumes the soap film to be nothing but a lump of soap solution, which, as it thins, undergoes certain changes at a critical point; Green postulates a structure ab initio but without giving enough information as to its origin; comments on this. Is anxious to know whether the black boundary is truly horizontal in a vertical film.

Nature  DEWAR/DB9/4/11  31 May 1930

Contents:
Printed
Nature, Vol 125, no.3161; includes article by W.J.Green "Stability in soap films", p.815.

A.S.C.Lawrence to [W.J.] Green  DEWAR/DB9/4/12  8 June 1930

1 p

Contents:
Cambridge typescript
Is enclosing copy of his reply to Green's article. Comments on reasons for the delay. Is enclosing McBain's article on adsorption in sodium oleate.
With reply to Green, 4 June 1930l 4¼pp typescript & MS; Dewar/D39/4/12a

A.S.C.Lawrence  DEWAR/DB9/4/13  28 June 1930

3 pp

Contents:
Printed
Reprint from Nature, 28 June 1930, of letter on stability in soap films, a reply to Green's letter, published 31 May.
With proof: Dewar/D39/4/13a

[W.J.Green]  DEWAR/DB9/4/14  25 June 1930

5¾ pp

Contents:
Royal Institution MS
Draft of article on stability in soap films, a reply to Lawrence's letter to Nature, published 28 June.
With typescript & MS draft, 6¼pp, Dewar/DB9/4/15. Further typescript draft, with MS amendments, 5¾pp, Dewar/DB/4/16, and copy, Dewar/DB9/4/17. With revised typescript copy, 1 July 1930, 6¼pp, Dewar/DB9/4/18

Nature to W.J.Green  DEWAR/DB9/4/19  3 July 1930

¾ p

Contents:
London typescript
Regrets cannot find space for such a long article referring to Lawrence's letter of 28 June. If Editor had thought Green's original article would have involved such lengthy correspondence, would have declined it. If Green can reduce length of letter, will try to make use of it.

W.J.Green to the Editor of Nature  DEWAR/DB9/4/20  3 July 1930

¼ p

Contents:
MS
Draft of letter thanking Editor for his letter and saying that he will submit shortened version of note.

[W.J.Green]  DEWAR/DB9/4/21  5 July 1930

3 pp

Contents:
MS
Stability in soap films. Letter of reply to that of Lawrence; condensed version of original letter.
With typescript copy, 3pp, Dewar/DB9/4/22.

A.S.C.Lawrence to (W.J.) Green  DEWAR/DB9/4/23  8 July 1930

½ p

Contents:
Cambridge typescript
Was sorry to miss Green at R.I. Is enclosing copy of letter. Will be interested to know if Green plans to reply to it. Green could collect sufficient material for paper on thinning of soap films generally; comments on this.

R. & R. Clark Ltd to W.J.Green  DEWAR/DB9/4/24  21 July 1930

1 p

Contents:
Edinburgh MS & printed
Account for reprints of paper on stability in soap films.

A.S.C.Lawrence to [W.J.] Green  DEWAR/DB9/4/25  25 July 1930

2 pp

Contents:
Cambridge typescript & MS
Thanks Green for proof of letter. Made no attempt to justify the "sandwich" theory but was solely concerned with refuting Green's idea of a stratified structure for every film. Discusses surface layers and their formation. Comments on the anchoring of solute to specific molecules. Discusses Green's suggestion that coloured clots are not drawn into the Gibbs' ring because they are on film and not in it. Much of difficulty Green experiences is due to regarding the whole business from the static point of view, whereas the whole thing is dynamic and any small additional kinetic effects superimposed have little effect. Comments on clarity of photograph he is enclosing.
With proof of Green's letter replying to Lawrence, with MS notes added [by Lawrence]; 1p, printed; Dewar/DB9/4/26.

Royal Institution  DEWAR/DB9/4/27  undated

1 p

Contents:
MS
Plan of old Physics Laboratory, with proposed alterations.

Royal Institution  DEWAR/DB9/4/28  undated

1 p

Contents:
MS
Plan of old Model Room, with proposed alterations.

James Dewar  DEWAR/DB9/4/29  1913

2 pp

Contents:
Printed
Part of paper describing calorimeters used for investigations in 1912. [Paper prepared by W.J.Green.]

[W.J.Green]  DEWAR/DB9/4/30  March 1923

14 pp

Contents:
MS
Notes of observations on films.

Berthelot and Moissan  DEWAR/Box DB10  1907

Marcellin Berthelot  DEWAR/DB10/1  1907

32 Leaves

Contents:
Printed & MS [mainly J.D.]
Notebook, 6¼" = 8", with green marbled cover, damaged; newspaper cutting of photograph of Berthelot stuck on front cover. Contains cuttings of obituary notices for Berthelot, MS notes on appointments, honours and publications. Inserted between pp.22v-23, MS notes about Berthelot's career.

Henri Moissan  DEWAR/DB10/2  1907

30 leaves

Contents:
Printed & MS [mainly J.D.]
Notebook, 6¼" = 8", with green marbled cover, loose. Contains cuttings of obituary notices for Moissan, with MS notes on his papers and work. Includes (p.20), copy of Royal Institution Resolution, 4 March 1907, offering condolences to Moissan's family.

Personal and biographical papers  DEWAR/Box DB11  1891-1924

File 1  DEWAR/DB11/1  1923-1924

John G.McKendrick to [H.E.] Armstrong  DEWAR/DB11/1/1  9 May 1923

¾ p

Contents:
Stonehaven MS
Refers to death of Dewar. Is enclosing book about his own life; draws attention to passage about Dewar.

John G.McKendrick to H.E.Armstrong  DEWAR/DB11/1/2  21 May 1923

½ p

Contents:
Stonehaven MS; postcard
Will be pleased to write some notes about Dewar when he is better.

John G.McKendrick to [H.E.] Armstrong  DEWAR/DB11/1/3  21 July 1923

3½ pp

Contents:
Stonehaven MS
Comments on Dewar's father. Comments on Dewar's temperament, referring to his quarrel with Ramsay and to his friendship with Dittmar. Comments on Dewar's attitude to his assistants. Refers to Dewar's work for the Highland Agricultural Society of Scotland. Comments on Dewar as a lecturer. Dewar was naturally very sleepless; comments on this. Comments on Dewar's love of music, particularly opera, and of poetry.

J.A.Fleming to [H.E.] Armstrong  DEWAR/DB11/1/4  14 May 1923

4 pp

Contents:
University College London MS
Comments on difficulty of writing biography of Dewar. Dewar was charming and hospitable but was not easy to work with "unless one gave way continually to his rather dominant personality". Comments on the thoroughness of his work and on Dewar's skill in tackling difficult problems. Discusses his own work with Dewar. Presumes an issue of collected works is contemplated.

J.D.Hamilton Dickson to [H.E.] Armstrong  DEWAR/DB11/1/5  21 May 1923

1¼ pp

Contents:
Cambridge MS
Is also trying to get information about Dewar's early life; comments on this. Hopes to be at R.I. in June; they can discuss matters then.

J.D.H.Dickson to [H.E.] Armstrong  DEWAR/DB11/1/6  29 June 1923

2 pp

Contents:
Cambridge MS
Discusses the violin which Dewar made. Refers to Dewar's work at Edinburgh University and on his appointments at the Royal Veterinary College, Edinburgh. Comments on the office of "chemist", which Dewar held at the Highland & Agricultural Society of Scotland, and on lectures which he gave while holding this post. Refers to Dewar's stay in Ghent and to model of benzene which Dewar made from Crum Brown's graphic representation and from which Kekule projected a solid model.

D'Arcy Thompson to [H.E.Armstrong]  DEWAR/DB11/1/7  1 July 1923

1 p

Contents:
The Athenaeum MS
When Dewar came to Edinburgh, he became lab boy to Lindsay; this led to his going on to Playfair. Comments on this.

William Stirling to [H.E.] Armstrong  DEWAR/DB11/1/8  11 July 1923

7 pp

Contents:
Manchester MS
In 1867-8 attended Playfair's lectures on chemistry, at which Dewar was lecture assistant; comments on this and on course of lectures for medical students which Dewar gave. Dewar changed little in personal appearance. Refers to Dewar's work with McKendrick. (Letter continued 12 July) Dewar ought to have had the Chair of Chemistry at Glasgow. Refers to Dewar's manipulative ability. Refers to the medical course.

John G.McKendrick to H.E.Armstrong  DEWAR/DB11/1/9  27 July 1923

1 p

Contents:
Maxieburn MS postcard
Thanks Armstrong for letter which fills gaps in Dewar's early life. Dewar was delicate in his early life. He chose his own curriculum and took no examinations. "All his life long he followed his own career."

Royal Institution (Henry Young) to H.E.Armstrong  DEWAR/DB11/1/9  22 Oct. 1923

2/3 p

Contents:
Albemarle Street typescript
Invites Armstrong to give discourse on the scientific work of Dewar on 1st February.

W:H.Bragg to [H.E.] Armstrong  DEWAR/DB11/1/10  23 Oct. 1923

1 p

Contents:
Royal Institution MS Is making up lecture programme. Armstrong's proposed lecture on Dewar should come first, on 18 January; asks if this would be convenient. Understands Young has auggested 1 February. Young agrees that 18 January would be better.

Charles D.Heycock to [H.E.] Armstrong  DEWAR/DB11/1/11  1 Jan. 1924

6 pp

Contents:
Cambridge MS
Is enclosing obituary notice of Dewar which he wrote for the Cambridge Review. Discusses the organic chemistry lectures which Dewar gave in 1876. "All this no doubt sounds very elementary but practically no organic had been taught here for Liveing would not admit that CH3COOH represented acetic acid." Dewar laid great stress on methods of finding the constitution of bodies and the general action of reagents on organic substances. Students did not do the work themselves in the laboratory; comments on this.
Comments on Dewar's 1875 lectures on Dissociation and Thermal Chemistry. "Later on he took to lecturing on anything he happened to be thinking about & although there was little continuity each lecture contained one or more gems which rivetted the attention of the more thoughtful men." Dewar was not very sympathetic with those who approached him with questions after a lecture. Comments on Dewar's with Liveing. The finest lecture he heard Dewar give was on Deville, at the R.I.; comments on this.

J.D.Hamilton Dickson to [H.E.] Armstrong  DEWAR/DB11/1/12  8 Jan. 1924

2 pp

Contents:
Cambridge MS Will not be in London for some time. Is enclosing note on the incident Armstrong referred to and his obituary notice of Dewar.
Refers to D'Albe's life of Crookes. Dewar was prizeman at the University for three years in mathematics and in natural philosophy Has not found any prizes Dewar received for chemistry.
With obituary notice: 8pp, printed; Dewar/DB11/1/12a.

J.D. [Hamilton Dickson] to H.E.Armstrong  DEWAR/DB11/1/13  11 Jan. 1924

1 p

Contents:
Cambridge MS; postcard
Lists prizes received by Dewar at Dollar Academy and at Edinburgh University.

John G.McKendrick to H.E.Armstrong  DEWAR/DB11/1/14  14 Jan. 1924

1 p

Contents:
Maxieburn MS; postcard
Pleased Armstrong had cleared up matters relating to [Dewar's] early days. Was sure he went first to Forbes. Dewar never told him about his prizes; comments on this. Does not think Dewar took a degree examination.

John G.McKendrick to H.E.Armstrong  DEWAR/DB11/1/15  19 Jan. 1924

1 p

Contents:
Maxieburn MS; postcard
Has always understood that Dewar went first to Forbes and then to Playfair. Pleased Armstrong is making progress with the Life.
Wishes it were possible for him to have a talk with Armstrong.

James Crichton Browne to H.E.Armstrong  DEWAR/DB11/1/16  20 Jan. 1924

6 pp

Contents:
London MS
Discusses Armstrong's lecture on Dewar and suggests some amendments. Thinks the lecture is admirable. Is delighted with Armstrong's bombardment of the static atom.

George Forbes to [H.E.] Armstrong  DEWAR/DB11/1/17  3 Feb. 1924

¾ p

Contents:
The Athenaeum MS
Armstrong can get information about Dewar's youth from Dewar's nephew at Dunblane.

Charles D.Heycock to [H.E.] Armstrong  DEWAR/DB11/1/18  3 Feb. 1924

1¼ p

Contents:
Cambridge MS
Gives details of events relating to the election of Dewar to the Jacksonian Chair.

Helen Rose Dewar to [H.E.] Armstrong  DEWAR/DB11/1/19  6 Feb. 1924

2 pp

Contents:
Cavendish Square, London MS
Cannot see Armstrong for a few days. Her sister is still very ill.

Helen Rose Dewar to [H.E.] Armstrong  DEWAR/DB11/1/20  14 Feb. 1924

2¾ pp

Contents:
Cavendish Sq, London MS
Has been ill; comments on this. Hopes to arrange to see Armstrong soon. Her sister is still very weak.

Helen Rose Dewar to [H.E.] Armstrong  DEWAR/DB11/1/21  19 Feb. 1924

2¼ pp

Contents:
Cavendish Sq., London MS
Suggests Armstrong visit on Wednesday or Friday. Comments on her illness. Pleased Armstrong and his wife had a pleasant weekend at Cambridge.

Helen Rose Dewar to [H.E.] Armstrong  DEWAR/DB11/1/22  10 May 1924

2 pp

Contents:
Cavendish Sq., London MS
Thanks Armstrong for sending her proof of the discourse. Would like to see Armstrong. Comments on her health.

Helen Rose Dewar to [H.E.] Armstrong  DEWAR/DB11/1/23  13 June 1924

2 pp

Contents:
Cavendish Sq., London MS
Thanks Armstrong for reprint of lecture. Will be pleased to see him when he can spare the time.

J.C.McLennan to H.[E.] Armstrong  DEWAR/DB11/1/24  16 Feb. 1924

1½ pp

Contents:
Toronto typescript
Is enclosing circular on helium prepared by the bureau of Standards, Washington. Pleased Armstrong's lecture went well.
Comments on work on liquid helium. Did experiments at the foot of Niagara Falls and it was interesting to see how the spray was charged up in such a way that an exposed wire could be shown to have high potentials; comments on this. Does not know much about thunderstorms; divisions have sprung up in science rather than turning the subject over to the meteorological physicists.

Dollar Academy (Elsie L.Robertson) to H.E.Armstrong  DEWAR/DB11/1/25  11 April 1924

1/3 p

Contents:
Typescript
Acknowledges letter about Dewar. Will bring the matter to the Headmaster's attention when school resumes.

Dollar Academy (Hugh F.Martin) to H.[E.] Armstrong  DEWAR/DB11/1/26  30 April 1924

1¼ pp

Contents:
Typescript
Does not have a very detailed record of Dewar. The Rev. Dr Gardiner recognised Dewar's ability and insisted he be sent to Dollar Academy. Dewar was a particular favourite of the Mathematics and Science Master, Dr Lindsay; comments on this.
Comments on Dewar's affection for and appreciation of the Academy.
His predecessor as Headmaster, C.S.Dougall, might be able to supply further information.

James Crichton Browne to [H.E.] Armstrong  DEWAR/DB11/1/27  7 May 1924

7¼ pp

Contents:
London MS
Is returning proof of article on Dewar; comments on this.
Comments on the title of article. Dewar's artistic gifts were always subsidiary to his scientific preoccupations. Dewar was a great natural philosopher but will be remembered as an experimental chemist. Sees no objection to the reproduction of the characteristic letter. Asks what would be the cost of a thousand reprints.

S.M.N.  DEWAR/DB11/1/28  21 March [?1924]

2¼ pp

Contents:
MS
Glass vacuum flasks. Notes on the supply of vacuum flasks before and during the war and on the situation following the war.

James Dewar  DEWAR/DB11/1/29  Undated [?]

6 pp

Contents:
MS [hand unknown]
Notes on Dewar's personality, with particular reference to his enthusiasm, his hospitality, his quarrelsomeness and his loyalty to his friends.

John G.McKendrick  DEWAR/DB11/1/30  [ca. 1924]

2 pp

Contents:
Typescript
The story of my life. Notes on his friendship and work with Dewar. Written on back of a history examination paper.

A.Henry Savage Eandor  DEWAR/DB11/1/31  [ca. 1924]

6 pp

Contents:
Typescript
Notes on James Dewar. Written on back of a chemistry examination paper.

File 2  DEWAR/DB11/2  1907-1920

[James Dewar] to W.J.Green  DEWAR/DB11/2/1  10 March 1907[?]

1 p

Contents:
MS
Has done a number of experiments to test working. By arranging to lower transparent screen into liquid air will test rough value.
Leslie tube will be easily used. Includes diagram of apparatus.

James Dewar to [W.J.] Green  DEWAR/DB11/2/2  21 June 1911

1 p

Contents:
MS
Bubbles had gone by 8.30. Condition of the atmosphere in the vessel after standing all night must be examined; comments on this.

James Dewar to [W.J.] Green  DEWAR/DB11/2/3  20 Sept. 1913

2 pp

Contents:
Dover MS
Hopes Green enjoyed his holiday. Comments on his illness. Green will have a lot to do to get things in order. The calorimeter has arrived so the silvering and "charcoaling" can go ahead. His wife has not been well and they will be glad to get home. All the Devy Faraday work has been completed.

James Dewar to [W.J.] Green  DEWAR/DB11/2/4  19 Dec. 1914

¾ p

Contents:
Royal Institution MS
After this year, because of the reduction of his income, all his "spontaneous gifts" will probably be ended.

[James Dewar] to W.J.Green  DEWAR/DB11/2/5  18 Feb. 1917

2/3 p

Contents:
MS
Does not want any change in the apparatus until the anomalies are cleared up. Discusses method of getting information about the effect of the internal reflection produced by the silvered surface.
With diagram of apparatus.

[James Dewar] to W.J.Green  DEWAR/DB11/2/6  5 Aug. 1917

2/3 p

Contents:
MS
As Government is making large quantities of Al2O3 for Al production Green should do the liquid absorption of the liquid air. Gas absorption was low. Left two sets of chains that have been black for 1½ days.

[James Dewar] to W.J.Green  DEWAR/DB11/2/7  3 Aug. 1917

2/3 p

Contents:
MS
Asks Green to subject the Government charcoal to H SO treatment; comments on this.

James Dewar to [W.J.] Green  DEWAR/DB11/2/8  7 Aug. 1917

2 pp

Contents:
Royal Institution MS
Gives details of work he wants done in connection with visit of War Office officials to get instruction on making charcoal vacuum vessels.

James Dewar to W.J.Green  DEWAR/DB11/2/9  8 Aug. 1917

¾ p

Contents:
MS
Discusses pressure gauge.

[James Dewar] to Lieut Rose  DEWAR/DB11/2/10  2 Nov. 1917

¾ p

Contents:
MS
Notes concerning Rose's request for help concerning the transfer of gas from one balloon to another and the development of a compressor to obviate disadvantages of the reciprocating type.

[James Dewar] to W.J.Green  DEWAR/DB11/2/11  15 April 1918

¾ p

Contents:
MS
Discusses work to be done with vacuum flask.
Verso: figures concerning leakage [?by Green].

[James Dewar] to W.J.Green  DEWAR/DB11/2/12  16 April 1918

2/3 p

Contents:
MS
Comments on work on cooling of C in vacuum flask, referring to conductivity factors and to reduction of gas packs.

[James Dewar] to W.J.Green  DEWAR/DB11/2/13  21 June 1918

¾ p

Contents:
MS
Discusses method of measuring pressure in 25 litre vacuum vessel.
Includes drawings of apparatus.

[James Dewar] to W.J.Green  DEWAR/DB11/2/14  25 June 1918

2/3 p

Contents:
MS
Comments on pressure readings of occluded gases in the carbon experiment. Calculations added by Green.

[James Dewar] to W.J.Green  DEWAR/DB11/2/15  8 March 1919

¾ p

Contents:
MS
Has not done much more with the cup experiments. Discusses further charcoal experiments which should be done. Includes diagrams of apparatus.

[James Dewar] to W.J.Green  DEWAR/DB11/2/16  15 March 1919

¾ p

Contents:
MS
Discusses changes needed in apparatus to enable gas pressure to be kept constant. Comments on use of a lead diaphragm and on work to be done with Ur crystals. Includes diagram of apparatus.
Sketch of diaphragm added [by Green].

[James Dewar] to [W.J.] Green  DEWAR/DB11/2/17  29 March 1919

2 pp

Contents:
Royal Institution MS
Quartz arrangement must be taken down and a return made to the vacuum syphon attachment; comments on this. Rock salt can be cemented easily by melted rubber so that it stands liquid air; discusses this. Will not interfere with soap bubble lecture.
Refers to stagnation at the R.I.

[James Dewar] to W.J.Green  DEWAR/DB11/2/18  31 March 1919

¾ p

Contents:
MS
Silvered glass vacuum vessel is only quick when super-heated.
All the tests done are misleading. Comments on examination to be made of vessel when outside immersed in liquid air. Outlines technique he wants Gibb instructed in concerning NaCl block and refers to new design of tubes. Drawing of apparatus added [by Green].

[James Dewar] to W.J.Green  DEWAR/DB11/2/19  13 June 1919

2/3 p

Contents:
MS
The AgCl is a good find. Comments on sample Pedder has. Refers to Ph from water or alcohol adhering to prism. Refers to equipment needed for work.

[James Dewar] to W.J.Green  DEWAR/DB11/2/20  23 Nov. 1919

1½ pp

Contents:
MS
Discusses bubble chain, commenting on requirements for lecture demonstrations.

James Dewar to [W.J.] Green  DEWAR/DB11/2/21  16 Jan. 1920

1½ pp

Contents:
Royal Institution MS
Comments on experiment with occluded gas in charcoal; no time t be spent in glass blowing or further combination experiments.
Comments on arrangement of apparatus. Refers to thermoscope experiments. The public must be shown work without mess or fuss about nothing - that is no good for the R.I. or science.
"Repose is what is needed.

James Dewar to [W.J.] Green  DEWAR/DB11/2/22  8 Feb. 1920

3 pp

Contents:
Royal Institution MS
Dulland has had wages raised; comments on this and on Dulland's work. Gives details of liquid air experiment to be done; if day is fine will repeat the experiment they did yesterday on roof.

[James Dewar] to W.J.Green  DEWAR/DB11/2/23  12 Feb. 1920

½ p

Contents:
MS
Comments on experiement to be done in connection with sky radiation.

[James Dewar] to W.J.Green  DEWAR/DB11/2/24  undated

1½ p

Contents:
MS
Discusses loss of liquid air by thermocoupler and comments on use of wire gauze in connection with vacuum vessels.

[James Dewar] to W.J.Green  DEWAR/DB11/2/25  undated

2/3 p

Contents:
MS
Comments on clearing up of the Davy Faraday Laboratory. Outlines work which Gibb should do. Has found only a small black book. Refers to chemicals he wants.

James Dewar  DEWAR/DB11/3  27 Feb. 1912

1¼ pp

Contents:
Edinburgh printed & MS
Copy of birth certificate of Dewar, extracted from Register of Births and Baptisms for the parish of Tulliallan, Perth.

Royal Institution  DEWAR/DB11/4  1921-2

12 pp

Contents:
MS
Notebook, 7" x 9", with hard blue cover, red spine; first 12 pages only used. Contains minutes of Committee set up to arrange for a presentation to be made to Sir James and Lady Dewar on the occasion of their Golden Wedding, 8 August 1921.
With programme of music at Golden Wedding celebration; 4pp, printed; Dewar/DBll/4/1.

Henry E.Armstrong  DEWAR/DB11/5  1924

32 pp

Contents:
Printed
James Dewar, 1842-1923. A Friday evening Lecture to the Members of the Royal Institution, on January 18, 1924.

Scott controversy, 1911; Gordon case, 1912-17  DEWAR/Box DCI  1911-1917

Bundle 1  DEWAR/DCI/1  1910-13

Contents:
Printed copies of correspondence and documents relating to the Scott case

[no title or date]  DEWAR/DCI/1/1

Contents:
Correspondence between Assistant Secretary, Treasurer, the President of the R.I. and Sir James Dewar, 7-12 Dec. 1912; 13pp, printed.

[no title or date]  DEWAR/DCI/1/2

Contents:
Correspondence between Mr Robert Mond, Hon.Secretary of the Davy Faraday Research Laboratory, and Members of the Laboratory Committee, 28 Dec.1912-30 Jan.1913; 10pp, printed.

[no title or date]  DEWAR/DCI/1/3

Contents:
Royal Institution: questions and replies of Counsel concerning powers of the Laboratory Committee, the Committee of Managers and the Committee of Visitors; August 1913. 9pp, printed.

[no title or date]  DEWAR/DCI/1/4

Contents:
Questions submitted to Sir Robert Finlay, K.C., M.P., and his Opinion thereon re Dr Alexander Scott: Whether Scott is entitled to hold appointment as Chief Assistant for life; whether appointment is subject to reasonable notice of determination; whether he has received reasonable notice and,if not, what is reasonable notice; terms of which Scott holds his appointment; terms of which Scott holds his appointment; steps which may be lawfully taken to prevent Scott's admittance to the Davy Faraday Laboratory if and when his appointment is determined. Jan.1911; 2pp, printed

[no title or date]  DEWAR/DCI/1/5

Contents:
Writ: Alexander Scott (Plaintiff) and the Members of the Royal Institution of Great Britain (Defendants), 18 March 1911; 28pp, printed.

[no title or date]  DEWAR/DCI/1/6

Contents:
Documents relating to the Davy Faraday Research Laboratory of the Royal Institution. Includes copy of Ludwig Mond's original proposal to found the Laboratory, 2 July 1894, copies of correspondence with Scott concerning termination of the office of Chief Assistant or Superintendent of the Laboratory 1910, statistics of research work 1896-1909, list of papers published by the Superintendent 1896-1910, statistics of expenditure of yearly income of £1705 granted under the Trust Deed of the Davy Faraday Laboratory. 45pp, printed.

[no title or date]  DEWAR/DCI/1/7

Contents:
Documents relating to the Davy Faraday Research Laboratory of the Royal Institution: Solicitors' correspondence in connection with the Scott case, 1911. 38pp, printed

[no title or date]  DEWAR/DCI/1/8

Contents:
Documents relating to the Davy Faraday Research Laboratory: further Solicitors' correspondence, Jan. 1911; 4pp, printed

[no title or date]  DEWAR/DCI/1/9

Contents:
List of papers published by Scott, 1896-1909; 3pp, printed

[no title or date]  DEWAR/DCI/1/10

Contents:
Letter from Dr Alexander Scott to the Hon Treasurer, 1 Feb. 1911; extract from Managers' Minutes, 6 Feb. 1911; correspondence with Sir Henry Cunynghame, Feb. 1911, concerning proposed agreement with Scott; extracts from Managers' Minutes, 6 March and 3 April 1911 concerning proposed agreement; correspondence with Treasurer, March-April 1911. 8pp, printed.

[no title or date]  DEWAR/DCI/1/11

Contents:
Authority given by the Director to Dr Scott to classify and put aside materials belonging to him in the Davy Faraday Research Laboratory, Feb. 1911. Continuance of correspondence between the Solicitors after the withdrawal of the Plaintiff's action, introducing the question of the claim on chemical products, Dec. 1911-Feb. 1912; 23pp, printed.

[no title or date]  DEWAR/DCI/1/12

Contents:
Report on the Davy Faraday Research Laboratory of the Royal Institution for 1911; 6pp, printed.

[no title or date]  DEWAR/DCI/1/13

Contents:
Proposed resolution by Sir James Stirling that £100 be paid to Scott in satisfaction of all claims against the R.I. and that Managers express regret that on abolition of office of Superintendent, adequate regard was not paid to the services rendered by Scott. 1p, printed

[no title or date]  DEWAR/DCI/1/14

Contents:
Memorandum of Agreement between the Royal Institution and Scott (draft), with Solicitors' correspondence concerning this, March 1911; 7pp, printed.

[no title or date]  DEWAR/DCI/1/15

Contents:
R.I. defence: 1911. 46pp, printed

[no title or date]  DEWAR/DCI/1/16

Contents:
Correspondence between Dewar and Scott, following request by Dewar for list of occasions on which Dewar used the Davy Faraday Laboratory, its materials and assistants for patent or legal work, March-April 1911; 9pp, printed.

[no title or date]  DEWAR/DCI/1/17

Contents:
Copy of 14.

[no title or date]  DEWAR/DCI/1/18

Contents:
Writ and Affidavits: Scott & R.I.; May 1911. 28pp, printed

[no title or date]  DEWAR/DCI/1/19

Contents:
Affidavit sworn by Scott in reply to that sworn by Dewar on 13 June 1911, 12 July 1911; 12pp printed.

[no title or date]  DEWAR/DCI/1/20

Contents:
Writ issued 18 May 1911: statement of claim by Plaintiff, delivered 2 Aug. 1911. 6pp, printed

[no title or date]  DEWAR/DCI/1/21

Contents:
Defence of R.I., delivered 19 Oct. 1911; 14pp, printed

[no title or date]  DEWAR/DCI/1/22

Contents:
Copy of Dewar/DCI/19.

Scott v. Members of the Royal Institution  DEWAR/DCI/2  1911

6 pp

Contents:
Printed
High Court of Justice, Chancery Division: Mr Justice Eve Copy of Documents relating to the Plaintiff's Cambridge appointment; papers published by him and as to his income.

Scott v. Members of the Royal Institution  DEWAR/DCI/3  1911

104 pp

Contents:
Printed
High Court of Justice, Chancery Division: Mr Justice Eve.
Copy of Correspondence and Minutes of meetings.

Scott v. Members of the Royal Institution  DEWAR/DCI/4  1911

23 pp

Contents:
Printed
High Court of Justice, Chancery Division: Mr Justice Eve.
Copy of General Resolutions showing powers of the Directors and Management of the Davy Faraday Research Laboratory

[Scott v. Members of the Royal Institution]  DEWAR/DCI/5  [1911]

3 pp

Contents:
Printed
Correspondence (copy) between W.P. Beale and Dewar concerning Scott controversy; Feb. 1911; copy of letter from Rayleigh to Mond, 2 July 1896, saying he saw Dewar and gathered "matters were not yet ripe for a decision on the question of the chief assistant".

[Scott v. Members of the Royal Institution]  DEWAR/DCI/6  [ca. 1913]

34 pp

Contents:
Printed
In the matter of the Royal Institution of Great Britain and in the matter of the Davy Faraday Research Laboratory: Case for the matter of the Davy Faraday Research Laboratory: Case for the joint opinion of Sir Robert Finlay & Mr J.Austen Cartmell

J.W. Gordon with Sir James Crichton-Browne  DEWAR/DCI/7  May 1912

13 pp

Contents:
Printed
Copy of correspondence between Gordon and Crichton-Browne concerning Crichton-Browne's remarks about the Visitors and the role of the Committee of Visitors.

J.W. Gordon with Royal Institution  DEWAR/DCI/8  April 1913-January 1914

50 pp

Contents:
Printed
Copy of correspondence concerning the role of the Visitors and Managers of the R.I., particularly in relation to the Davy Faraday Laboratory.

Royal Institution  DEWAR/DCI/9  6 August 1913

9 pp

Contents:
Printed
Questions and replies of Counsel concerning powers of the Laboratory Committee, the Committee of Managers and the Committee of Visitors. Additional copy: Dewar/DCI/1/3.

J.W. Gordon to Committee of Managers of the Royal Institution  DEWAR/DCI/10  17 Dec. 1913

4 pp

Contents:
Printed
Memorial of J.W. Gordon concerning the condition of the R.I., with particular reference to the responsibilities and duties of Sir James Dewar and to the salary paid to Dewar.
With notes on the Memorial, to form the basis of a reply to Gordon: 3pp, printed; Dewar/DCI/11.

Royal Institution with J.W.Gordon  DEWAR/DCI/12  2 Feb. 1914

1 p

Contents:
Printed
Copy of letter to Gordon informing him of the Managers' Resolution in reply to Gordon's letter of 17 December, stating that they have administered the affairs of the R.I. with a view to its best advantage. With copy of Gordon's acknowledgement of 3 February.

J.W.Gordon to The Duke of Northumberland  DEWAR/DCI/13  19 Oct. 1914

6 pp

Contents:
West Hampstead printed
Is sending proof of letter about the last Visitors' Report, which he proposes to circulate to Members of the Managers' and Visitors' Committees and to some others particularly interested in the affairs of the R.I. Aims to gain support for a Special Meeting of members. Discusses the Davy Faraday Laboratory, the dismissal of Dr Scott and the Visitors' Report for 1912.
Discusses Dewar's actions and role at the Davy Faraday Laboratory, With particular reference to the appointment of two men of German extraction (Alexander Siemens and Robert Mond).

Royal Institution  DEWAR/DCI/14  November 1914

15 pp

Contents:
Printed
Documents for Managers' Minutes. Includes copies of:
1. Duke of Northumberland to Chairman of Board of Managers, 29 Oct 1914, asking him to submit enclosure to Board. Has told Gordon he cannot regard such serious allegations as confidential but thinks it his duty to lay them before the Managers. With copy of Gordon's letter of 19 October.
2. J.W. Gordon, Hampstead, Nov 1914: letter seeking support for the calling of a Special Meeting of Members of the R.I. to obtain an explanation of reasons by Siemens was preferred to Sir William Crookes as candidate for Secretaryship of the Institution, to pass resolution acknowledging Crookes' services to the R.I., and to consider election of suitable candidate for office of Hon.Secretary.
3. [Duke of Northumberland to Gordon], Oct. 1914; acknowledging letter and enclosure and saying he considers it his duty to submit them to Managers of R.I. Gordon's insinuations about supposed treasonable activities at R.I. and by its officers are absolutely unfounded.
4. Resolution passed by Managers at meeting on 2 Nov. 1914 that no notice be taken of the "erroneous and misleading statements and insulting personal attacks" contained in Gordon's letter and enclosure. If a Special Meeting had been convened by the President as demanded by Gordon, it would constitute and irregularity of the laws and rules of the Institution.

J.W.Gordon to the Duke of Northumberland  DEWAR/DCI/15  31 Oct. 1914

2 pp

Contents:
West Hampstead printed
Acknowledges the Duke's letter of 29 October and objects to remark about his "insinuations"; comments on this. Agrees that the matters are serious. "But the violence which has culminated in the summary and unceremonious dismissal of an Officer of Sir William Crookes' standing and claims upon the gratitude of Members of the Institution, and in the repeated falsification of the Visitors' Reports, is a mischief so serious that I should despise myself if I did not use my utmost efforts to have it redressed." Note added: His Grace has no intention of answering this letter in the meantime.

Duke of Northumberland to Treasurer of the R.I.  DEWAR/DCI/16  3 Nov. 1914

1 p

Contents:
Printed
Acknowledges letter. Delighted the Managers are not taking any further steps with regard to Gordon's proceedings. Is enclosing copy of letter from Gordon, which he does not intend to answer. With letter from J.W. Gordon, 31 Oct 1914, received 3 Nov; 2pp, printed (continuation of Dewar/DC1/16); copy of Dewar/DCI/15.

J.W.Gordon  DEWAR/DCI/17  Nov. 1914

6 pp

Contents:
Printed; proof, subject to revision
Letter seeking support for a Special Meeting of Members of R.I. Copy of the letter included in Dewar/DCI/14.

Royal Institution  DEWAR/DCI/18  June 1915

12 pp

Contents:
Printed
Documents for Managers' Minutes: includes:-
1. J.W.Gordon to E.H.Hills, Secretary of R.I., 6 May 1915; 7pp. Discusses payment of a salary to the Fullerian Professor of Chemistry. Discusses the failure of the Royal Institution to make a contribution to the War effort.
2. E.H.Hills to Gordon, 7 May 1915: acknowledges letter which will be placed before the Managers.
3. J.W.Gordon, 1June 1915, inviting support at Meeting of Members to be held on 7 June for Resolution pledging support for Managers "in any steps which they may take for the purpose of turning to account the resources of the Royal Institution in men, money and materials for the promotion of the success of British Arms and the overthrow of the King's enemies in the present European War".
4. Letter from Gordon, which appeared in "The Standard" of 15 May 1915, outlining public service which the Royal Institution could undertake during the War and commenting on the R.I.'s record of public service to date.

J.W.Gordon to the Editor of The Standard  DEWAR/DCI/19  15 May 1915

2 pp

Contents:
Printed
Copy of letter included in Dewar/DCI/18.

Royal Institution  DEWAR/DCI/20  June 1915

8 pp

Contents:
Printed
Documents for Managers' Minutes: includes:-
1. War Office (Arthur M.Samuel) to Hon.Sec., 26 May 1915: asking for use of a laboratory for work on optical instruments.
2. E.H.Hills to Samuel, 28 May 1915, acknowledging letter which will be placed before Managers.
3. E.H.Hills to Samuel, 7 June 1915: refers to object of the Davy Faraday Laboratory under its Trust Deed and encloses information about admission to the Laboratory.
4. War Office (A.M.Samuel) to Hon.Sec., 8 June 1915: acknowledges letter. Asks if this means the Managers are unable to agree to the Department's request. Asks if he should send the Assistant Secretary a copy of his letter of 26 May asking for the assistance of the Davy Faraday Laboratory.
5. E.H.Hills to Samuel, 9 June 1915; purpose of letter was to inform him how S.D. Chalmers might get admission as a worker in the Davy Faraday Laboratory; comments on this.
6. War Office (Samuel) to Hills, 10 June 1915; comments on procedure for admission of Chalmers and refers to his original request for assistance. Does not appear advisable to press for the assistance of the R.I. or of the Davy Faraday Laboratory. Dr Ogilvie of the Science Museum has offered to place facilities at Chalmers' disposal.
7. A.L.M.Turner to Secretary, R.I., 10 June 1915: understands that at Meeting of Members of R.I., Resolution that
r. Resources of the R.I. should be placed at the disposal of the Secretary of State for War, was not allowed to be discussed and to go forward to a vote. Protests about this action by the Chairman.
8. Assistant Sec. R.I. to Turner, 11 June 1915; acknowledging letter and saying it will be placed before the Managers.

Royal Institution  DEWAR/DCI/21  June 1915

2 pp

Contents:
Printed
Minute of Managers on the Gordon correspondence. Refers to Gordon's letter of 6 May and his letter to "The Standard"; similar questions were raised at Members Meeting when motion proposed by Gordon did not find a seconder. Gordon referred to salary of Fullerian Professor: Managers have power under Bye-laws to give salary to Fullerian Professor and have done so under Resolution of 1877. Quotes Gordon's resolutions concerning assistance with War effort. Managers legally advised that they are not entitled to take any action of the kind proposed by Gordon. The Managers will give every possible aid to the solution of experimental scientific problems submitted to them on behalf of the War Office.

J.W.Gordon  DEWAR/DCI/22  1 June 1915

2 pp

Contents:
Printed
Invites support for Resolutions concerning R.I. contribution to the War effort. Copy of letter included in included Dewar/DCI/18
With further copy: Dewar/DCI/23.

Royal Institution  DEWAR/DCI/24  June 1915

7 pp

Contents:
Printed
Speech by Sir James Crichton-Browne, Chairman at the General Meeting of the Members of the Royal Institution, on 7 June 1915, saying he cannot allow Mr Gordon's Resolution to be put to the Meeting in its present form as it is not in conformity with the Charter, Act of Parliament and Bye Laws. Discuses this and the R.I.'s contribution to the War effort.

Royal Institution  DEWAR/DCI/25  June 1915

2 pp

Contents:
Printed
Documents for Managers' Minutes: includes:-
1. E.H.Hills to J.W.Gordon, 7 June 1915: Managers have considered Gordon's letter of 6 May, and have already answered that part relating to the salary of the Fullerian Professor of Chemistry. Answer to letter of 1 June has been conveyed to Members.
2. J.W.Gordon to Col.Hills, 8 June 1915: acknowledges letter. Wishes to reiterate protest against Chairman's ruling and the stopping of discussion of resolution.
With copies of document: Dewar/DCI/26 & 27

Royal Institution  DEWAR/DCI/28  June 1915

6 pp

Contents:
Printed
Extracts from The Standard, June 1915. Editorial, 14th June: "Royal Institution and the War". Letter from J.W.Gordon to the Editor, 15 June 1915: suggests address to The King by members of R.I. who think steps should be taken to use R.I.'s resources "for promoting the success of British arms and the overthrow of the King's enemies in the present European War".

Royal Institution  DEWAR/DCI/29  June 1915

1 p

Contents:
Printed
Copies of correspondence.
1. James Crichton Browne to A.L.M.Turner, 18 June 1915: refers to Turner's letter of 7 June to the Secretary of the R.I. about his, Crichton Browne's action at Members Meeting of 7 June. Statement is a libel and he has no doubt Turner will withdraw it.
2. Turner to Crichton Browne, 20 June 1915, withdrawing remarks and apologising for them.

Royal Institution  DEWAR/DCI/30  2 July 1915

2 pp

Contents:
Printed
Document for Managers' Minutes. Copy of letter frp, J.W.Gordon quoting Parliamentary question and answer concerning application to Royal Institution by War Office for use of a laboratory, and saying that he proposes to draw attention to this at the next Monthly Meeting of Members and to ask for a full explanation of the circumstances and the production of the correspondence mentioned.

Royal Institution  DEWAR/DCI/31  1917

24 pp

Contents:
Printed
Professorial correspondence with the Board of Invention and Research concerning the charcoal vacuum process and the Board's proposed investigation on the production of high vacua by the use of charcoal and liquid air and assistance given by the Royal Institution in this work: 7 Feb.-15 April 1917.

Royal Institution  DEWAR/DCI/32  24 May 1917

2 pp

Contents:
Printed
Special General Meeting. Requisition that Special General Meeting be called to consider proposal that £5000 be invested on behalf of the R.I. in War Loan. Special General Meeting to be held on 4 June to consider the proposal. Note added that as many Members are likely to be away on 4 June, motion will be made at the Special Meeting to adjourn to 2 July.
With copy of minutes of Special General Meeting: 1p, duplicated.
Adjournment motion not passed. Proposal contained in the Requisition moved and seconded and after discussion unanimously negatived. DEWAR/DCI/33.

Royal Institution  DEWAR/DCI/34  2 Sept 1917

6 pp

Contents:
Printed
Rough précis of information given by Sir James Dewar to Captain Flack for the use of the Air Board, concerning vacuum vessels.

Early Scott case, 1891-2; Ruhemann controversy  DEWAR/Box DCII  [n.d.]

Letters  DEWAR/DCII  1878-1935

James Dewar to [Alexander] Scott  DEWAR/DCII/1  15 Dec 1878

12/3 pp

Contents:
Royal Institution MS
Pleased Scott has taken the position. Must make Trinity feel that Scott is identified with the chemical department and essential to its progress. Asks Scott to look at Robert Angus Smith's book on rain; comments on this.

James Dewar to [Alexander] Scott  DEWAR/DCII/2  22 Jan 1879

2 pp

Contents:
Morley's Hotel, London MS
Paper was read at the Royal Society. Discusses paper by Lockyer on the spectrum of Na. Asks Scott to let him know the results of Na.

James Dewar to [Alexander] Scott  DEWAR/DCII/3  1 March 1879

4 pp

Contents:
Morley's Hotel, London MS
Comments on experiments to be done with Na and K. Their experiments with the magnetic machine have been very successful. Pressure he has brought on the R.I. assistants has had some good effect. Refers to work being done by Ansdell on CO2 and CuH2. With formulae added.

James Dewar to [Alexander] Scott  DEWAR/DCII/4  25 July 1879

4 pp

Contents:
Morley's Hotel, London MS
Asks how the IO3 and C3 CN3 experiments are progressing. Wants repeated quantitatively experiments "of action of NaCuH5O of C10H7N.C2H5I resulting in the formation of C2H5.NH2"; comments on this and discusses the work on picoline.

James Dewar to [Alexander] Scott  DEWAR/DCII/5  30 July 1879

1 pp

Contents:
Royal Institution MS
Is anxious to hear results of experiments he wanted Scott to do.

James Dewar to [Alexander] Scott  DEWAR/DCII/6  4 Aug 1879

3 pp

Contents:
Morley's Hotel, London MS
Thinks V. [?Meyer] will be down on them once the vapour densities of K and Na appear. All V.[?Meyer]'s results may be in part due to the action of Pt on the porcelain; discusses this and outlines experiment for Scott to try. Asks results of picoline work.

James Dewar to [Alexander] Scott  DEWAR/DCII/7  5 Aug 1879

3 pp

Contents:
Morley's Hotel, London MS
Tells Scott to give up the Cu3Cl3 experiments. More important to be able to speak at the B.A. on Meyer's work "which will be the great sensation of the Meeting". Discusses work ot be done in this connection.

James Dewar to [Alexander] Scott  DEWAR/DCII/8  6 Aug 1879

4 pp

Contents:
Morley's Hotel, London MS
Comments on availability of porcelain vessels. Gives details of vapour density experiment he wants done and asks Scott to let him have the results quickly.

James Dewar to [Alexander] Scott  DEWAR/DCII/9  9 Aug 1879

3 pp

Contents:
Morley's Hotel, London MS
Asks Scott to let him know how experiments are progressing. Dittmar suggests action is 2ClCl=ClCl+Cl+Cl; comments on this. No reason why the dissociation should be as complex as Meyer makes it; discusses this.

James Dewar to [Alexander] Scott  DEWAR/DCII/10  [Aug 1879]

3 pp

Contents:
Cambridge MS
Wants Scott to try oxidised bottle with free I and AgI; comments on this. His object is to get free I; outlines way in which this might be done. The test for free I must be to be able to blow it out with CO and CO2; comments on this.

[James Dewar]  DEWAR/DCII/11  [ca. 1880]

4 pp

Contents:
MS; part of letter
Gives details of experiments with nitrous oxide.
With undated note (2pp) ?by Scott concerning loss of CH4 on explosion. DEWAR/DCII/13

James Dewar to [Alexander] Scott  DEWAR/DCII/14  [ca. 1881]

2 pp

Contents:
Royal Institution MS
Asks Scott to send him the corrected analyses, of NH4Br. Must express some opinion on the question of Brock's [?] Law. Suggests drawing curve to show + and - values relating to atomic weights; comments on this.

James Dewar to [Alexander] Scott  DEWAR/DCII/14  [ca. 1883]

2 pp

Contents:
MS
Has been studying Marignac's paper on manganese; discusses this. Comments on Stas's new paper concerning chlorides. Asks Scott to send him results of experiments.

James Dewar to [Alexander] Scott  DEWAR/DCII/15  31 May 1883

3½ pp

Contents:
Royal Institution MS
Results are interesting. Suggests Scott prepare a description of the method. Suggests they take Stas's value for NH4; comments on this. Plans to send a copy of the paper in French to Dumas. Is to visit Greenwich Observatory. Comments on work he wants Scott to do. Comments on simplest way of stating results.

James Dewar and Alexander Scott  DEWAR/DCII/16  1883

1¼ pp

Contents:
Printed
On the molecular weights of the substituted ammonias.

James Dewar to [Alexander] Scott  DEWAR/DCII/17  23 May 1884

1¾ pp

Contents:
Royal Institution MS
Invites Scott to dine with him so that they may have a long talk. Was sorry to learn of Scott's great trouble.

James Dewar to [Alexander] Scott  DEWAR/DCII/18  4 Aug 1888

2 pp

Contents:
Royal Institution MS
Masson has published more than twenty testimonials; comments on this. Japp is also a candidate but does not think he will have much of a chance. Asks Scott to let him know what is going on. Asks if he did anything with Playfair.

James Dewar to [Alexander] Scott  DEWAR/DCII/19  27 Sept 1888

¾ p

Contents:
Royal Institution MS
Thinks the testimonials are very strong. Asks if he can do anything.

James Dewar to [Alexander] Scott  DEWAR/DCII/20  2 Dec 1890

3¾ pp

Contents:
Royal Institution MS
Thinks Scott can "make no more" out of Durham, which he feels is too far from "the world of scientific intrigue" and where Scott's time is too occupied for him to do much original work. Cambridge would be better if Scott were given an adequate salary; comments on this. Cambridge is different since they have the new laboratory and the much increased Medical School. Will mention the matter of the electric lighting to Crompton. Has finished the Cambridge lectures and is beginning the Christmas preparations.

A.S.Lea to [Alexander] Scott  DEWAR/DCII/21  14 Dec 1890

4 pp

Contents:
Caius College, Cambridge MS
Asks if, when Scott was Dewar's assistant, he was employed to carry out analyses for Dewar which were for purely commercial purposes; asks for details. May have to consider Dewar's action in using the University laboratory and appliances for purely commercial work. Asks if Scott could send a good man to try for scholarship in natural science at Caius; "we never get a really strong man and we want one". They are going ahead in the Biological School but Chemistry is rather stagnant as regards the turning out of chemists.

James Dewar to [Alexander] Scott  DEWAR/DCII/22  2 Aug 1891

2 pp

Contents:
Cambridge MS
Asks Scott to look at enclosure and return it with any additions he wants. Will see about the Peterhouse rooms and arrange for Scott to dine in Hall. Scott must lecture on advance organic chemistry. Comments on lectures.

James Dewar to [Alexander] Scott  DEWAR/DCII/23  8 Aug 1891

4 pp

Contents:
Royal Institution MS
Sees no need to elaborate enclosed agreement; comments on this. "All I am interested in is to maintain harmony of work and mutual good feeling." Above all, wishes to maintain reputation of the University Chemical Department. Scott need not worry about the opposition to the Regulations for the Jacksonian assistant. He and Liveing have stated that they would never accept a successor on similar terms. Must not allow Caius College to get a monopoly of teaching organic chemistry; comments on this. Comments on Scott's use of Peterhouse rooms. Suggests Scott has a rest before coming to Cambridge. Fellows of Peterhouse will be pleased to have Scott at the Fellows table. Wicks left a year ago and Liveing said that Ruhemann was going to take the junior assistant with him; comments on this.

With agreement  DEWAR/DCII/23a  8 Aug 1891

2 pp

Contents:
MS declaration by Dewar that in the event of Scott returning to Cambridge to discharge duties in relation to the Jacksonian Chair, he (Dewar) will be responsible for the payment of Scott's salary until a settlement is reached concerning the respective contributions of the University and the Chemical Laboratory towards this. On understanding that Scott will undertake such chemical duties as ewar requires at Cambridge, Dewar will contribute £100 a year towards his salary. Dewar will not expect Scott to be resident throughout the long vacation.

James Dewar to [Alexander] Scott  DEWAR/DCII/24  6 Oct 1891

4 pp

Contents:
Royal Institution MS
Will be at the Laboratory on Thursday. Asks Scott to see about organic textbooks; need to make a selection for class purposes. Asks him to look at his supplies for lecture illustration. Comments on the courses. Refers to the [Ruhemann] controversy; has had the correspondence and documents printed.

James Dewar to [Alexander] Scott  DEWAR/DCII/25  8 Ocy 1891

3¼ pp

Contents:
Royal Institution MS
His idea to have Scott called "Demonstrator" might be used by his enemies to link Scott with him; comments on this. Thinks they should let matters rest unless Scott has any strong feeling about it.

James Dewar to [Alexander] Scott  DEWAR/DCII/26  11 Nov 1891

3¾ pp

Contents:
Royal Institution MS
Thinks they must try direct titration of the tin by iodine in an alkaline solution; discusses this, commenting in particular on Sutton's method and also referring to the Liebmann method. Outside opinion of the Cambridge dispute seems to be that the Chemical Department is deficient in lecturing ability so as to interest the men in organic chemistry; comments on this.

James Dewar to [Alexander] Scott  DEWAR/DCII/27  31 Jan 1892

3½ pp

Contents:
Royal Institution MS
He fully expected what Scott told him. The sooner the University becomes acquainted with the boycotting and other facts the better. Those who know the facts should speak out. Comments on the [Ruhemann] controversy.

James Dewar to [Alexander] Scott  DEWAR/DCII/28  22 Feb 1892

2 pp

Contents:
Royal Institution MS
Discusses work on bases. The laboratory must produce some new papers.

James Dewar to [Alexander] Scott  DEWAR/DCII/29  8 May 1892

2 pp

Contents:
Cambridge MS
Enclosure shows that the chemistry lecturer in organic is doing well in advertisement. He ought not to have allowed the laboratory research work to have stopped. Does not see why Scott should not take a class in addition to the advanced organic class. Publications from the laboratory are needed.

James Dewar to [Alexander] Scott  DEWAR/DCII/30  25 May 1892

3½ pp

Contents:
Royal Institution MS
Is enclosing cheque for salary. Wants Scott to look into the question of the purity of the hydrogen from the action of KHO in formate or oxalate; discusses this.

James Dewar to [Alexander] Scott  DEWAR/DCII/31  3 Dec 1894

3½ pp

Contents:
Royal Institution MS
Is sending Fe tube so that chemical N can be treated easily and well. Discusses the tube.

James Dewar to [Alexander] Scott  DEWAR/DCII/32  5 Dec 1894

3¼ pp

Contents:
Royal Institution MS
Finds all Dunstan's work unsatisfactory. Must try to concentrate the product or find out what they are really doing. Wants to know what amount of Rayleigh's product they get in the flask. Discusses experiments which might be done on N.

James Dewar to [Alexander] Scott  DEWAR/DCII/33  7 Dec 1894

4 pp

Contents:
Royal Institution MS
Tells Scott to look at report of Chemical Society meeting published in the Times. Important to get more flasks filled with N treated with Mg; comments on this. Wants the matter confirmed by better samples before his abstract appears. Comments on way in which samples of the unknown gas may be obtained.

James Dewar to [Alexander] Scott  DEWAR/DCII/34  18 July 1895

3½ pp

Contents:
Royal Institution MS
Scott should let it be known that he (Dewar) had nothing to do with the article in the New Science Review; discusses this. Does not want ill feeling with Rayleigh. Asks what progress has been made with the flasks. Wants to do some experiments with them before the end of the session.

James Dewar to [Alexander] Scott  DEWAR/DCII/35  24 July 1895

2 pp

Contents:
Royal Institution MS
Asks how Scott has got on with the flasks. Refers to abstract by Bryan to whom he has written drawing attention to Wroblewski's 1889 paper.

James Dewar to [Alexander] Scott  DEWAR/DCII/36  8 Aug 1895

4 pp

Contents:
Royal Institution MS
Asks Scott to get some flasks filled with nitrous oxide; discusses this.

James Dewar to [Alexander] Scott  DEWAR/DCII/37  14 Aug 1895

4 pp

Contents:
Royal Institution MS
Hopes to test the nitrous oxide flasks tomorrow. The two flasks brought back contain residue after liquified air sealed off. Is anxious to have percentage of oxygen accurately determined; discusses this. Discusses results of resistance of Bi down to solid air. Comments on Mrs Dewar's illness.

James Dewar to [Alexander] Scott  DEWAR/DCII/38  8 May 1896

3½ pp

Contents:
Royal Institution MS
Anxious to know how the assistant is getting on with the petroleum tensions. Wants to inform the Parliamentary Committee of these facts; discusses this and experiments to be done.

James Dewar to [Alexander] Scott  DEWAR/DCII/39  7 June 1896

4 pp

Contents:
Royal Institution MS
Mendeleeff is to be examined before the Petroleum Committee. Wants to know results of the relative tension, with the large vaccum space, of the types of oils; discusses this. Had planned to come to Cambridge but has to show experiments and liquid air at the Ladies' Soiree. Professor and Mrs Banker have arrived from Philadelphia. All the foreign scientific delegates for the Kelvin Jubilee will be passing through London. Refers to low temperature work.

James Dewar to [Alexander] Scott  DEWAR/DCII/40  16 Jan 1898

31/3 pp

Contents:
Cambridge MS
There is a feeling that the Davy Faraday is not being directed "in the spirit of the R.I.". A report of the work of the Laboratory must be made to Members through the Proceedings. Everything must be done in the best interests of science and any tendency to make the place like a private laboratory be avoided. The closing of the laboratory for nearly a month at this time of year has been remarked on; comments on this. If Scott wants his friends to get the F.R.S. for him, a paper for the Royal Society is needed.

James Dewar to [Alexander] Scott  DEWAR/DCII/41  25 Oct 1898

2¼ pp

Contents:
Royal Institution MS
Does not think Scott has selected a good subject for a Friday evening; comments on this. In discussing C2H2, Scott would not be using original research material of his own. A wider subject such as the modern position of the periodic laws would give him more scope.

James Dewar to [Alexander] Scott  DEWAR/DCII/42  1 Dec 1898

1½ p

Contents:
Royal Institution MS
Asks Scott to sublime the I into the wide tube and to drop the tubes suddenly into water at 50°. Wants to avoid any I getting condensed in the narrow tube at the top. Told Bramwell that Scott would prefer to give the Friday discourse next year unless he can take C2 H2.

James Dewar to [Alexander] Scott  DEWAR/DCII/43  26 Aug 1902

1 p

Contents:
Royal Institution MS
Any letter to the new assistant will require his careful consideration. The position is rather difficult.

James Dewar to [Alexander] Scott  DEWAR/DCII/44  28 Aug 1904

21/3 pp

Contents:
Cambridge MS
In Proceedings of American Philosophical Society of Philadelphia, Richards criticised Scott's methods of handling the atomic weight of nitroben. Quotes criticisms. Scott will have to say something for or against these views.

James Dewar to [Alexander] Scott  DEWAR/DCII/45  15 Nov 1908

4 pp

Contents:
Cambridge MS
Has stopped further trouble about the conduct of Lennox. Discusses Lennox's engineering interests outside the R.I. and the effect of these on the scientific work of the R.I. Lennox has resigned. Blames himself for not finding out everything sooner and for being "so long suffering and slow to anger". Comments on situation concerning firms which dealt with R.I.; need to start afresh with new people. Has told the managers but does not think all future trouble has been removed.

James Dewar to [Alexander] Scott  DEWAR/DCII/46  18 March 1911

2½ pp

Contents:
Royal Institution MS
Instead of sending a Laboratory return as requested, Scott has sent a copy of the document he addressed to the Managers of the R.I., with a covering letter. Quotes and comments on Scott's reference to research work done in the Laboratory and his remark that assistants "should not be employed for Patent or Legal work undertaken for the enrichment of individual persons". Asks Scott to send the return he requested.

James Dewar to [Alexander] Scott  DEWAR/DCII/47  23 March 1911

21/3 pp

Contents:
Royal Institution MS
Scott now refuses to discuss the question of the "paragraph" further. The paragraph" was understood by the Managers to refer to the Director; comments on this, referring particularly to remark about work done "for the enrichment of individual persons". Comments on the Laboratory return he requested.

James Dewar to [Alexander] Scott  DEWAR/DCII/48  1 April 1911

1¾ pp

Contents:
Royal Institution MS
Correspondence must end. Scott's letter of 30 March contains nothing but prevarication. Suggestion seems to be that he, Dewar, took precautions to ensure that no record of work done should be known; discusses this. Comments on letter in which Scott said that in the event of his being made a Director, the work of the Laboratory should be confined to original research.

James Dewar to [Alexander] Scott  DEWAR/DCII/49  27 Feb 1911

½ p

Contents:
Royal Institution MS
Asks him to make out list of apparatus he is using and suggests he label the items. Asks Scott to put aside for inspection apparatus and chemicals which he claims are his own property.

H.R.Dewar to [Alexander] Scott  DEWAR/DCII/50  21 July [?]

3 pp

Contents:
Royal Institution MS
Thanks Scott for photograph of her husband in the Laboratory. Asks if Scott would take a photograph of her; discusses this.

Alexander Scott to Trustees of Sir Josiah Mason's Science College, Birmingham  DEWAR/DCII/51  Dec 1879

2 pp

Contents:
Cambridge MS
Application for Chair of Chemistry at the College. With MS amendments [by Dewar].

James Dewar  DEWAR/DCII/52  20 Dec 1879

1 p

Contents:
Cambridge MS draft
Testimonial for Alexander Scott in connection with Scott's application for post of Professor of Physics & Chemistry at the Nottingham College.

Alex Crum Brown  DEWAR/DCII/53  14 March 1881

2 pp

Contents:
Edinburgh University MS
Letter of recommendation for Alexander Scott

G.D.Liveing  DEWAR/DCII/54  4 May 1881

32/3 pp

Contents:
Cambridge MS
Testimonial for [Alexander] Scott in connection with Scott's candidature for Professorship of Chemistry at University College, Nottingham

J.F.Walker  DEWAR/DCII/55  [?1881]

11/3 pp

Contents:
Cambridge MS
Letter of recommendation for [Alexander] Scott in connection with Chair of Chemistry at Birmingham.

Lord Rayleigh to Alexander Scott  DEWAR/DCII/56  10 Dec 1884

2/3 p

Contents:
Cambridge printed
Thanks Scott for advice and assistance with chemical matters. Confident that Scott would discharge the duties of a Chemical Professorship with credit.

G.D.Liveing to the Rt Hon. the Earl of Leven & Melville  DEWAR/DCII/57  13 Dec 1884

1½ pp

Contents:
Cambridge MS
Testimonial for Alexander Scott in connection with Scott's candidature for Chair of Chemistry at the University of St Andrews.

H.E.Roscoe  DEWAR/DCII/58  Dec 1884

1 p

Contents:
Manchester MS
Letter of recommendation for Alexander Scott in connection with application for Professorship of Chemistry.
With printed copy, in which date has been changed to July 1885.
DEWAR/DCII/59.

W.Ramsay to [Alexander] Scott  DEWAR/DCII/60  23 July 1888

31/3 pp

Contents:
University College London MS
Scott might be right in saying that sons-in-law of Professors have early notice, but it may not stand Masson in very good stead. Comments on Masson's and Nicol's work. Comments on statement he could make in support of Scott. Comments on his scales and glass copies. Will send a description of the furnace.

G.D.Liveing to the Court of the University of Aberdeen  DEWAR/DCII/61  24 July 1888

2 pp

Contents:
Cambridge MS
Testimonial for Alexander Scott in connection with Scott's candidature for Professorship of Chemistry at Aberdeen.

M.M.Pattison Muir  DEWAR/DCII/62  1888

1 p

Contents:
Cambridge printed with MS amendments
Letter of recommendation for [Alexander] Scott in connection with Scott's candidature for Chair of Chemistry.
Printed letter dated, 15 Dec. 1884; MS amendments dated 28 July 1888.

Lothar Meyer to Alexander Scott  DEWAR/DCII/63  1 Aug 1888

2¼ pp

Contents:
Tubingen MS; German
Letter about Scott's work, in connection with Scott's application for Chair of Chemistry.

Alex Crum Brown  DEWAR/DCII/64  4 Aug 1888

1 p

Contents:
Edinburgh printed with MS amendments
Letter of recommendation for Scott. Printed letter dated 14 May 1881. MS additions refer to Scott's work on the composition of water by volume and on vapour densities at high temperatures.

C.Friedel to [Alexander Scott]  DEWAR/DCII/65  10 Aug 1888

2½ pp

Contents:
Talloires MS; French
Thanks Scott for letter. Has not yet received pamphlet; comments on this. Is sure Scott would be worthy of any position he takes up; comments on this. Asks for reprints.

M.Berthelot to Alexander Scott  DEWAR/DCII/66  10 Aug 1888

1 p

Contents:
Paris MS; French
Comments on Scott's work on vapour densities and on the composition of water. Very desirable that Scott should be able to use his scientific abilities in a bigger "theatre".

J.H.van't Hoff  DEWAR/DCII/67  16 Aug 1888

1 p

Contents:
Amsterdam MS
Letter of recommendation for Alexander Scott.

Henry E.Armstrong  DEWAR/DCII/68  16 Aug 1888

2 pp

Contents:
City & Guilds of London Institute MS
Letter of recommendation for [Alexander] Scott.

J.M.Crofts to [Alexander Scott]  DEWAR/DCII/69  17 Aug 1888

2 pp

Contents:
St Moritz MS
Acknowledges letter. Has not received article on vapour densities. Cannot speak with detail of Scott's work but will be pleased to send a general opinion to the University of Aberdeen if that would be of help. Refers to Scott's work with Dewar, which not only requires a thorough training in chemistry but also demands knowledge of methods of physical manipulation.

J.M.Marshall  DEWAR/DCII/70  21 Aug 1888

2 pp

Contents:
Durham School MS
Letter of recommendation for Scott in connection with Scott's application for a Chair of Chemistry.

C.Friedel to [Alexander Scott]  DEWAR/DCII/71  28 Aug 1888

2¾ pp

Contents:
Talloires MS; French
Letter of recommendation for Scott in connection with Chair at the University of Aberdeen.

W.Ostwald  DEWAR/DCII/72  Aug 1888

3 pp

Contents:
Leipzig MS; German
Letter of recommendation for Scott.

J.J.Thomson to [Alexander] Scott  DEWAR/DCII/73  20 March 1912

1 p

Contents:
Cambridge MS; postcard
Thanks Scott for congratulations [on O.M.?]. Pleased recent events have not impaired their friendship.

W.Ramsay to [Alexander] Scott  DEWAR/DCII/74  19 May 1912

2½ pp

Contents:
Regent's Park MS
Comments on Scott's Statement. "Dewar has a most inexplicable influence on others". Refers to Dewar's virtues. Quotes Ballantyne's opinion of Dewar. Scott must recover his preparations and his mercury. Robert Mond seems to have got tired of spending money on the Davy Faraday; comments on this. He has no evidence that he was appointed Professor at University College; comments on this and on Scott's similar position at the R.I. Losing of Scott's list is suspicious. Comments on loss of Hampson's air-liquefier. Is sure Scott will have the sympathy of "all right-minded men". Will be pleased to help in any way he can.

William A.Tilden to [Alexander] Scott  DEWAR/DCII/75  7 May 1912

2¼ pp

Contents:
Northwood MS
Has been reading Scott's Statement to members of the R.I. Thinks Scott will have the sympathy of the whole scientific world. Future generations will see it as a period when the Managers of the R.I. do not appear in the best light.

R.S.Morrell to [Alexander] Scott  DEWAR/DCII/76  9 Feb 1932

1 p

Contents:
Wolverhampton typescript
Is sorry he will not be able to come to Scott's lecture at Royal Society of Arts. Would like to see proof of the lecture. Thanks Scott for arranging for Plenderleith and others to attend his course. Comments on his lectures and on work on chemical changes in oil films.

R.S.Morrell to [Alexander] Scott  DEWAR/DCII/77  27 Feb 1932

1 p

Contents:
Wolverhampton typescript
Thanks Scott for copy of lecture. Successful in trial of chloramine T on a crayon drawing which had become spotted. Refers to Scott's proposal to use emulsion of benzene, alcohol and ammonia to remove stains. Impressed by way in which Scott deals with problems of restoration. Hopes Plenderleith will not find his talks too elementary. The real teaching is done in the demonstrations.

Charles Peers to [Alexander] Scott  DEWAR/DCII/78  9 Oct 1933

1½ pp

Contents:
Stadhampton, Oxford MS
New College terminated the arrangement with Grylls and Miss Townshend and Miss Howson have repaired the glass in the chapel windows; discusses this. Asks if Scott has some of the glass discarded by Grylls; this might be valuable for experiment.

Arthur Hill to Alexander Scott  DEWAR/DCII/79  31 Oct 1934

1 p

Contents:
Royal Botanic Gardens, Kew
Typescript
Thanks Scott for letter telling him of Professor Thompson's interest in vegetable dyes, particularly woad and weld. Difficult to get fresh samples of these dyes. Comments on the decline of woad production in Britain. Does not think weld is made any more in Britain but it might still be prepared on the continent; comments on this. The woad in their collection is old and discoloured and would be of little use for experimental purposes. Asks for Thompson's address so he can let him know if he hears of any likely sources of supply.

[Alexander Scott] to Edwin L.Lutyens  DEWAR/DCII/80  10 July 1935

11/3 pp

Contents:
Typescript
Cause of troubles with the fountain in Tom Quad and with Lord Lytton's swimming bath is the growth of vegetable (confervoid) organisms. Suggests remedies.

M.M.Pattison Muir to [Alexander] Scott  DEWAR/DCII/81  13 Dec 1890

2¼ pp

Contents:
Cambridge MS
Dewar and Ruhemann are "at daggers drawn". Ruhemann has complained of many things, especially of the commercial analyses Dewar has given him to do. Dewar is threatening to dismiss Ruhemann; comments on this. Asks if much commercial work was done in Dewar's laboratory in Scott's time. Thinks there will be a "splendid row", which many hope will result in Dewar's dismissal.

[James Dewar] to the Vice-Chancellor University of Cambridge  DEWAR/DCII/82  25 Dec 1891

4 pp

Contents:
Royal Institution
MS not Dewar's hand; draft
Is willing to agree to defer action about the Assistantship until the beginning of term, although he feels the matter will be aggravated unless Ruhemann decides to resign. Appreciates the courteous tone of the Vice-Chancellor's letter and regrets giving him such anxiety. Discusses the office of Assistant in the Chemical Department and Ruhemann's tenure of the post, commenting on the course of action Ruhemann has taken.

James Dewar  DEWAR/DCII/83  1891

58 pp

Contents:
Printed
Ruhemann case. Copies of correspondence concerning Dewar's disagreement with Ruhemann and his wish that Ruhemann should resign, or be dismissed, as Assistant in the Chemical Department; disagreement particularly concerns the issue whether the Jacksonian Professor may dismiss his assistant or whether such action must be taken by the Museums & Lecture Rooms Syndicate.

Experimental notes  DEWAR/Box DE1  1904-1922

[James Dewar]  DEWAR/DE1A/1  Nov-Dec 1910

10 pp

Contents:
MS
Notes on experiments on magnesium and hydrogen, not recorded in notebook; MgH2spectra.

[James Dewar]  DEWAR/DE1A/2  [ca. 1910]

4 pp

Contents:
Royal Institution MS
Notes on dielectric constants of liquid hydrogen.

[James Dewar]  DEWAR/DE1A/3 & 4  [1923]

2 photographs

Contents:
Soap films as detectors: stream lines.

[James Dewar]  DEWAR/DE1A/5 & 6  [1923]

2 photographs

Contents:
Soap films as detectors. Photographs of apparatus devised to obtain parallel films, for purpose of examining how far vortex stream on one film could be transmitted through certain gases and be reproduced on parallel films.

[W.J.Green]  DEWAR/DE1B/1  July-Oct 1904

90 pp

Contents:
MS
Notes on experiments on charcoal reactions.

[W.J.Green]  DEWAR/DEIB/2  Aug 1905-April 1906

78 pp

Contents:
MS
Charcoal absorption experiments.

[W.J.Green]  DEWAR/DE1B/3  [ca. 1906]

16 pp

Contents:
MS
Notes and graphs of readings of pressure from McCleod gauge.

[W.J.Green]  DEWAR/DE1B/4  Nov 1906

5 pp

Contents:
MS
Calibration of improved McCleod gauge.

[W.J.Green]  DEWAR/DE1B/5  1908

40 pp

Contents:
MS
Notes, calculations and curves relating to radium experiments on helium production, pressures of Crookes heating, relative time and occluded pressures in charcoal, pressures of liquid oxygen.

[W.J.Green]  DEWAR/DE1B/6  [ca. 1908]

6 pp

Contents:
MS
Radium experiments; ratio of volume of permanent gas & volume of emanation.

[W.J.Green]  DEWAR/DE1B/7  Nov 1909

14 pp

Contents:
MS
Experiments with arc; notes on electrical impulses produced by action of light on sensitive cells containing various liquids and solutions.

[W.J.Green]  DEWAR/DE1B/8  July 1910

16 pp

Contents:
MS
Notes on work with vacuum tubes; solidification of oxygen.

[W.J.Green]  DEWAR/DE1B/9  Oct 1910

16 pp

Contents:
MS
Notes: coefficient of expansion of hydrogen liquid.

[W.J.Green & James Dewar]  DEWAR/DE1B/10  Dec 1919-Jan 1920

26 pp

Contents:
MS
Notes, diagrams and calculations concerning experiments with thermopile.

[W.J.Green]  DEWAR/DE1B/11  1922

34 pp

Contents:
MS
Curves, notes and diagrams concerning velocity of gas currentd from glass and platinum jets.

James Dewar  DEWAR/DEIC/1  1917

4 pp

Contents:
London typescript & MS
List of experiments made by Dewar in connection with vacuum vessels, relating to case brought in the High Court of Justice, Chancery Division, before Mr Justice Sargant, in the matter of Letters Patent granted to Dewar, 1904, and in the matter of the Patents & Designs Act 1907.

[W.J.Green]  DEWAR/DEIC/2  [1918]

1½ pp

Contents:
Royal Institution MS
Notes on proposal to take sample of vacuum flasks for examination at the Royal Institution.

[W.J.Green]  DEWAR/DEIC/3  25 April 1918

12/3 pp

Contents:
Royal Institution MS
Notes on demonstration of vacuum flasks (liquid air) to Wear's Committee and Army Council at the War Office.

[W.J.Green]  DEWAR/DEIC/4  21 Feb 1919

1 p

Contents:
Royal Institution MS
Note on most efficient capacity for vessel to contain given bulk of liquid air.

[W.J.Green]  DEWAR/DEIC/5  [1918/19]

1 p

Contents:
MS
Graph concerning liquid air evaporation from vacuum vessels.

[W.J.Green]  DEWAR/DEIC/6-11  Aug-Sept 1918

6 items

Contents:
MS
Labels for exhausted copper and brass vacuum vessels, noting results of tests.

[W.J.Green]  DEWAR/DEIC/12  8 June 1918

1½ pp

Contents:
MS
Notes on exhaustion of 251 metal vessel.

[W.J.Green]  DEWAR/DEIC/13  [1918/19]

½ p

Contents:
MS
Note that details of delivery of oxygen gas has been submitted to the War Office Medical Supplies Committee.

[W.J.Green]  DEWAR/DEIC/14  [1918/19]

½ p

Contents:
MS
Note of weights of vacuum flasks.

Experimental notes  DEWAR/Box DE2  1919-23

Contents:
Contains earlier material

[James Dewar & W.J.Green]  DEWAR/DE2A  1919-20

Contents:
MS File A: 1-44
Low temperature studies: experiments with thin membranes.
1. Quartz experiments; double and single diaphragms; relative absorptions and transmissions of various screens; charcoal thermoscope - cell surrounded by silvered glass vacuum vessel containing black paper lining; charcoal thermoscope - cell contained in German silver tube immersed in liquid air; comparison of silvered and unsilvered vacuum vessels. March-April 1919; 34pp. MS; DEWAR/DE2A/1.
2. Charcoal thermostat - membrane A: notes of experiments using German silver tube; with diagrams showing absorption of nitrogen in liquid nitrogen, and life of membrane and sensibility at 13° and 100°. May-July 1919; 44pp, MS; DEWAR/DE2A/2.
3. Charcoal thermostat - membrane B: notes and curve of relation of depth of air over membrane and effect at room temperature and 100°.May 1919; 6pp, MS; DEWAR/DE2A/3.
4. Charcoal thermostat fitted with trap door - membrane C. Experimental notes, including experiments without trap door and experiments on transfer cell etc. to spherical vessel; with radiation curve. June 1919; 10pp, MS; DEWAR/DE2A/4.
5. Charcoal thermostat - membrane D. Experiments with cell with 2cm apeture, also with apparatus whereby inner vessel projects above outer vessel; external cooling. June 1919. 10pp, MS; DEWAR/DE2A/5.
6. Membrane E. Experiments with average height of liquid, 5cms: external cooling. June-July 1919; 30pp, MS; DEWAR/DE2A/6.
7. Membrane F. Use of fine CN charcoal previously heated and then cooled in oxygen; bright Cu disc immediately below chiffon; vertical H2SO4 manometer; vessel cooled externally. Includes experiments in which inner vessel projects above outer vessel, use of spherical and cylindrical vessels. July 1919; 22pp, MS; DEWAR/DE2A/7.
8. Membrane G: bright polished brass plate immediately below chiffon; same charcoal reheated and cooled in oxygen; vessel cooled externally. Includes experiment in which cell kept cooled overnight. July-August 1919; 22pp, MS; DEWAR/DE2A/8.
9. Membrane H: vessel cooled externally. Includes notes on examination of inside of vessel with Tyndall cone and on modifications to copper hood; brief note on effect of copper disc removal on clarity of the atmosphere. Sept., 1919; 20pp, MS; DEWAR/DE2A/9.
10. Membrane I: experiments include use of varying depths of liquid air and liquid oxygen, use of copper disc stopper, lowering of temperature by capillary hydrogen current, vessels stood over CaC12 overnight. With curves - variation in depth of liquid nitrogen and of air. Sept-Oct. 1919; 44pp, MS; DEWAR/DE2A/10.
11. Membrane J: chiefly experiments in which cell stood over CaC12; note on experiment in which silver chloride plates superposed on each other and transparency to light decreased Oct. 1919; 12pp, MS; DEWAR/DE2A/11.
12. Membrane K: experiments in which cell stood over CaC12 overnight; use of cell with AgC1 window; experiments in which rock salt luted on to ebonite cell, mahogany cell, and to stretched and unstretched membranes. Includes transmission curve - variation of thickness of mica with transparency. Oct-Nov. 1919; 26pp, MS; DEWAR/DE2A/12.
13. Membrane L: includes experiments on helium and hydrogen saturation and on transparency of screens at different temperatures. Dec. 1919; 24pp, MS; DEWAR/DE2A/13
14. Membrane M; notes of experimental results, including use of alcohol manometer and cooling of membrane overnight. Dec. 1919-Jan. 1920p; 8pp, MS; DEWAR/DE2A/14.
15. Experiments using AgC1 plate on cell instead of rubber membrane; includes experiments using lead disc as shutter instead of trap door. Nov. 1919; 18pp, MS; DEWAR/DE2A/15.
16. Experiments using rock salt window on cell instead of rubber membrane; Pb disc used as shutter in all experiments instead of trap door. Nov. 1919; 6pp, MS; DEWAR/DE2A/15A.
17. Reflections, dispersions and transmissions: notes on H O film between AgCl plates; screens, discs and membranes; inversions - note of transmissions for various substances, e.g. glass on phosphorus/phosphorus on glass. [1919/20] 8pp, MS; DEWAR/DE2A/16.
18. Curves showing time of reversion; external cooling of AgCl cell and of rubber membrane cell with liquid air; dynamic flow of manometer; notes on hydrogen thermometer - cell with tin plate instead of rubber membrane. Dec. 1919. 12pp, MS; DEWAR/DE2A/17.
19. Time and displacement curves; free radiation. Rubber membrane cell and external cooling; use of vertical or horizontal manometer. Dec. 1919; 18pp, MS; DEWAR/DE2A/1/18.
20. Relative elasticity of rubber membrane under pressure at 11°C and liquid air: curves and notes. Dec. 1919; 8pp, MS; DEWAR/DE2A/19.
21. Notes of transmissive powers of various substances, corrected for reflections. [ca. Dec 1919]; 2pp, MS; DEWAR/DE2A/20.
22. Notes on reflection factors and on films. [ca. Dec 1919]; 1½pp, MS; DEWAR/DE2A/2.
23. Notes: relative dp/dT of both air and hydrogen in charcoal to liquid oxygen. [1919/20]; ½ p, MS; DEWAR/DE2A/22.
24. Lists of transmission values. [1919/20]; 16pp, MS; DEWAR/DE2A/23.
25. List of extinction coefficients for various substances. [1919/20]; 1p, MS; DEWAR/DE2A/24.
26. Notes and curves relating to radiation, including curve for red hot platinum wire radiation (Tyndall), Fresnel's reflection correction for normally incident light, curve of temperature of perfect radiator, curve of reflection at plane surface (Fresnel), curve of heat spectrum at three different temperatures. 1920; 24pp, MS; DEWAR/DE2A/25.
27. Notes and curves: charcoal thermoscope, corrected values of "D" and observed "T" for superposition of various plates. [ca. 1920]; 6pp, MS; DEWAR/DE2A/26.
28. Latent heat. Figure showing charcoal saturated with helium. [1920]; 1p, MS; DEWAR/DE2A/27.
29. Latent heat. Figure showing charcoal saturated with hydrogen. [1920]; 1 p, MS; DEWAR/DE2A/28.
30. Air saturation: curve showing response of thermoscope to additions of pressure of alcohol manometer, with corresponding increments of temperature of liquid oxygen. [1920]; 1p, MS; DEWAR/DE2A/29.
31. Curve of unscreened radiation and radiation through mica screens - use of horizontal measuring tube. [1920] 1p, MS; DEWAR/DE2A/30.
32. Radiation curves; horizontal scaled tubes - H2SO4 tube and alcohol tube. [1920]; 1p, MS; DEWAR/DE2A/31.
33. Radiation curves, vertical manometer, 15°C radiation: H2SO4 manometer, alcohol, and gas cooled cell - H2SO4 manometer. [1920]; 1p, MS; DEWAR/DE2A/32.
34. Curves comparing sensibilities of cell when charcoal is saturated at liquid air temperature with air, hydrogen and helium respectively. [1920]; 1p. MS; DEWAR/DE2A/33.
35. Curves: radiation at 100°C, vertical manometer. Curves for H2SO4 manometer, alcohol and gas cooled cell - H2SO4 manometer. [1920]; 1p, MS, DEWAR/DE2A/34.
36. Notes. Charcoal thermoscope: gas evolution by absorption at 90°A of radiation from black body at 300°A. [1920]; 2pp; MS; DEWAR/DE2A/35.
37. Notes, chiefly references to literature, concerning radiation and transmissive power. 1920; 5pp, MS; DEWAR/DE2A/36.
38. Notes on radiation: black body interchange; gas evolution theory; reduction of reflecting power by thin film of alcohol. [1920]; 1¾pp, MS; DEWAR/DE2A/37.
39. Notes: black radiation interchange down a reflecting cylinder. April 1920; 1p, MS; DEWAR/DE2A/38.
40. Notes: radiation through liquid air. 1919; 26pp, MS; DEWAR/DE2A/39.
41. Curves: rate of cooling of interior of unsilvered vacuum vessel; note added [by Dewar] of other experiments to be done. undated; 4pp, MS; DEWAR/DE2A/40.
42. Notes on external cooling of vessels; undated. 1p, MS; DEWAR/DE2A/41.
43. Curves: increase of pressure of gases in charcoal caused by increasing temperature. undated. 2pp, MS; DEWAR/DE2A/42.
44. Notes on radiation. 1919; 8pp, MS; DEWAR/DE2A/43
45. Cloudland studies. Radiation curves, notes, drawings of apparatus. [1921]; 20pp, MS; DEWAR/DE2A/44.

[James Dewar & W.J.Green]  DEWAR/DE2B  1920-21

80 items

Contents:
MS File DE2B, 1-80
Notes on measurement of radiation from the sky.
1. Notes on cell and on membranes used; vessel cooled externally. 19-27 Jan. 1920; 2pp, MS; DEWAR/DE2B/1.
2. Notes and curves: observations on gas cooled cell. 28-30 Jan. 1920; 2pp, MS; DEWAR/DE2B/2.
3. Sky radiation: notes on apparatus and on wind disturbance. 7-9 Feb. 1920; 1½pp, MS; DEWAR/DE2B/3.
4. Charcoal thermoscope: variation of zero alteration with height of instrument; empty cell - fluctuations due to membrane flexibility. 9 Feb. 1920; 1p, MS; DEWAR/DE2B/4.
5. Charcoal thermoscope, sky radiation: comparative values obtained from exposure to open sky and to black cube at open air temperature. 7-9 Feb. 1920; ¾p, MS; DEWAR/DE2B/5.
6. Imitation of wind over thermoscope vessel; observations on roof in 10-15 mph wind; modifications to apparatus. 10 Feb. 1920; 21/3pp, MS; DEWAR/DE2B/6.
7. Sky radiation: comparison with black cube. 13-16 Feb. 1920; 2pp, MS; DEWAR/DE2B/7.
8. Observations using simple thermoscope with liquid air stopper instead of trap door. 20-21 Feb 1920; 1p, MS; DEWAR/DE2B/8.
9. Thermoscope in 2½ litre window silvered vacuum flask: drawings of apparatus, with description, and notes of sky radiation observations; notes on arc lamp radiation. 1-5 March 1920; 3½pp, MS; DEWAR/DE2B/9.
10. Comparison of readings of thermoscope with and without black paper lining and with Sn foil lining. March 1920; 2/3p, MS; DEWAR/DE2B/10.
11. Hilger cell thermoscope in 2½ litre flask, copper inner vessel; sky radiation observations and arc lamp radiation. Observations with modified apparatus. 6-20 March 1920; 5pp, MS; DEWAR/DE2B/11.
12. Flask thermoscope readings - sky radiation. 8-25 March 1920; 1¾pp, MS; DEWAR/DE2B/12.
13. Sky radiations, flask vacuum vessel thermoscope with horizontal alcohol manometer added. Notes, 13-17 March 1920; 1p, MS; DEWAR/DE2B/13.
14. Charcoal thermoscope; 2½ litre flask and internal tube: comparison of different reflecting tubes: 22-25 March 1920; 2pp, MS; DEWAR/DE2B/14.
15. Charcoal thermoscope: shortened black paper cylinder; brass cylinder. Notes on apparatus; radiation observations. 25-30 March 1920; 3pp, MS; DEWAR/DE2B/15.
16. Sky radiation observations and note on reflecting cylinder. 31 March-6 April 1920; 5pp, MS; DEWAR/DE2B/16.
17. Observations with 2½ litre flask thermoscope, brass cylinder with lead bottom, brass cone apeture on. 7-8 April 1920; 1¼ pp, MS; DEWAR/DE2B/17.
18. Observations with flask thermoscope, closed brass cylinder blackened inside. 8-9 April 1920; 1p, MS; DEWAR/DE2B/18.
19. Observations with thermoscope in 2½ litre flask; short brass cylinder black inside, soldered-in lead bottom. 10-13 April 1920; 1¾pp, MS; DEWAR/DE2B/19.
20. Laboratory tests of thermoscope; evening and night sky observations. 13-14 April 1920; 2pp, MS; DEWAR/DE2B/20.
21. Observations with flask thermoscope; notes on reflecting powers of metals. 15-21 April 1920; 21/3pp, MS; DEWAR/DE2B/21.
22. Flask thermoscope, neck radiation with reflecting interior. 22-23 April 1920; 1p, MS; DEWAR/DE2B/22.
23. Sky measures with thermoscope on roof of R.I. Physics Laboratory. 24-26 April 1920; 1p, MS; DEWAR/DE2B/23.
24. Sky measures; emissivity effect of warmer polished metal in and on neck. 26-28 April 1920; 2pp, MS; DEWAR/DE2B/24.
25. Sky and moon (eclipse) observations at Mill Hill. 1-2 May, 1920; 3pp, MS; DEWAR/DE2B/25.
26. Night sky and moon observations, Mill Hill. 3-5 May 1920; 3pp, MS; DEWAR/DE2B/26.
27. Sky measures. Notes on possible addition of copper burnished dome and disc to flask neck. Notes on variable and discordant "black" readings. 9-10 May 1920; 1½pp, MS; DEWAR/DE2B/27.
28. Sky readings. Thermoscope with Al neck lining and Al baffle diaphragm in neck; comparison of zenith/black ratios with each. 10-14 May 1920; 1¾pp, MS; DEWAR/DE2B/28.
29. Sky readings, Mill Hill; internally (surface) silvered thermoscope flask. 15-17 May 1920; 2pp, MS; DEWAR/DE2B/29.
30. Flask thermoscope - reflecting Al lining in neck, use of Al baffle diaphragms. Calibration of thermoscope. Sky readings at Mill Hill. 17-19 May 1920; 10pp, MS; DEWAR/DE2B/30.
31. Notes on modifications to thermoscope - addition of polished copper dome; aluminium drum in flask neck. 26-29 May 1920. 3pp, MS; DEWAR/DE2B/31.
32. Low readings of night sky; thermoscope on Physics Laboratory roof. 7-13 June 1920; 4pp, MS; DEWAR/DE2B/32.
33. Night sky observations. 14-19 June 1920; 4pp, MS; DEWAR/DE2B/33.
34. Sky readings; modifications to and overhaul of apparatus. 21-29 June 1920; 4pp, MS; DEWAR/DE2B/34.
35. Sky readings, 29 June-9 July 1920; 3pp, MS; DEWAR/DE2B/35.
36. Sky readings: Physics Laboratory; sliding window thermoscope 1-14 July 1920; 3½pp, MS; DEWAR/DE2B/36.
37. Sky readings from roof of Physics Laboratory; cool and warm walls; drawing of apparatus - trap door opened and shut by wire over grooved wheel, instead of opened by chain and closed by gravity. 14-16 July 1920; 2pp, MS; DEWAR/DE2B/37.
38. Sky readings; modifications to apparatus. 19-20 July 1920; 1½pp, MS; DEWAR/DE2B/38.
39. Readings: black variation with altering depth of liquid oxygen. 8 July - 4 August. Includes note by Dewar on blacking of aluminium drum. 1¾pp, MS; DEWAR/DE2B/39.
40. NaCl cell tests. 28-30 July; 2pp, MS; DEWAR/DE2B/40.
41. NaCl cell tests. 30-31 July 1920; 2pp MS; DEWAR/DE2B/41
42. Sky radiation readings; thermoscope on Physics Lab. roof. 31 July-14 August 1920; 5pp, MS; DEWAR/DE2B/42.
43. Rough jottings of readings, 17 August; 1p, MS; DEWAR/DE2B/43.
44. Sky readings; use of copper neck drum; 9-10 August. 1p, MS; DEWAR/DE2B/44.
45. Sky readings; thermoscope in lantern roof window platform, inner Physics Lab.; June-July 1920; 2pp, MS; DEWAR/DE2B/45.
46. 2½ litre flask thermoscope; resume of radiation work to 21 April 1920; 4pp, MS; DEWAR/DE2B/46.
47. Estimation of neck correction with Al drum (liquid air basin polished Al disc); negative effects. June 1920 3¼pp, MS; DEWAR/DE2B/47.
48. Resume of neck errors; April-Aug 1920; 1p, MS; DEWAR/DE2B/48.
49. Readings: Hilger cell, separable coned ground ring on cell; 6 Feb 1921; 1p, MS; DEWAR/DE2B/49.
50. Forms of 2 litre flask thermoscope: development and modifications, March to August 1920. 7pp, typescript & MS; DEWAR/DE2B/50.
51. Curve: thermoscope exposed and equilibrated to B @ 10° C; exposed to open sky. 21 March 1920. 1p, MS; DEWAR/DE2b/51.
52. Dewar to Green, 24 Nov. 1920: discusses unsatisfactory trap door in apparatus; with readings. 2pp, MS; DEWAR/DE2b/51.
53. Set of curves at 5° intervals of earth temperature from O° C to 20° C from which theoretical black body temperature of the observed radiation is obtained. 24 Nov 1920; 1p, MS. DEWAR/DE2B/53.
54. Note of clear sky measures, 10-19 May 1920; ½ 2p, MS. DEWAR/DE2B/54.
55. Note of sky readings from R.I. and from Mill Hill, March-May 1920; 1p, MS. DEWAR/DE2B/55.
56. Notes on maintenance of platform thermoscope and manometer. 13 May 1921. 1p, MS;
57. Sky radiation, day measures, March-May 1921; 1p, MS; DEWAR/DE2B/57
58. Sky measures: rough notes; Nov. 1920; Jan-Aug. 1921; 68pp, MS; DEWAR/DE2B/58.
59. Notes on vapour pressure values at Kew and St James's Park, 7 March to 10 June 1921; 1p, MS; DEWAR/DE2B/59.
60. Cloudland Studies. Typescript of paper, January 1921; 25pp. DEWAR/DE2B/60.
61. Sky radiation tables, with annotations referring to 1921 abstract, 1920-21; 7pp, MS. With note by [W.J.Green] that typed copy was sent to J.H.D., 27 April 1925, and that H.M. [Ross's] queries were answered on 30 July 1925. DEWAR/DE2B/61
62. Draft of letter from [Green] to Ross, 30 July 1925 saying he has answered Ross's queries about the sky radiation tables with annotations in the margin. Comments on water vapour tension observations; 1p, MS; DEWAR/DE2B/62.
63. Envelope of notes on sky radiation readings, August-Sept 1920. 11pp + notes on envelope, MS; DEWAR/DE2B/63.
64. Radiation observations, with notes by Dewar on results; May 1920; 4pp, MS. DEWAR/DE2B/64.
65. Rough jottings of sky readings; note added that the records were found in a drawer. 2pp, MS; DEWAR/DE2B/65.
66. Sky readings, 27 March 1920; ½p, MS; DEWAR/DE2B/66.
67-72. Sky readings; rough notes, 17 April to 29 May. 12pp, MS. DEWAR/DE2B/67-72.
73. Rough notes and calculations: sky readings; undated. 2pp, MS; DEWAR/DE2B/73.
74. Sky readings, May 1920 including notes on apparatus; 2pp, MS; DEWAR/DE2B/74.
75-80. Rough notes on sky readings and on apparatus, Nov. 1920; 18pp, MS. DEWAR/DE2B/75-80.

[W.J.Green]  DEWAR/DE2C/1  1915-16

26 pp

Contents:
MS
Notes of work on collodion films: thickness of films; microscopic examinations; gas transfer through films; bursting pressure.

[W.J.Green]  DEWAR/DE2D/1-5  1921-3

5 notebooks

Contents:
MS
Notes of work on films.
1. Sound-sensitive jets; analysis of photographs of film vortices by arc and spark; absorption bands in spectra of reflected light. 8 Dec. 1921-4 March 1922.
2. Black development - critical and normal; effect of jets on same. 8 March to 19 April 1922.
3. Permanence and variation in wholly black films; deep black vortices on grey misty films. 20 April to 20 May 1922.
4. Black convectiom; long-running vortices, several days unchanged; ratio of illumination of various blacks and silvers; pressure and velocity of jets; open-air sensitive films; magnetic displacements of stream of O, He, H etc. 23 May to 18 Sept. 1922.
5. Horizontal films; composite jets; multiple films. Jan.-March 1923.

Royal Institution [?] to [?W.J.Green]  DEWAR/DE2D/6  22 Sept 1922

3 pp

Contents:
R.I. MS
Is enclosing bubble measurements. Black boundary is keeping horizontal. Coloured part is deep amber and getting stirred up by the warmer weather. Comments on capillary tube prepared for measurement of surface tension. Gives details of results of surface tension measurements and of bubble measurements.

W.J.Green to [James Dewar]  DEWAR/DE2D/7  23 Sept 1922

3 pp

Contents:
Royal Institution MS
The Zn and Cd alloy drops pass as well as clean Hg through a coloured film of 5 in 50 ammonia soap; discusses this. Gives relative values for surface tensions of Plateau and 5 in 50 ammonia soap and comments on this. Refers to film-vortex cubes and to condition of hanging black film. Is enclosing bubble measures. Graph of the ovoid B turned out fair.

James Dewar  DEWAR/DE2E/1  [ca 1900-1922]

7 pp

Contents:
MS
Series of curves including: J.D.'s second thermometer calibration; specific heats of graphite, ice and diamond; charcoal absorption in CO2 under pressure; cooling of hydrogen and air mixtures, hydrogen and CO2 mixtures and CO2 and air mixtures; spark gap.

W.J.Green  DEWAR/DE2E/2  June 1915

8 pp

Contents:
MS
Resumé of principal investigations, Davy Faraday Laboratory, 7-24 June 1915. Includes: absorption of chlorine; spectrographic examination of cordite burning - visual and photographic; platinum diffusion at red heat.

W.J.Green  DEWAR/DE2E/3  June 1915

16 pp

Contents:
Royal Institution MS
Notes on work on the absorption of chlorine, including absorption by charcoal and hypo-soda cotton.

James Dewar  DEWAR/DE2E/4  1916

4 pp

Contents:
Typescript & MS
Notes for Discourse, Advantages of exhaustion. Includes notes on ore concentration by means of oils and on the possibility of making artificial silk.

W.J.Green to [James Dewar]  DEWAR/DE2E/5  2 Oct 1917

2 pp

Contents:
Royal Institution MS
Has tried some rough shots with the Pb coil but has not solved problem of getting it through the neck of a B.P. flask, so has tried in a round bottomed porcelain beaker. Discusses this, commenting on use of flat coil and on cylindrical spiral. Gives details of new tube in which he has constructed coil with an additional spiral; this promises to be much better.

[W.J.Green]  DEWAR/DE2E/6  [ca 2/3 Oct 1917]

2 pp

Contents:
Royal Institution MS
Notes and diagrams on limit of liquid delivery in titled vacuum vessel and on possibility of using a gimbal support. Notes on vacuum stopper and vitiation of vacuum effect when second tube through stopper is necessary for connecting atmosphere above liquid.

W.J.Green to [James Dewar]  DEWAR/DE2E/7  3 Oct 1917

2 pp

Contents:
Royal Institution MS
Gives details of loaded lead coil and comments on movement of the coils. Serious defect is distortion of the tube at the support. Chain supports must be developed to try to avoid the rigid hold. Simpler coil, swinging in gimbals with short chains instead of pivots, might be workable. Refers to promising further trials of single coil of 10 feet of pipe, expanding conically from weight to gimbal ring and contracting symmetrically up to fixed point in neck.

[W.J.Green] to [James Dewar]  DEWAR/DE2E/8  4 Oct 1917

2 pp

Contents:
Royal Institution MS
The Pb coil gimbal combination gives complete freedom round to 90° each way; comments on this. Gives details of the apparatus. Was not able to get enough liquid air to test the arrangement immersed in cylindrical vessel. Need to replace copper cooling coil on CO2 pump; comments on this.

[W.J.Green] to [James Dewar]  DEWAR/DE2E/9  5 Oct 1917

2 pp

Contents:
Royal Institution MS
The Pb coil without gimbals, with 200gm load, was fixed up for test of flexibility in liquid air; discusses the apparatus and experiment. The arrangement is practically rigid at liquid air temperature and a far more flexible coiling will be needed. Will test the gimbal arrangement. Gives details of the second preparation of Al2O3 charcoal and details of absorption experiments.

[W.J.Green]  DEWAR/DE2E/10  3 May 1919

1 p

Contents:
MS
Notes on radiation pressures in lgm charcoal, in glass bulb, containing, at liquid aid temperature, small volumes of air, hydrogen and chemical nitrogen.

[James Dewar] to W.J. Green  DEWAR/DE2E/11  7 Oct [1920]

1 p

Contents:
MS: incomplete
Notes on experiment on spark which he wants Green to do with the old De La Rue tube.
Verso [Green]: drawing of apparatus and note of results.

[James Dewar] to W.J. Green  DEWAR/DE2E/12  9 Oct 1920

1 p

Contents:
MS
Discusses experiment on radiation from a luminous gas flame and from the bunsen. Asks Green to put new charcoal tube on the calorimeter for CS2 experiments.

[James Dewar] to W.J. Green  DEWAR/DE2E/13  11 Oct 1920

¾ p

Contents:
MS
No use attempting further repetition of the CS2 experiment. For renewed use of liquid oxygen need proper vessels; comments on this Comments on new water tube to be prepared.

James Dewar to [W.J.] Green  DEWAR/DE2E/14  16 Oct 1920

1½ pp

Contents:
Royal Institution MS
Notes results of tube experiments, giving details of spark gap and pressure of ice vapour at various temperatures. Discusses the experiments. Compressor will be run tomorrow; hopes they will get some liquid air which will be of use. Before Sir Charles Parsons arrives, wants to know how Parsons' and Kemp's orders, given to engineers, work; comments on this.

[James Dewar] to W.J.Green  DEWAR/DE2E/15  18 Oct 1920

1 p

Contents:
MS
On examining old water tube, the great leak of air which has taken place is shown by the N2 spectrum. On localised cooling with liquid air finds no change of spark gap. Comments on this and discusses the tube.

[W.J.Green]  DEWAR/DE2E/16  March-April 1922

19 pp

Contents:
MS
Notebook, mostly unused, containing notes on calorimetry experiments; chiefly using small liquid oxygen calorimeter with metal diaphragm stoppers.

[James Dewar]  DEWAR/DE2E/17  undated

1½ pp

Contents:
MS
Notes on literature (calorimetry): refers to paper by Cailletet and others in Comptes Rendus, 1900.

[James Dewar]  DEWAR/DE2E/18  undated

¼ p

Contents:
MS
Note of work on bubbles: collection and composition of drops.

[W.J.Green]  DEWAR/DE2E/19  undated

1 p

Contents:
MS
Note referring to liquid hydrogen experiments contained in small black notebook.

[James Dewar]  DEWAR/DE2E/20  undated

1/3 p

Contents:
MS
Note of percentages of gas and liquid oxygen and of boiling points [?at different pressures].

[James Dewar]  DEWAR/DE2E/21  undated

3¼ pp

Contents:
Rough curve, notes and calculations; note of examination results for Pedder.

[James Dewar]  DEWAR/DE2E/22  undated

1½ pp

Contents:
MS
Curve: tension of hydrogen in charcoal; with rough calculations.

[James Dewar]  DEWAR/DE2E/23  undated

1½ pp

Contents:
MS
Note on composition of the earth. Verso another hand: list of those who signed proposal form for Sir Ernest Cassel and note that Arthur Walter was elected Manager [of R.I.] in 1918.

[James Dewar]  DEWAR/DE2E/24  undated

1¼ pp

Contents:
MS
Notes on literature concerning soap films, 1911-14. With quotation [from Keats' "Ode to a Nightingale"].

[James Dewar]  DEWAR/DE2E/25  undated

2/3 p

Contents:
MS
Note of experiments on films.

[James Dewar]  DEWAR/DE2E/26  undated

12/3 pp

Contents:
MS
Notes on velocity of flash and films.

[James Dewar]  DEWAR/DE2E/27  undated

1 p

Contents:
MS
Drawings of liquid hydrogen calorimeter.

[James Dewar]  DEWAR/DE2F/1-2  [1914]

2 pp

Contents:
MS
Figures for paper, The coming of age of the vacuum flask: apparatus for computation of latent heat of liquefaction of hydrogen; apparatus for preparation of gas samples.

[James Dewar]  DEWAR/DE2F/3-4  [1915]

2 pp

Contents:
MS
Figures for papers, Problems of hydrogen and the rare gases: apparatus for measurement of gases uncondensed at boiling point of hydrogen; curve showing growth of pressures in platinum tube heated by Meker gas burner.

[James Dewar]  DEWAR/DE2F/5-8  [1919]

4 pp

Contents:
MS
Figures for paper, Liquid oxygen in warfare: curve - concentration of liquid air, relative composition of liquid and vapour as boiling point rises; curve - oxygen proportion in liquid air related to its boiling temperature; curve - oxygen proportion and density of evaporated liquid air related to boiling point; curve - weight loss of liquid air measured directly by evaporation rate, variation with boiling point.

[James Dewar]  DEWAR/DE2F/9-18  [1920]

10 pp

Contents:
MS
Curves for paper, Low temperature studies: 15C radiation - vertical manometer; 1000 radiation - vertical manometer; horizontal scaled tubes (H SO and alcohol), 100C and 15C radiation; horizontal tube- screened radiation; air saturation; charcoal saturated with hydrogen and with helium; cell without charcoal; comparison of sensibilities of cell when charcoal saturated at liquid air temperature with air, hydrogen and helium respectively; proportional radiation into liquid oxygen sink; transmission by normally absorptive substances when reduced in thickness.

[James Dewar]  DEWAR/DE2F/19-21  [1921]

3 pp

Contents:
MS
Figures for paper, Cloudland studies: apparatus; apparatus for showing slow surging movements and cirrus-like formations; curve of observations during partial eclipse and for day after.

[?W.J.Green]  DEWAR/DE2G/1  1878

Contents:
Notebook, MS
Small red-brown notebook, 6½" x 4", containing notes on sound experiments carried out at Kew Gardens, Heathfield Park and Wimbledon Common.

Laboratory notes, ca.  DEWAR/Box DE3  1897-1930

[James Dewar]  DEWAR/DE3/1  December 1897

1 p

Contents:
MS [hand unknown]
Notes of results of colling film in liquid air.

[James Dewar]  DEWAR/DE3/2-5  ca June 1905

5 pp

Contents:
MS
Notes by Dewar and another [hand unknown] on rate of evaporation of air from silvered vacuum flask and comparison of copper and unsilvered glass flasks.

W.J.Green  DEWAR/DE3/6  24 Feb 1908

3 pp

Contents:
Davy Faraday Laboratory MS
Notes on experiments concerning rates of diffusion of gases through thin india-rubber films.

[W.J.Green]  DEWAR/DE3/7  [ca 1909]

1 p

Contents:
MS
Curve: radium emanation, Rutherford's observations.

[W.J.Green]  DEWAR/DE3/8  3 Nov 1911

1 p

Contents:
MS
Curve: calibration of mercury hydrogen thermometer.

[James Dewar & W.J.Green]  DEWAR/DE3/9  24 Jan 1912

4 pp

Contents:
MS
Notes on work on specific heat of liquid nitrogen by charcoal exhaustion.

[James Dewar & W.J.Green]  DEWAR/DE3/10  25 Jan 1912

2 pp

Contents:
MS
Notes and calculations concerning specific heat of liquid nitrogen

[W.J.Green]  DEWAR/DE3/11  [6 May 1912]

1 p

Contents:
MS
Curve showing specific heats: materials dropped into enclosed tube in the liquid instead of direct into liquid (splash avoided).

[W.J.Green]  DEWAR/DE3/12  April 1912

1 p

Contents:
MS
Specific heat of nitrogen. Curve showing relation between S and A in expression wx=aW-by/(f=e-s/5), where a=sf/1 -f

[W.J.Green]  DEWAR/DE3/13  1 May 1912

1 p

Contents:
MS
Curve: variation of apparent specific heat of nitrogen with varying quantities of total nitrogen in small slit silvered calorimeter.
With notes concerning ratio of glass to nitrogen and theoretical variation of apparent S of nitrogen in calorimeter.
4pp, MS; DEWAR/DE3/14.

[W.J.Green]  DEWAR/DE3/15  3 May 1912

1 p

Contents:
MS
Curve: specific heat of nitrogen; large calorimeter unsilvered.

[W.J.Green]  DEWAR/DE3/16  3 May 1912

1 p

Contents:
MS
Specific heat of nitrogen. Curves: a) variation of apparent specific heat of nitrogen with different quantities of nitrogen, first large calorimeter; b) variation of apparent specific heat of nitrogen with different quantities of nitrogen, second large calorimeter.

[W.J.Green]  DEWAR/DE3/17  [May 1912]

1 p

Contents:
MS
Curve: theoretical variation of apparent S with mass of nitrogen used; small calorimeter.

[W.J.Green]  DEWAR/DE3/18  [May 1912]

1 p

Contents:
MS
Curve: variation of apparent S of nitrogen in calorimeter with ratio of mass of glass of empty space.

[W.J.Green]  DEWAR/DE3/19  [May 1912]

1 p

Contents:
MS
Specific heat of nitrogen. Curve: nitrogen + ½ atom Hg.

[W.J.Green]  DEWAR/DE3/20  31 July 1912

7 pp

Contents:
MS
Notes on nitrogen calorimetry at reduced pressures. Includes curve - volume calibration of small sealed neck calorimeter.

[W.J.Green]  DEWAR/DE3/21-22  [ca. 1915]

2 pp

Contents:
MS
Vacuum vessel calorimeter. Curve of results with nitrogen alone and with nitrogen and lead (1 atom) and table of results, including corrected values. Work done prior to 11 August 1915.

A.Harden to James [Dewar]  DEWAR/DE3/23  22 Nov 1912

1½ pp

Contents:
Lister Institute of Preventive Medicine, London MS
No definite information is available on the molecular weight of serum albumin. Opinions differ greatly; comments on this.
Comments on formula suggested by Hofmeister in 1899.
Rough calculations added by Dewar.

[James Dewar]  DEWAR/DE3/24  [ca 1918]

4 pp

Contents:
Royal Institution MS
Notes on rate of fall of black film (oleate of soda, glycerine solution) and on rocking experiment with blown glass bulb and sink.

[W.J.Green]  DEWAR/DE3/25  1920-21

2 pp

Contents:
MS
Notes on sky radiation measures and references to literature. Verso: notes in another hand on aliphatic hydrocarbons.

[W.J.Green]  DEWAR/DE3/26  [ca 1921]

½ p

Contents:
MS
Notes on sky thermoscope - theoretical radiation.

[W.J.Green]  DEWAR/DE3/27  May 1922-Nov 1922

6 pp

Contents:
MS
Observations on films.

[James Dewar & W.J.Green?]  DEWAR/DE3/28  [ca 1922]

2 pp

Contents:
MS
List of apparatus, with dates ?of purchase and with some prices.
Note on quartz vacuum vessels.

[W.J.Green]  DEWAR/DE3/29  [ca 1926]

12 pp

Contents:
Typescript & MS
Draft for paper: Specific heat of liquefied gases and of solids immersed therein. [Paper based on work done by Dewar in 1912, published under title "Calorimetry with liquefied gases below their boiling-points.]

[W.J.Green]  DEWAR/DE3/30  5 May 1913

2/3 p

Contents:
MS
Notes on liquid nitrogen calorimetry.

[W.J.Green]  DEWAR/DE3/31  undated

1 p

Contents:
MS
Curve: increase of pressure with time of melting oxygen (solidified oxygen on to gauge alone).

[W.J.Green]  DEWAR/DE3/32  [undated]

1½ pp

Contents:
MS
Notes on the age of the earth: radioactive data.

[W.J.Green]  DEWAR/DE3/33  [18 Oct 1910]

1 p

Contents:
MS
Calibration of graduated bulb tube used for coefficient of expansion of liquid hydrogen etc. (diagram).

[James Dewar]  DEWAR/DE3/34  [undated]

1 p

Contents:
MS
Curve: air space in shot.

[W.J.Green]  DEWAR/DE3/35  [undated]

4 pp

Contents:
MS
Notes of work on specific heat of liquid air and liquid oxygen, including notes on apparatus.

[W.J.Green & ?James Dewar]  DEWAR/DE3/36  [undated]

1 p

Contents:
MS
Calculations and notes concerning liquid oxygen calorimetry.

[W.J.Green]  DEWAR/DE3/37  [undated]

1 p

Contents:
MS
Calculations: coefficient of expansion of liquid hydrogen at 20.4A from graphical Waterston.

[W.J.Green]  DEWAR/DE3/38  [undated]

1/3 p

Contents:
MS
Calculations concerning specific heat of oxygen.

[W.J.Green]  DEWAR/DE3/39  [undated]

1 p

Contents:
MS
Specific heat. Notes of experiment from liquid air temperature to exhausted air temperature, using lead spheres.

[Davy Faraday Laboratory]  DEWAR/DE3/40  [undated]

1 p

Contents:
Print of photograph of laboratory.

[James Dewar & W.J.Green?]  DEWAR/DE3/41  [undated]

1 p

Contents:
MS
Notes concerning radiation, including references to literature.

[James Dewar & W.J.Green?]  DEWAR/DE3/42  [undated]

2 pp

Contents:
MS
References to literature concerning solar heat, solar constant and nocturnal radiation. With rough calculations and sketches of apparatus.

[James Dewar?]  DEWAR/DE3/43  [undated]

1 p

Contents:
MS
References to literature concerning radiation.

[James Dewar?]  DEWAR/DE3/44  [undated]

1¼ pp

Contents:
MS
References to literature concerning atmospheric transmissions.

[W.J.Green]  DEWAR/DE3/45  [undated]

2 pp

Contents:
MS
Calculations in connection with cubic mile of water.

[W.J.Green]  DEWAR/DE3/46  [undated]

1 p

Contents:
MS
Page of rough calculations in connection with graduations of tube.

[W.J.Green]  DEWAR/DE3/47  [undated]

9 pp

Contents:
MS
Pressure readings: calculations. Graduations based on mean from total volume of tube i.e. neglecting any variati ns of bore of the graduated capillaries. Includes notes on previous calibrations used up to 15 October 1913.
With diagram of apparatus: DE3/48 Verso: note on volume of pump and on circulation of air.

[Davy Faraday Laboratory]  DEWAR/DE3/49  [undated]

2 pp

Contents:
MS
Notes in various hands of weight of liquid oxygen obtained on 22 July and 11 August and of addresses and telephone numbers.

[Davy Faraday Laboratory]  DEWAR/DE3/50  undated

2/3 p

Contents:
MS; [hand unknown]
List of substances with low temperature melting points.

[W.J.Green]  DEWAR/DE3/51  undated

4 pp

Contents:
MS
Critical data, Rankin formulae and calculations of vapour pressures of xenon, krypton, argon and oxygen.

[James Dewar and W.J.Green]  DEWAR/DE3/52  undated

¾ p

Contents:
MS
Calculations: densities of oxygen.

[W.J.Green]  DEWAR/DE3/53  undated

1 p

Contents:
MS
Curves: tension of hydrogen dissolved in 15 grammes coconut charcoal at -185°c.

[James Dewar]  DEWAR/DE3/54  undated

1 p

Contents:
MS
Curve: potential for spark gap with 1cm balls.
Verso: sketches of apparatus and rough calculations by Green.

[Davy Faraday Laboratory]  DEWAR/DE3/55  undated

1 p

Contents:
Typescript
Table for candle correction: table for finding the rate of consumption of sperm by two candles in ten minutes from observations of the time required to burn forty grains.

[Davy Faraday Laboratory]  DEWAR/DE3/56  undated

1 photograph

Contents:
Photograph of apparatus for determining specific heats by exhaustion.
With rough sketch of apparatus [by Dewar]: 1p MS; DEWAR/DE3/57

[W.J. Green]  DEWAR/DE3/58  undated

1 p

Contents:
MS
Curve: variation of empty space in calorimeter with total nitrogen.

Laboratory notes - diffusion, soap films  DEWAR/Box DE4  ca.1914-20

[W.J.Green]  DEWAR/DE4/1  [ca June-Nov 1914]

60 pp

Contents:
MS
Folder of loose rough notes on experiments on diffusion of gases through hot platinum. Includes curves. With some notes by [Dewar].

File  DEWAR/DE4/2  1914 - ca 1915

[W.J.Green]  DEWAR/DE4/2/1  23-30 Dec 1914

4 pp

Contents:
MS
India rubber film diffusion: notes on experiments, with drawings of apparatus.

[W.J.Green]  DEWAR/DE4/2/2  6 Jan 1915

2 pp

Contents:
MS
Note on experiments with films and rough sketch of apparatus.

[W.J.Green]  DEWAR/DE4/2/3  7 Jan 1915

1 p

Contents:
MS
Note of results of experiments cooling film with blower air current cooled through liquid air.

[W.J.Green]  DEWAR/DE4/2/4  9 Jan 1915

¾ p

Contents:
MS
Note on effect of milk on india-rubber film.

[W.J.Green]  DEWAR/DE4/2/5  [Jan 1915]

1 p

Contents:
MS
Curve and notes: alteration of film diffusion rate with temperature.

[W.J.Green]  DEWAR/DE4/2/6  January 1915

24¼ pp

Contents:
Davy Faraday Laboratory MS
Notepad, mostly unused, containing notes of experiments on diffusion through india rubber membrances.

[W.J.Green]  DEWAR/DE4/2/7  February-March 1915

66 pp

Contents:
MS
Notepad containing calculations, curves and notes in connection with experiments on diffusion through thin films.

[W.J.Green]  DEWAR/DE4/2/8  March-December 1915

11 pp

Contents:
MS
Notepad containing curves in connection with work on diffusion of gas under pressure through india rubber films.

[W.J.Green]  DEWAR/DE4/2/9  31 March 1915

4 pp

Contents:
MS
Notes on work on india rubber films, including leak of india rubber film.

[W.J.Green]  DEWAR/DE4/2/10  [ca. March-April 1915]

1 p

Contents:
MS
Curve: diffusion of gases through india rubber membranes; variation of rate with pressure; temperature constant, O C.

[W.J.Green]  DEWAR/DE4/2/11  [ca. March-April 1915]

5 pp

Contents:
MS
Notes of work on diffusion through rubber membrane under pressure.

[W.J.Green]  DEWAR/DE4/2/12  April 1915

5 pp

Contents:
MS
Notes: the rate of transference through india rubber film of air and gases dissolved in liquids surrounding the film; leak of film (india rubber) in liquid aid, glycerin and water.

[W.J.Green]  DEWAR/DE4/2/13  April-May 1915

47 pp

Contents:
MS
Notes of experiments on diffusion of gases through thin films.

[W.J.Green]  DEWAR/DE4/2/14  [ca. May 1915]

2 pp

Contents:
MS
Notes on films: gylcerin and alcohol boiled, distilled water and alcohol boiled.

[W.J.Green]  DEWAR/DE4/2/15  13-25 May 1915

17 pp

Contents:
MS
Notes on rate of water diffusion through rubber film.

[W.J.Green]  DEWAR/DE4/2/16  [ca. May 1915]

2 pp

Contents:
MS
Thin films: effect of addition of soap bubble solution to distilled water.

[W.J.Green]  DEWAR/DE4/2/17  undated

1½ p

Contents:
MS
Drawing of apparatus for diffusion of gases through stretched india rubber; 1 atmosphere pressure into a vacuum.

[W.J.Green]  DEWAR/DE4/2/18  Feb-March 1915

2½ pp

Contents:
MS
Notes on diffusion rates through india rubber films, review by Maxwell of Wroblewski's "Diffusion of gases through absorbent materials" 1876, water diffusion through india rubber.

[W.J.Green]  DEWAR/DE4/2/19  undated

1½ pp

Contents:
MS
Notes: air leak through stretched india rubber - amount of uncondensable in gases leaking through india rubber from air.

[W.J.Green]  DEWAR/DE4/2/20  undated

2½ pp

Contents:
MS
Gas transfusion rate through india rubber film in various liquids; diffusion through Pt and Pd tubes and foil.

[W.J.Green]  DEWAR/DE4/2/21  undated

1 p

Contents:
MS
Curves: variation of gas diffusion rates with temperature through india rubber membrane; atmospheric pressure into a charcoal vacuum.

[W.J.Green]  DEWAR/DE4/2/22-23  undated

2 pp

Contents:
MS
Curves: diffusion of gases through india rubber membranes from atmospheric pressure into vacuum.

[W.J.Green]  DEWAR/DE4/2/24  undated

1 p

Contents:
MS
Curve, unlabelled: diffusion of gases.

[James Dewar] and [?] Gibbs  DEWAR/DE4/2/25  undated

1½ pp

Contents:
MS
Drawing of cross section of apparatus for study of rubber diffusion.
With notes on drawing by [Dewar]

[W.J.Green]  DEWAR/DE4/2/26  undated

2/3 p

Contents:
MS
Notes on rubber membranes - diffusion rates of gases and vapours, and list of diagrams.

[James Dewar]  DEWAR/DE4/2/27  undated

½ p

Contents:
MS
Note on rates of passage of hydrogen and air under pressure through rubber membrane.

[W.J.Green]  DEWAR/DE4/2/28  undated

2 pp

Contents:
MS
Notes on diffusion rates of hydrogen and air under pressure (through membrane).

[W.J.Green]  DEWAR/DE4/2/29  undated

1 p

Contents:
MS
Note of relative rates of leak of gases through india rubber into space above barometer column; these are compared with rates given by Graham in abstract.
Verso: rough calculations [by Dewar]; ½p, MS.

File  DEWAR/DE4/3  1915

[W.J.Green]  DEWAR/DE4/3/1  [1915]

31 pp

Contents:
MS
Notes on work on soap films, including rate of thinning of films, horizontal stability of bands, centrifugal displacement, forms of rings for supplying liquid gradationally to upper regions of film, visibility of bands.

William J.Green to James Dewar  DEWAR/DE4/3/2  29 Aug 1915

4 pp

Contents:
Mill Hill MS
Comments on superiority of the double bulb to the exhausted cell and discusses form of graduated guide scale which might be used for the double bulb and which would not obscure the film. Includes drawing of apparatus and of position of double bulb when throwing a film, draining the bulbs and in working position.

[James Dewar]  DEWAR/DE4/3/3  [1915]

2 pp

Contents:
MS
Sketches of bands on soap films, with rough notes on black film and sketches of apparatus.

[James Dewar]  DEWAR/DE4/3/4  [1915]

5½ pp

Contents:
MS
Notes of experiments on soap films - colour bands, movement of bands in vertical films.

[James Dewar]  DEWAR/DE4/3/5  undated

2 pp

Contents:
MS
Notes on spectrographic studies.

File  DEWAR/DE4/4  1916

[W.J.Green]  DEWAR/DE4/4/1-2  5-8 March 1916

3 pp

Contents:
MS
Notes on observations on bubbles, in particular the area of black in contracting bubbles.

[W.J.Green]  DEWAR/DE4/4/3-4  7-8 March 1916

2 pp

Contents:
MS
Soap bubbles: diagrams showing alteration in black zone of contracting bubbles.

[W.J.Green]  DEWAR/DE4/4/5  [ca. March 1916]

4 pp

Contents:
MS
Diagrams and calculations concerning area of black in contracting bubbles. With sketches of apparatus.

File  DEWAR/DE4/5  1915-1921

[W.J.Green & James Dewar]  DEWAR/DE4/5/1  Aug 1915-Feb 1916

14 pp

Contents:
MS
Thinning of films. Experiments with Na oleate, rubidium oleate, lithium oleate, Cs oleate (from oleic & Cs2CO3), K oleate, ammonium oleate.

[W.J.Green]  DEWAR/DE4/5/2  12 Feb 1916

2/3 p

Contents:
MS
Thinning of films; use of ammonium oleate solutions with glycerin.

[W.J.Green & James Dewar]  DEWAR/DE4/5/3  March 1916-June 1916

4 pp

Contents:
MS
Notes and curves: fall of black in bubble on steel ring.

[W.J.Green]  DEWAR/DE4/5/4  Feb-April 1917

5 pp

Contents:
MS
Experiments with bubble chains; blackening of bubbles.

[W.J.Green]  DEWAR/DE4/5/5-7  April 1917

3 pp

Contents:
MS
Shadowgraphs of bubble chains.

[W.J.Green]  DEWAR/DE4/5/8  23 May 1917

¾ p

Contents:
MS
Notes: altered configuration and curvature of bubble by contact with glass plane; control of volumes of bubbles.

[W.J.Green]  DEWAR/DE4/5/9  July 1917-Aug 1917

19 pp

Contents:
MS
Contraction of bubble columns: drainage and condensation of bubble column over water. Notes and curves.

[W.J.Green]  DEWAR/DE4/5/10  Oct-Dec 1917

3¼ pp

Contents:
MS
Notes of experiments on bubbles: bubble column in 200 litre globe; extension of black zone.

[W.J.Green]  DEWAR/DE4/5/11  6-9 Jan 1918

3 pp

Contents:
MS
Bubble columns - cellulose threads tied on to opposite sides of nozzle. Notes and measurements to determine configuration.

[W.J.Green & James Dewar]  DEWAR/DE4/5/12  Feb 1918

8 pp

Contents:
MS
Notes, calculations and diagrams of observations on bubble chains, including four-column, laid on side to form catenary.

[W.J.Green]  DEWAR/DE4/5/14  1917-21

21 pp

Contents:
MS
Bubble columns. Notes, chiefly on dimensions of bubble segments in column; experimental proof of effect of coalescence of two equal half bubbles; relative volume and surface of bubble chain compared with spheres of equal capacity and surface. Includes diagrams and three photographs of bubble chains.

[James Dewar & W.J.Green]  DEWAR/DE4/5/14  March 1920

2 pp

Contents:
MS
Notes on sky radiation observations.

J.D.H.Dickson to [James] Dewar  DEWAR/DE4/5/15  30 Nov 1921

1 p

Contents:
Cambridge MS
Gives details of values he has obtained for bubble measurements, including magnified and reduced values.
With notes:
Expression for curved surface of barrel: 1p, MS; DEWAR/DE4/5/16a
Corrections to table for diagram: ¾p, MS; DEWAR/DE4/5/16b.

J.D.H.Dickson to [James] Dewar  DEWAR/DE4/5/17  30 Nov 1921

12/3 pp

Contents:
Cambridge MS
Refers to photograph of bubble chain and gives his calculated values. Calculations again give surface of bubble greater than surface of equal sphere by 7½%. Gives corrected results for a bubble segment. Comments on shadow-graph he is enclosing.
With notes:
Extract from typed manuscript of paper to which certain values have been added; 1p, MS; DEWAR/DE4/5/18.
Notes and equations concerning calculation of volume of segment; with added comment [by Dewar]; 1½pp, MS; DE4/5/19.

J.D.H.Dickson to [James] Dewar  DEWAR/DE4/5/20  4 Dec 1921

2 pp

Contents:
MS
Is enclosing observations on hanging column of five segments; comments on this. Discusses the formulae used. Gives the values obtained; hopes these will be of help. Is sending the actual calculations.
Some annotations added by Green.
With calcularions: 1p, MS; DEWAR/DE4/5/21

[W.J.Green]  DEWAR/DE4/5/22  Feb 1918-Dec 1921

29 pp

Contents:
MS
Gas transference through bubble chains. Notes, curves, diagrams and photographs.

[W.J.Green]  DEWAR/DE4/5/23  7 Dec 1921

½ p

Contents:
MS
Cellulose drained segment bubbles: tabulated dimensions.

[W.J.Green]  DEWAR/DE4/5/24  undated

1 p

Contents:
MS
Rough calculations concerning bubble chains.

[W.J.Green & James Dewar]  DEWAR/DE4/5/25  undated

2 pp

Contents:
MS
Rough calculations and notes concerning fall of black in inclined films.

[W.J.Green and James Dewar]  DEWAR/DE4/5/26  undated

1 p

Contents:
MS
Notes and sketches of apparatus: projection and illumination of film on screen; illumination of film in exhausted cell.

[W.J.Green]  DEWAR/DE4/5/27  undated

1 p

Contents:
MS
Soap films. Notes on solid portion of oleic acid.

[W.J.Green & James Dewar]  DEWAR/DE4/5/28  July 1915

1½ pp

Contents:
MS
Notes on rate of fall of black film edge; cooling of film; eruption in film.

[W.J.Green & James Dewar]  DEWAR/DE4/5/29  August 1915

2 pp

Contents:
MS
Observations of films, chiefly results of warming films.

[W.J.Green]  DEWAR/DE4/5/30  August 1915

2 pp

Contents:
MS
Notes on rate of fall of black in film, slow descent of bands.

[W.J.Green]  DEWAR/DE4/5/31  23 Sept 1915

1 p

Contents:
MS
Rough notes and calculations concerning fall of black in film.

[W.J.Green & James Dewar]  DEWAR/DE4/5/32  28 Sept 1915

1¼ pp

Contents:
MS
Notes and rough sketches of blackening of film.

[W.J.Green]  DEWAR/DE4/5/33  29 Sept 1915

1/3 p

Contents:
MS
Notes on blackening of K oleate film in double bulb.

[James Dewar & W.J.Green]  DEWAR/DE4/5/34  undated

2 pp

Contents:
MS
Notes on electric effect on soap films: distortion of black film

[James Dewar]  DEWAR/DE4/5/35  undated

2½ pp

Contents:
MS
Observations on films, chiefly rate of fall of black. Includes note on effect of rotation on black film.
Note added [by Green] on Zamboni's dry piles.

[James Dewar]  DEWAR/DE4/5/36  Feb 1916

½ p

Contents:
MS
Rough measurements on films.

[James Dewar]  DEWAR/DE4/5/37  undated

½ p

Contents:
MS
Note of sky radiation observations.
Verso: reference to balloon observations.

[W.J.Green]  DEWAR/DE4/5/38  undated

1 p

Contents:
MS
Draft of curve; unlabelled.

File  DEWAR/DE4/6  1916-1920

[W.J.Green & James Dewar]  DEWAR/DE4/6/1  April-May 1916

13 pp

Contents:
MS
Blowing a hydrogen bubble; slow contracting and developing H bubble. Notes, with sketches of apparatus and curve showing development of black boundary.

[W.J.Green & James Dewar]  DEWAR/DE4/6/2  April-June 1916

12 pp

Contents:
MS
Hydrogen bubbles. Notes, curves, diagrams and calculations concerning diffusion rate.

[W.J.Green & James Dewar]  DEWAR/DE4/6/3  April-June 1916

15 pp

Contents:
MS
Hydrogen bubbles, including bubbles blown from side bulb of liquid and bubbles on wire rings. Notes, sketches of apparatus and curves of diffusion rate, black fall and contraction.

[W.J.Green]  DEWAR/DE4/6/4  Oct-Dec 1916

10 pp

Contents:
MS
Nitrous oxide bubbles. Notes, sketches of apparatus, curves showing contraction and black fall of bubbles.

[W.J.Green & James Dewar]  DEWAR/DE4/6/5  April-May 1917

61 pp

Contents:
MS
Notes and curves: diffusion of hydrogen through soap bubbles, half bubbles and films.

[W.J.Green & James Dewar]  DEWAR/DE4/6/6  March 1917-Jan 1918

35 pp

Contents:
MS
Gas transference at different pressures, studies in liquid films; bubble chains. Notes and curves.

[W.J.Green]  DEWAR/DE4/6/7  Feb 1918

2 pp

Contents:
MS
Bubble chains - diffusion of hydrogen.

[W.J.Green]  DEWAR/DE4/6/8  1919-20

11 pp

Contents:
MS
Notes, sketches of apparatus and curves relating to helium bubbles.

[W.J.Green]  DEWAR/DE4/6/9  undated

1 p

Contents:
MS
Curve: black soap film moving by diffusion, hydrogen and oxygen interchange.

[W.J.Green]  DEWAR/DE4/6/10  undated

1 p

Contents:
MS
Curves: hydrogen diffusion into and out of bubble.

File  DEWAR/DE4/7  1917

[James Dewar]  DEWAR/DE4/7/1-7  1917

7 items

Contents:
Photographs
Photographs of bubble chains.

[James Dewar]  DEWAR/DE4/7/8  1917

1 folder

Contents:
Folder of drawings of bubble chains

File  DEWAR/DE4/8  1929

G.Bowron to [W.J.] Green  DEWAR/DE4/8/1  11 Nov 1929

1 p

Contents:
Harrow
Is disposing of his stock; comments on this. Green still has the 200 volt motor; comments on this. Refers to his son, who is going in for radio engineering.
With lists of apparatus, including prices: 4pp, Ms; DEWAR/DE4/8/2-3.

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