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Catalogue of the papers and correspondence of EDWARD ARTHUR MILNE, FRS (1896-1950)


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Reference CSAC 102.6.84
Held by Oxford University, Bodleian Library, Special Collections and Western Manuscripts
Extent 11 boxes, ca 160 items
Source of acquisition The collection has been assembled from several sources.
The personal letters at CSAC 102.6.84/A.6 - CSAC 102.6.84/A.20 and the note on Geoffrey Milne at CSAC 102.6.84/A.21 are the gift of Mrs. M.K. Milne, widow of Geoffrey and sister-in-law of Arthur Milne.
The correspondence at CSAC 102.6.84/D.58 - CSAC 102.6.84/D.61 is the gift of Professor and Mrs. Theodore Dunham, friends with whom Milne's daughters stayed during the Second World War.
The photocopies of letters to H. Davenport at CSAC 102.6.84/D.53A were made available by Mrs. Anne Davenport.
The remainder of the material was assembled and given by Mrs. Margaret (Meggie) Weston-Smith and Miranda Weston-Smith (daughter and grand-daughter), who were also responsible for obtaining the photocopied documents and transcripts at CSAC 102.6.84/D.2 - CSAC 102.6.84/D.50, CSAC 102.6.84/D.51 - CSAC 102.6.84/D.53, CSAC 102.6.84/D.63 - CSAC 102.6.84/D.68.
Creators Milne, Edward Arthur, 1896-1950, scientist, mathematician and theoretical astrophysicist
Related information A fuller account of Milne's career can be found in the memoir by W.H. McCrea, Obituary Notices of Fellows of the Royal Society, 7, 1950-51, pp.421-443.
A little correspondence remains in family hands.
The manuscript of Milne's Edward Cadbury Lectures, 'Modern Cosmology and the Christian Idea of God', is held in the Library of Trinity College, Cambridge (Ref.: Add. Ms. a.228). The lectures were to have been given in the University of Birmingham in 1950 but Milne died in September of that year. The manuscript was edited by G.J. Whitrow and published in 1952.
Six letters by Milne to Sir Joseph Larmor written between 1930 and 1933 are held in the Royal Society, London.
A list of additional locations of letters by and to Milne can be found at 1916 - 1978
Note Compiled by Jeannine Alton and Peter Harper
The work of the Contemporary Scientific Archives Centre, and the production of this catalogue, are made possible by the support of the following societies and institutions:
The Biochemical Society
The Charles Babbage Foundation for the History of Information Processing
The Institute of Physics
The Institution of Electrical Engineers
The Institution of Mechanical Engineers
The Nuffield Foundation
The Rhodes Trustees
The Royal Society of London
The Wolfson Foundation
ACKNOWLEDGEMENTS
Professor D.G. Kendall, FRS, and Dr. J. Hendry gave helpful advice on the identification and description of some of Milne's notes and drafts.
Professor K. Hufbauer kindly made available his own reference list of locations of additional correspondence now included at CSAC 102.6.84/D.1.

Administrative history:
Milne was a distinguished mathematician and one of the founders of modern theoretical astrophysics.
Educated at Hymers College, Hull, and Trinity College, Cambridge, he became Assistant Director of the Solar Physics Observatory, Cambridge (1920), Beyer Professor of Applied Mathematics at Manchester (1925-28) and the first holder of the Rouse Ball Professorship at Oxford (1928-50). Milne served in both World Wars, on ballistics and sound-ranging at the Anti-Aircraft Experimental Station at Portsmouth 1916-18 (holding an R.N.V.R. Commission), and for the Ministry of Supply at the Ordnance Board as a 'Key Scientist' for much of the Second World War (1939-44).
W.H. McCrea, in his memoir of Milne for the Royal Society, distinguishes three principal phases in Milne's work: atmospheric problems in astrophysics (1920-29), stellar structure (1929-35) and the discovery and development of kinematic relativity (from 1932). Other topics on which he wrote and lectured include thermodynamics, statistical mechanics and pulsating stars.
An annual Milne lecture was founded under the auspices of Wadham College, Oxford, the first being given in 1978.

Contents:
SECTION A BIOGRAPHICAL AND PERSONAL CSAC 102.6.84/A.1-A.21
CSAC 102.6.84/A.1 - CSAC 102.6.84/A.4 Obituary notices and tributes
CSAC 102.6.84/A.5 - CSAC 102.6.84/A.21 Personal and family
SECTION B LECTURES AND PAPERS CSAC 102.6.84/B.1 - CSAC 102.6.84/B.10
SECTION C NOTES AND DRAFTS CSAC 102.6.84/C.1 - CSAC 102.6.84/C.58
CSAC 102.6.84/C.1 - CSAC 102.6.84/C.27 Thermodynamics
CSAC 102.6.84/C.28 - CSAC 102.6.84/C.51 Statistical Mechanics
CSAC 102.6.84/C.52 - CSAC 102.6.84/C.57 Relativity
CSAC 102.6.84/C.58 Milne's statistical problem
SECTION D CORRESPONDENCE CSAC 102.6.84/D.1 - CSAC 102.6.84/D.70
Milne died suddenly, away from home, in 1950 at the relatively early age of fifty-four. He had been twice widowed and had three still young children. In these circumstances there were more urgent tasks than the care of his papers, and the present collection assembled after considerable lapse of time has many gaps. In particular, there is little record of Milne's overseas travel for research and conferences or of his committee and editorial work, while the surviving correspondence, interesting though it is, is clearly no more than a fraction of the original corpus.
The lecture notes and drafts in Sections B and C indicate the range of Milne's mathematical and astrophysical interests reasonably well, if not as fully as could be wished. Perhaps the main interest is to be found in the correspondence. The letters to his parents and brother in Section A are revealing of his personality as well as of his work as a young man in the First World War. The letters to Chandrasekhar in Section D, while mainly on technical subjects and especially Milne's growing belief in his theory of kinematic relativity also contain many insights into his family life, bereavements, and daily struggles. There is clearly to be seen in both these sequences of correspondence Milne's deep love for Trinity College, Cambridge, whose traditions and ceremonies he accepted wholeheartedly and took part in whenever he could.



SECTION A BIOGRAPHICAL AND PERSONAL  CSAC 102.6.84/A.1-A.21  [n.d.]

OBITUARY NOTICES AND TRIBUTES  CSAC 102.6.84/A.1-A.4  [n.d.]

OBITUARY NOTICES AND TRIBUTES  CSAC 102.6.84/A.1  n.d

Contents:
Obituary notice by G.J. Whitrow.
3pp. Photocopy.

OBITUARY NOTICES AND TRIBUTES  CSAC 102.6.84/A.2  1950-1951

Contents:
Memoir by W.H. McCrea (Obituary Notices of Fellows of the Royal Society, 7, 1950-51).
Photocopy.

OBITUARY NOTICES AND TRIBUTES  CSAC 102.6.84/A.3  1955

Contents:
15pp. typescript draft obituary, by G.J. Whitrow, with ms. additions and notes by A.G. Walker, intended for a joint publication. With a ms. letter by Walker apologising for delay, February 1955.
Also includes 2pp. incomplete list of Milne's publications, paginated 14 and 15.

OBITUARY NOTICES AND TRIBUTES  CSAC 102.6.84/A.4  1950

Contents:
Letters from colleagues, sent to McCrea as author of Royal Society Obituary Notice, with information and reminiscences of Milne, 1950.
E.D. Adrian - on the incidence and effects of Milne's attack of epidemic encephalitis.
A.V. Hill - Milne's career in 1914-18 war, and return to Cambridge.
L.J. Mordell - Milne's family, and career at Manchester.
Ordnance Board - Milne's work for Board 1939-44.
F.J.M. Stratton.

PERSONAL AND FAMILY  CSAC 102.6.84/A.5-A.21  [n.d.]

PERSONAL AND FAMILY  CSAC 102.6.84/A.5  1950

Contents:
'My philosophy'
5pp. ms. autobiographical notes by Milne, describing the principal phases of his career and those who had influenced him. The work is dated 25 August 1950 (Milne died on 21 September of that year).
Attached to the ms. is an additional short note, perhaps intended as a covering letter.

Milne's letters to his brother Geoffrey, 1916-17, 1930-40.  CSAC 102.6.84/A.6-A.12  [n.d.]

Contents:
These are all autograph manuscript, usually dated and often voluminous. Occasionally only part of the letter survives and this is indicated in the entry. The letters include personal and mathematical material and their discursive style gives insight into Milne's personality.
Geoffrey Milne (1898-1942) was two years younger than Arthur. He was educated at Leeds University and served in the First World War with the King's Own Yorkshire Light Infantry and with the Royal Engineers Sound-ranging Section.
Afterwards he became an agricultural scientist with special interest in soil research, working in East Africa and elsewhere on tropical agriculture and soil conservation. A short account of his career, published in 1978 by Mrs. Kathleen Milne (widow), from which this information is drawn, is included at A.21.

Milne's letters to his brother Geoffrey, 1916-17, 1930-40.  CSAC 102.6.84/A.6  1916

Contents:
2 letters, one dated 20 May.
Includes some reference to the early part of Milne's work with A.V. Hill and R.H. Fowler at Anti-Aircraft Experimental Section, Munitions Inventions Department, though Milne writes that the information should be 'kept squat'.

Milne's letters to his brother Geoffrey, 1916-17, 1930-40.  CSAC 102.6.84/A.7  1917

Contents:
8, 24 May; 15 July; 26 August, addressed from H.M.S. Excellent, Portsmouth. Milne was commissioned as a Lieutenant R.N.V.R. in order to ensure against his being conscripted and perhaps transferred from his naval work. This is referred to (to be kept 'perfectly squat') in letters of 8 and 24 May. Letters of July and August describe 'stalling turns' and early experience of flying.

Milne's letters to his brother Geoffrey, 1916-17, 1930-40.  CSAC 102.6.84/A.8  1917

Contents:
21, 30 October; 11, 25 November; 6 December, all from H.M.S. Excellent.
Milne's letters of 30 October and 11 November discuss the problems of anti-aircraft defence, and the value of his department's research, in view of criticisms by the popular press.

Milne's letters to his brother Geoffrey, 1916-17, 1930-40.  CSAC 102.6.84/A.9  1930

Contents:
23 March; 5 August; 23 November, from Oxford.
Letter of 23 March is 2pp., lacking both beginning and end, and has a note 'To G.M. from E.A.M. 23 March 1930' in the hand of Mrs. K. Milne. Letter of 23 November is one sheet only.
Mainly concerned with Milne's work on stellar structure and his controversy with Eddington.

Milne's letters to his brother Geoffrey, 1916-17, 1930-40.  CSAC 102.6.84/A.10  1931-32

Contents:
25 January 1931; 10 August, 27 November 1932.
Letter of 10 August is last sheet only (numbered 15) of a letter, with a note 'To G.M. 10 August 1932' in the hand of Mrs. K. Milne.
Letter of 27 November is from Einstein Institute, Potsdam and lacks the lower half of the last page.
Mainly concerned with Milne's work on kinematic relativity. Letter of 27 November gives some account of the Potsdam Institute and scientists working there. Milne was in Germany on a fellowship from the Rockefeller Foundation.
Letter of 1931 refers to Geoffrey Milne's work at Amani, Tanganyika.

Milne's letters to his brother Geoffrey, 1916-17, 1930-40.  CSAC 102.6.84/A.11  1934-36

Contents:
13 May, 9 December 1934; 28 July 1935; 10 April 1936.
Letter of 13 May is incomplete (2pp. only); letter of 28 July is incomplete (2pp. only); letter of 10 April is 1p. only, lacks beginning and end and has a note 'From E.A.M. to G.M. 10th Ap. 1936' in the hand of Mrs. K. Milne.
Letter of 13 May describes controversial meetings of Royal Astronomical Society; letter of 28 July describes Milne's new ideas on 'structure of dynamics'; letter of 19 April refers to his papers on the inverse square law of gravitation (Proc. Roy. Soc. 160, 1937) of which Milne says 'I really think it would have interested old Newton.''

Milne's letters to his brother Geoffrey, 1916-17, 1930-40.  CSAC 102.6.84/A.12  1939-40

Contents:
4 September 1939; 3 July, 15 September, 30 October 1940.
Letter of 15 September is incomplete (3pp. only).
Mainly concerned with the outbreak of the Second World War, air-raids and the departure of Milne's two eldest children, Eleanor and Margaret, to America.
Letters of 4 September 1939 and 3 July 1940 are concerned with Beatrice Renwick whom Milne married as his second wife in June 1940 after her adventurous journey from New York through Italy and France during the German advance.

Personal and Family  CSAC 102.6.84/A.13  1917


Related information: See CSAC 102.6.84/A.14 for references to various flying tests as part of his pilot's training.

Contents:
Letter to 'George' [Heseltine].
One letter only, 2 February 1917, from H.M.S. Excellent, on research and personnel at Postsmouth.
Heseltine was a pilot and apparently a family friend;

Milne's letters to his parents, 1917-20.  CSAC 102.6.84/A.14-A.19  [n.d.]

Contents:
Milne seems to have addressed his letters separately to his mother and father, more or less turn and turn about, though the content of the letters does not vary according to the named recipient. Several of the letters are accompanied by the original envelope bearing a ms. date; there is an empty envelope at CSAC 102.6.84/A.19.

Milne's letters to his parents, 1917-20.  CSAC 102.6.84/A.14  1917

Contents:
2 March. Describes flight in 'Fighting Experimental' aircraft, and research under Fowler with his 'bristling manner'; also refers to George Heseltine (see CSAC 102.6.84/A.13).

Milne's letters to his parents, 1917-20.  CSAC 102.6.84/A.15  1918

Contents:
9, 17, 28 March.
All addressed from H.M.S. Excellent though letter of 9 March refers to work at Orfordness. Letters also refer to air defence of London, Milne's father's illness, and the war on the Western Front where Geoffrey Milne was then stationed.

Milne's letters to his parents, 1917-20.  CSAC 102.6.84/A.16  1918

Contents:
19 June (from Essex); 25 July (from Portsmouth).

Milne's letters to his parents, 1917-20.  CSAC 102.6.84/A.17  1918

Contents:
11, 22 September, both from First Army Anti-Aircraft Defences, B.E.F. France. In pencil.
General reflections on conditions and the progress of the war.

Milne's letters to his parents, 1917-20.  CSAC 102.6.84/A.18  1919

Contents:
12 October; 9, 23 November, all from Trinity College, Cambridge.
Letter of 12 October describes ceremonies of Milne's election as Fellow of Trinity, offer to him by H.F. Newall of post at Solar Physics Observatory, Cambridge personalities, research, etc.
Letters of 9 and 23 November describe customs and life at Trinity, mathematical meetings and research with Rutherford, etc.

Milne's letters to his parents, 1917-20.  CSAC 102.6.84/A.19  1920

Contents:
25 January; 30 April.
Cambridge news, details of post at Solar Physics Observatory, teaching, lecturing, research, social occasions.
Enclosed here is an empty envelope addressed to Milne's father and postmarked 6 February 1920.

Personal and Family  CSAC 102.6.84/A.20  1920

Contents:
Letter to Milne's father, 18 February 1920, from A.V. Hill, expressing his admiration of Milne and his work, and the hope that 'he will become one of the great scientists of the day'.

Personal and Family  CSAC 102.6.84/A.21  1978

Contents:
'Geoffrey Milne 1898-1942'
Note on the career and publications of G. Milne, by Kathleen Milne, 1978. Offprint from Geographers: Bibliographical Studies, published by the International Geographical Union Commission on the History of Geographical Thought and the International Union of the History and Philosophy of Science.

SECTION B LECTURES AND PAPERS  CSAC 102.6.84/B.1-B.10  [n.d.]

SECTION B LECTURES AND PAPERS  CSAC 102.6.84/B.1  1919


Related information: (See especially CSAC 102.6.84/A.18)
B.1 is Milne's notes of lectures he attended in Cambridge in 1919; CSAC 102.6.84/B.2-B.10 are his own lectures and papers.

Contents:
Red notebook of lectures attended by Milne in Cambridge. In his letters home he writes that he attends lectures whenever his own work permits.
The book includes:
'Chapman. Kinetic Theory of Gases. May Term 1919' (with some corrections and additions in pencil).
'Darwin on Theory of Quanta. Cavendish Lab.'
'Debye. Degrees of freedom in elastic vibrations of a solid' (Perhaps a single visiting lecture by Debye.)
'Stratton on Series in Line-spectra'
'Darwin on Bohr's Theory'
'J.J. [Thomson] Positive Rays'

SECTION B LECTURES AND PAPERS  CSAC 102.6.84/B.2  1923


Related information: See also CSAC 102.6.84/B.3.

Contents:
'The Physics of Stellar Atmosphere 1923'
Milne's original folder for a 'research course' of lectures intended to cover two terms. There is a bibliography, an outline of ten topics to be studied, examples and problems to be used, etc.
The pages are numbered, but not always in order, and there are several pages of additional material to be incorporated dated 1924, 1925, as well as many intercalated pages.

SECTION B LECTURES AND PAPERS  CSAC 102.6.84/B.3  1922

Contents:
'Addendum to the paper "The temperature in the outer atmosphere of a star"'
(Communicated by the Director of the Solar Physics Observatory, Cambridge.)
4pp. typescript draft, with a ms. note by Milne at head, 'July 1922. Never published. ?Not worth it'. The 'addendum' is to Milne's paper of the same title published in Mon. Not. R. Astr. Soc., 82, 1922.
This item was originally tucked into the folder of lecture notes at CSAC 102.6.84/B.2.

SECTION B LECTURES AND PAPERS  CSAC 102.6.84/B.4  n.d

Contents:
'The relations of mathematics to science'
Ms. draft for paper, probably for a Cambridge audience (perhaps Trinity College), n.d.
33pp. (with intercalated p.8a), and sequence paginated a-1 of Milne's translation of selected passages from Bergson.

'Radiation Theory and Astrophysical Applications'  CSAC 102.6.84/B.5, B.6  [n.d.]

Contents:
2 black spring-back binders, Volumes I and II for an extended course of lectures under the slightly different title 'Radiation Theory and its Applications in Astrophysics'.

'Radiation Theory and Astrophysical Applications'  CSAC 102.6.84/B.5  n.d

Contents:
Volume I, pp.1-139, with a few intercalated pages and additional notes in pencil.

'Radiation Theory and Astrophysical Applications'  CSAC 102.6.84/B.6  1923

Contents:
Volume II, pp.140-269, with a title page headed 'Second Term'. Some references dated 1922. Inserted between pp.225 and 226 is a 5pp. ms. paper by Milne 'Note on the evolution of the stars'. Addendum pp.187a, 187b is dated February 1923.

Lectures and papers  CSAC 102.6.84/B.7  n.d


Related information: See CSAC 102.6.84/C.3.

Contents:
Black spring-back notebook 'Lecture Notes on Thermodynamics'
Ms. notes for a course of lectures described as 'Schedule B', pp.1-102a.
There is an index (perhaps added later, on different format paper) of topics, some described as 'very important', 'important and very difficult', etc. The index goes up to p.128 but the last pages are no longer in the folder.

Lectures and papers  CSAC 102.6.84/B.8  1929

Contents:
'The aims of mathematical physics'. 1929.
(Milne's Inaugural Lecture, Oxford.)
Offprint of published text. Uncut.

Lectures and papers  CSAC 102.6.84/B.9  1931

Contents:
'The White Dwarf Stars'
Essay submitted for the Johnson Memorial Prize, 1931.
96pp., mainly ms. draft and diagrams; some typed pages.
In his covering letter Milne ('The Candidate') requests the return of the text and diagrams 'as they constitute original work of which I have no copy'.
The ms. is in the folder as received, which bears a variety of dates and descriptions.

Lectures and papers  CSAC 102.6.84/B.10  1932

Contents:
'The white dwarf stars'
(The Halley Lecture, given May 1932 and published that year by the Clarendon Press.)
50pp. typescript with ms. corrections and additions, in black spring-back folder.

SECTION C NOTES AND DRAFTS  CSAC 102.6.84/C.1-C.58  [n.d.]

Contents:
C.1 - C.27 THERMODYNAMICS
C.28 - C.51 STATISTICAL MECHANICS
C.52 - C.57 RELATIVITY
C.58 MILNE'S STATISTICAL PROBLEM
These are undated sequences for lectures and papers, some belonging to the Cambridge period and probably contemporary with the material at CSAC 102.6.84/B.5 - CSAC 102.6.84/B.7 (see especially CSAC 102.6.84/C.3) but with later additions and updatings.
The material was received grouped under the three main headings of thermodynamics, statistical mechanics and relativity and these have been retained, though it is clear from Milne's descriptive titles for some of his notes that they no longer necessarily correspond to their original state. Item CSAC 102.6.84/C.58 is a later analysis of a statistical problem posed by Milne.
Some sequences of notes are paginated by Milne, others were clipped together and have been retained in Milne's order. Sometimes he used the backs of examination scripts or class exercises for his notes, but much of the material is written on the cream-laid large quarto paper used for the 1920s lectures. Additional pages and later work are usually on smaller format paper.

THERMODYNAMICS  CSAC 102.6.84/C.1-C.27  [n.d.]

Contents:
Various sequences of notes and narratives, undated, the majority probably from the 1920s when Milne was working on atmospheric problems in astrophysics. The material was mainly intended for lectures and class problems but also in part for Milne's article 'Thermodynamics of the Stars' published as part of the Handbuch der Astrophysik (Berlin, 1930), or for other published work. Milne continued to lecture and publish on stellar thermodynamics throughout the 1930s, revising and updating his material accordingly. All the sequences, and the titles or opening phrases below, are Milne's.
C.23-C.26 are all same format paper, show similar features of handwriting, and may have been written at the same time.

THERMODYNAMICS  CSAC 102.6.84/C.1  n.d

Contents:
'Pure Thermodynamics'
5pp. Bibliography and introductory remarks for a course of lectures (latest quoted date 1933).

THERMODYNAMICS  CSAC 102.6.84/C.2  n.d

Contents:
Extensive sequence of notes and narratives, with pencil additions and revisions, paginated 1-54 with a later intercalated sequence at p.53.

THERMODYNAMICS  CSAC 102.6.84/C.3  n.d

Contents:
Extensive sequence of notes and narratives, paginated 92, 92.1 headed 'to be published sometime', and with a pencil note 'N.B. This is rather a swagger proof ...' and 108a-128 some also headed 'Publish sometime', 'replaced ...', etc. It seems likely that these are the pages missing from CSAC 102.6.84/B.7.

THERMODYNAMICS  CSAC 102.6.84/C.4  n.d

Contents:
'On the Second Law of Thermodynamics. By E.A. Milne' 7pp.

THERMODYNAMICS  CSAC 102.6.84/C.5  n.d

Contents:
Three sequences of notes and examples on 'simple substance'.

THERMODYNAMICS  CSAC 102.6.84/C.6  n.d

Contents:
Sequence paginated '61.1' - '64.4' and 2pp. related, referring to work of Gibb.

THERMODYNAMICS  CSAC 102.6.84/C.7  n.d

Contents:
Three sequences on 'Equilibrium of Heterogeneous Substances', paginated 1-3, 35-38, 63-64.

THERMODYNAMICS  CSAC 102.6.84/C.8  n.d

Contents:
'The rôle of friction in thermodynamics'

THERMODYNAMICS  CSAC 102.6.84/C.9  n.d

Contents:
'Properties of Thermodynamic Functions'

THERMODYNAMICS  CSAC 102.6.84/C.10  n.d

Contents:
'Electrolytic Cell ...'

THERMODYNAMICS  CSAC 102.6.84/C11  n.d

Contents:
'Porous Plug Experiment, pp.1-5, 1a, 2a.

THERMODYNAMICS  CSAC 102.6.84/C.12  n.d

Contents:
'Brief account of the classical thermodynamics', variously paginated (later addition).
'Clausius', 1p.

THERMODYNAMICS  CSAC 102.6.84/C.13  n.d

Contents:
'A mathematical treatment of chemical equilibrium', 23pp.

THERMODYNAMICS  CSAC 102.6.84/C.14  n.d

Contents:
'Conditions of equilibrium ...'

THERMODYNAMICS  CSAC 102.6.84/C.15  n.d

Contents:
'The Phase Rule'

THERMODYNAMICS  CSAC 102.6.84/C.16  n.d

Contents:
'Complex of two phases in equilibrium'

THERMODYNAMICS  CSAC 102.6.84/C.17  n.d

Contents:
'Semi-permeable membranes'

THERMODYNAMICS  CSAC 102.6.84/C.18  n.d

Contents:
'Partial potential of a perfect gas', with a ms. note 'Second Term' (early work).

THERMODYNAMICS  CSAC 102.6.84/C.19  n.d

Contents:
'Mixture of perfect gases', pp.1-4 with ms. revisions and intercalated pages.

THERMODYNAMICS  CSAC 102.6.84/C.20  n.d

Contents:
Three sequences of notes, and solutions to problems, on osmotic pressure.

THERMODYNAMICS  CSAC 102.6.84/C.21  n.d

Contents:
Two sequences of notes on vapour pressure (early work).

THERMODYNAMICS  CSAC 102.6.84/C.22  n.d

Contents:
Three sequences of notes on vapour pressure (later work).

THERMODYNAMICS  CSAC 102.6.84/C.23  n.d

Contents:
'Freezing point of a solution'

THERMODYNAMICS  CSAC 102.6.84/C.24  n.d

Contents:
'Thermodynamic Equilibrium in an External Field of Force'

THERMODYNAMICS  CSAC 102.6.84/C.25  n.d

Contents:
'Dissociated Equilibrium in gaseous mixtures', pp.1-66.

THERMODYNAMICS  CSAC 102.6.84/C.26  n.d

Contents:
'The Nernst Theorem and its Applications', pp.1-14.

THERMODYNAMICS  CSAC 102.6.84/C.27  n.d

Contents:
Miscellaneous problems and solutions in thermodynamics, one headed 'Special hard question. Original'.

STATISTICAL MECHANICS  CSAC 102.6.84/C.28-C.51  [n.d.]

Contents:
All this material was received crammed into Milne's original folder inscribed 'Notes on Statistical Mechanics'. It consists mainly of notes for courses of lectures at various dates, probably all at Oxford; CSAC 102.6.84/C.28 is early (c.1928), much of CSAC 102.6.84/C.29 et seq are later (c.1937). There are also analytical notes on earlier theories, presented here alphabetically for convenience, with Milne's comments or re-workings, and some longer narratives for lectures or publications.

STATISTICAL MECHANICS  CSAC 102.6.84/C.28  n.d

Contents:
Bibliography and introductory note on 'Fundamentals of the New Statistics'.

STATISTICAL MECHANICS  CSAC 102.6.84/C.29  C.1937

Contents:
'Introductory Lecture', pp.1-9, preceded by 2pp. note on 'My difficulties in beginning and preparing the course', and 1p. Bibliography, heavily annotated, with outline of course. Latest date quoted 1936; most of the authors listed are those whose work is discussed in the ms. notes and drafts.
Probably given at Mathematical Institute, Oxford, 1937.

STATISTICAL MECHANICS  CSAC 102.6.84/C.30  n.d

Contents:
'Classical statistical mechanics for ideal gas'.
Draft for lecture or paper, 26pp.

STATISTICAL MECHANICS  CSAC 102.6.84/C.31  n.d

Contents:
Unpaginated (13pp.) sequence of notes on 'classical' and 'new' statistics, with ms. note at head 'Important Ms.'.

STATISTICAL MECHANICS  CSAC 102.6.84/C.32  n.d

Contents:
Two sequences of notes on Boltzmann's hypothesis, 5pp. and 8pp.

Einstein-Bose statistics.  CSAC 102.6.84/C.33, C.34  n.d

Einstein-Bose statistics.  CSAC 102.6.84/C.33  n.d

Contents:
Two sequences of notes (perhaps earlier work).

Einstein-Bose statistics.  CSAC 102.6.84/C.34  n.d

Contents:
Three sequences of notes (perhaps later).

Statistical Mechanics  CSAC 102.6.84/C.35  n.d

Contents:
Fermi-Dirac statistics.
Three sequences of notes.
Also included here is an offprint of Milne's paper 'The dissociation formula according to the Fermi-Dirac statistics' (Mon. Not. R. Astr. Soc., 90, 1930).

Statistical Mechanics  CSAC 102.6.84/C.36  n.d

Contents:
Notes on R.H. Fowler's theories.

Extensive notes on the work of J. Willard Gibb.  CSAC 102.6.84/C.37-C.42  [n.d.]

Extensive notes on the work of J. Willard Gibb.  CSAC 102.6.84/C.37  n.d

Contents:
'Notes on Gibb' Statistical Mechanics', paginated 1-62, with several intercalated pages.

Extensive notes on the work of J. Willard Gibb.  CSAC 102.6.84/C.38  n.d

Contents:
'Notes from Gibb'

Extensive notes on the work of J. Willard Gibb.  CSAC 102.6.84/C.39  n.d

Contents:
'Criticism of Gibb'

Extensive notes on the work of J. Willard Gibb.  CSAC 102.6.84/C.40  n.d

Contents:
'Notes from Haas' comments on Gibb', paginated 1-36 + 4 unnumbered pages.

Extensive notes on the work of J. Willard Gibb.  CSAC 102.6.84/C.41  n.d

Contents:
'Notes from Lorentz' with a note 'To be inserted after notes on Haas', paginated 1-12.

Extensive notes on the work of J. Willard Gibb.  CSAC 102.6.84/C.42  n.d

Contents:
'Brillouin's account of the passage to Gibb', paginated 1-8.

Statistical Mechanics  CSAC 102.6.84/C.43  n.d

Contents:
'Notes from Pannekoek', paginated 1-22.

Statistical Mechanics  CSAC 102.6.84/C.44  n.d

Contents:
Three sequences of notes on Planck, and comparison of his work with Einstein-Bose statistics, 4pp., 11pp., 7pp.

Statistical Mechanics  CSAC 102.6.84/C.45  n.d

Contents:
Notes on J. Woltjer, 4pp.

Statistical Mechanics  CSAC 102.6.84/C.46  n.d

Contents:
Two sequences of notes on 'Dissociative Equilibrium', 7pp. (perhaps early work), 3pp. (perhaps later).

Statistical Mechanics  CSAC 102.6.84/C.47  n.d

Contents:
Five sequences of notes on 'relativistic' and 'non-relativistic' mechanics.

Statistical Mechanics  CSAC 102.6.84/C.48  n.d

Contents:
'Vapour pressure equation derivation', 4pp. (perhaps early work).

Statistical Mechanics  CSAC 102.6.84/C.49  n.d

Contents:
'Entropy formula' (perhaps early work).

Statistical Mechanics  CSAC 102.6.84/C.50  n.d

Contents:
'Motion of systems and ensembles ...' (perhaps early work).

Statistical Mechanics  CSAC 102.6.84/C.51  n.d

Contents:
Two sequences of untitled notes.

RELATIVITY  CSAC 102.6.84/C.52-C.57  [n.d.]

Contents:
None of the material is dated, though W.H. McCrea (Obituary Notices... 1950-51, p.435) describes Milne's work on 'kinematic relativity' as "his predominant scientific interest from 1932 onwards". CSAC 102.6.84/C.52 is a draft for a paper apparently intended for publication; CSAC 102.6.84/C.53-C.57 are sequences of notes and problems, probably for lectures.

RELATIVITY  CSAC 102.6.84/C.52  n.d

Contents:
'On Inertial Frames. By E.A. Milne'
14pp. ms.; latest references quoted are Milne's and McCrea's, 1934, 1935.

RELATIVITY  CSAC 102.6.84/C.53  n.d

Contents:
'Example in relativity', 3pp.

RELATIVITY  CSAC 102.6.84/C.54  n.d

Contents:
'Example in special relativity', 3pp.

RELATIVITY  CSAC 102.6.84/C.55  n.d

Contents:
'Lorentz transformations', 3pp.

RELATIVITY  CSAC 102.6.84/C.56  n.d

Contents:
'Material Energy-tensor', 5pp., annotated and revised.

RELATIVITY  CSAC 102.6.84/C.57  n.d

Contents:
'Easy example ...', 3pp.

MILNE'S STATISTICAL PROBLEM  CSAC 102.6.84/C.58  [n.d.]

'On a statistical problem by E.A. Milne'  CSAC 102.6.84/C.58  1972

Contents:
Photocopy of draft article by D.R. Cox and Agnes M. Herzberg, published in Proc. Roy. Soc. A, 331, 1972.

SECTION D CORRESPONDENCE  CSAC 102.6.84/D.1-D.70  [n.d.]

Contents:
The surviving correspondence is regrettably scanty. Attention is drawn to D.1, an itemised list of letters to and from Milne now located in other manuscript collections; this was compiled, and kindly made available, by Professor K. Hufbauer, University of California, Irvine.
The extensive folders of letters to S. Chandrasekhar at CSAC 102.6.84/D. 2 - CSAC 102.6.84/D.50 and CSAC 102.6.84/D.51 - CSAC 102.6.84/D.53 consist of photocopies from the originals in the Chandrasekhar archives deposited at the Joseph Regenstein Library, Chicago, and typed transcripts made by Miranda Weston-Smith. Similar photocopied material appears at CSAC 102.6.84/D.62 - CSAC 102.6.84/D.68, from originals at Churchill College, Cambridge, and at CSAC 102.6.84/D.53A.

CORRESPONDENCE  CSAC 102.6.84/D.1  [n.d.]

Contents:
List of letters to and from Milne in various manuscript collections in Britain, Norway, U.S.A., 1925-39, 3pp. + 1p. source collections. Compiled and made available for the present collection by K. Hufbauer.

Chandrasekhar, S.  CSAC 102.6.84/D.2-D.53  1929-50 and 1933-76

Contents:
CSAC 102.6.84/D.2-CSAC 102.6.84/D.50 is a chronological sequence of otocopies and typed transcripts (two copies) of Milne's contribution to an extensive exchange of letters and postcards 1929-50. Occasionally, letters to others occur in the sequence and this is indicated in the entries. Exceptionally, there are also letters from Chandrasekhar, at CSAC 102.6.84/D.16, CSAC 102.6.84/D.24, CSAC 102.6.84/D.43 CSAC 102.6.84/D.45, CSAC 102.6.84/D.47, CSAC 102.6.84/D.49.
The transcripts and photocopies are not exact duplicates: see CSAC 102.6.84/D.6, CSAC 102.6.84/D.8, CSAC 102.6.84/D.21, CSAC 102.6.84/D.23 for material occurring in one form and not the other. The transcripts often leave space for the insertion of technical terms or formulae which are of course present in the letters. There are also many errors of transcription of technical terms, proper names, and of ordinary manuscript readings.
The transcripts should always be checked against Milne's original as preserved in the photocopies.
The communications are frequent and often voluminous. The content is primarily research problems and publications or visits and lectures, generally somewhat formally expressed and dry in tone. From about 1939, with the heavy pressure on Milne of war-work, life in London, the care of his family, the loss of his second wife, brother and several old colleagues, he become less reserved and spoke more freely of his circumstances. The simple family life of the Milnes, and their joyful pleasure in the gifts (usually food) sent by Chandrasekhar, are touching, especially in contrast with the wholly abstract problems of Milne's professional life.
Most of Milne's letters are signed 'E.A. Milne'; later he relaxed to 'E. Arthur Milne' or occasionally 'Arthur Milne', and addressed his letters to 'My dear Chandrasekhar' or 'Dear Chandra' and his Christmas letters 'Dear Chandra and Lalitha'.
DCSAC 102.6.84/.51-CSAC 102.6.84/D.53 is a separate sequence (transcripts only) of personal correspondence, principally of letters to Chandrasekhar from Margaret and Eleanor Milne, 1933-76.

Chandrasekhar, S.  CSAC 102.6.84/D.2  1929

Contents:
One item only, comment (unfavourable) on a paper by Milne.
Not signed.
Photocopy and transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.3  1930

Contents:
One letter only, 2 November.
Photocopy and transcript.

Chandrasekhar, S.  CSAC 102.6.84/D.4  1931

Contents:
7, 13, 16, 29 January
12, 16, 17, 22, 27, 28 February
3, 7 March
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.5  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.6  1931

Contents:
13 April
Undated letter addressed from Manchester. The typescript of this letter has a ms. note 'Between 5.5.31. and 13.4.31' (where the letter now rests), but letter of 17 June mentions that Milne is 'off to Manchester tomorrow'.
5, 7 May
11 (2 letters), 17, 26, 27, 30 June
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.7  n.d

Contents:
Transcripts. Lacks the first letter of 11 June.

Chandrasekhar, S.  CSAC 102.6.84/D.8  1931

Contents:
16, 18, 19, 29 (followed by 1p. undated 'Notes by E.A.M.'), 30 October
5, 14, 18, 19, 24 November
9 December
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.9  n.d

Contents:
Transcripts; letter of 19 October differs considerably from the photocopy and it is likely that two or more originals have been conflated.

Chandrasekhar, S.  CSAC 102.6.84/D.10  1932

Contents:
2, 24, 29, 30 January
13, 24, 26 February. Letter of 13 February is to R.H. Fowler about arrangements for Chandrasekhar to work with Milne in Oxford. Letter of 26 February contains first mention of Milne's visit to Potsdam later in the year and the suggestion that Chandrasekhar might go too (he did not).
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.11  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.12  1932

Contents:
6, 9 (2 letters) 17, 18 March
19 June
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.13  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.14  1932

Contents:
These letters are all addressed from Potsdam.
1 (2 letters), 7 October
3 November
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.15  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.16  1933

Contents:
10, 18 January (includes Milne's proposal of Chandrasekhar as Fellow, Royal Astronomical Society.
25 March
3 (from Chandrasekhar), 16 May
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.17  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.18  1933

Contents:
7, 17 June
25 July (long letter on research problem on Cepheid stars which Milne hoped Chandrasekhar would tackle during a proposed visit, to work in Oxford).
5, 8, 19 August
10 (on Chandrasekhar's election to Fellowship at Trinity College, Cambridge), 12, 16 October.
15 November
20 December
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.19  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.20  1934

Contents:
16, 23 February
5, 10 March
27 September (long letter, mainly on Milne's theories of cosmology)
11, 19 October
n.d. ('Tuesday')
12, 25 December
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.21  n.d

Contents:
Transcripts. Includes transcript of an additional letter of 16 October not included at D.20.

Chandrasekhar, S.  CSAC 102.6.84/D.22  1935

Contents:
24 February
13 June
11, 14 October
16 November
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.23  n.d

Contents:
Transcripts. Includes transcript of an additional letter, 30 June, not included at D.22.

Chandrasekhar, S.  CSAC 102.6.84/D.24  1936

Contents:
25, 26 (from Chandrasekhar), 27 April
15, 20, 31 May
2, 14 November
13 December
Some of these letters include a little more personal material than usual. Letter of 31 May refers to Milne's shyness, and to his love of Trinity College, Cambridge; letters of November and December to Chandrasekhar's marriage, and move to Chicago.
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.25  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.26  1937

Contents:
7 January
20 April
23 May
26 December
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.27  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.28  1938

Contents:
5 November
26 December
Both letters refer to the death of Milne's first wife, Margaret ('Margot').
Photocopies and transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.29  1939

Contents:
25 January
18 February
30 March
29 May
25, 28 June
3 July
13 October
Several of these letters refer to the threat of war and Milne's engagement in war work. Letter of 13 October recalls his service in the First World War 'doing the same type of work, with partly the same colleagues'.
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.30  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.31  1940

Contents:
15 January
8 July (refers to Milne's second marriage to Beatrice Renwick after her 'thrilling and difficult journey' to reach Britain, and the departure of Eleanor and Margaret Milne to Canada and U.S.)
15 September
27 November (includes description of the installation of Trevelyan as Master of Trinity).
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.32  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.33  1941

Contents:
28 February
14 August
4 November
30 December
Includes reflections on war-work, conditions of life, Milne's Royal Medal, etc.
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.34  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.35  1942

Contents:
One letter only, 30 December
Photocopy and transcript.

Chandrasekhar, S.  CSAC 102.6.84/D.36  1943

Contents:
6 July
3 November
Photocopies and transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.37  1944

Contents:
20 January
15 March (Chandrasekhar's election to Fellowship of the Royal Society; death of Newall)
8 May
2 September (flying-bomb damage to Milne's London house and the family's return to Oxford; death of R.H. Fowler).
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.38  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.39  1945

Contents:
15 April
27 June
10 October
Mainly concerned with the illness, and death in August, of Milne's second wife Beatrice; also the return from America of Eleanor and Margaret.
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.40  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.41  1946

Contents:
22 February
8 June (2 copies)
29 December
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.42  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.43  1947

Contents:
2 (from Chandrasekhar), 19 June (describes quatercentenary celebrations at Trinity).
15, 28 (from Chandrasekhar) July
6, 18 (from Chandrasekhar) August
16 September
7 (from Chandrasekhar), 28 November (includes a rare reference to the 'unfortunate palsy', i.e. tremor, resulting from Milne's attack in 1923 of epidemic encephalitis whose late after-effects began to afflict him more perceptibly from 1945.
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.44  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.45  1948

Contents:
5 January (dated 1947 in error)
20 March
27 April (from Chandrasekhar)
3 May
10 (from Chandrasekhar), 20 August
18 December
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.46  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.47  1949

Contents:
15 March (from Chandrasekhar)
18, 19 July (2 letters on 19 July). Includes material re a paper by C. Prasad.
1, 2 (from Chandrasekhar) September
29 October
13 (from Chandrasekhar), 14, 23, 26 December
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.48  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.49  1950

Contents:
14 January
25 February
11 September (envelope only)
N.d. letter from Margaret (Meggie) Milne about her father's death (on 20 September).
14 October (from Chandrasekhar to W.H. McCrea with recollections of Milne and extracts from some of the letters).
Photocopies.

Chandrasekhar, S.  CSAC 102.6.84/D.50  n.d

Contents:
Transcripts.

Chandrasekhar, S.  CSAC 102.6.84/D.51  1933-38

Contents:
Transcripts of letters to Chandrasekhar
Includes letters from Margot Milne, two letters from Milne (8 September 1935, 10 August 1936), and a note and press-cutting on the death of Margot Milne 1938.

Chandrasekhar, S.  CSAC 102.6.84/D.52  1940-45

Contents:
Transcripts
Mainly letters from Meggie and Eleanor Milne but includes letter from M. Dunham.

Chandrasekhar, S.  CSAC 102.6.84/D.53  1950-1976

Contents:
Transcripts, 1950-56, 1975, 1976.
Letters exchanged between Meggie and Eleanor Milne and Chandrasekhar, re meetings, personal news, etc.

Chandrasekhar, S.  CSAC 102.6.84/D.53A  1926-27, 1945

Contents:
Davenport, H.
These are photocopies of letters from Milne to Davenport, made available by Mrs. A. Davenport in 1984, and with some transcriptions by her of illegible and technical terms.
Letters of 1926-27 refer to the award to Davenport of a scholarship at Trinity College, and his work for the Cambridge Tripos after his graduation from Manchester University where he had been a pupil of Milne, C. Walmsley and L.J. Mordell.
Letter of 1945 refers to work of contemporary mathematicians.

Dingle, H.  CSAC 102.6.84/D.54-D.57  1930-51

Contents:
Mainly scientific correspondence from Milne on his theories of stellar interiors and his controversy with Eddington. Dingle was Secretary of the Royal Astronomical Society 1929-32 and many of the letters re meetings and publications are written to him in that capacity.

Dingle, H.  CSAC 102.6.84/D.54  1930

Contents:
6 letters, July-December. Letter of 1 August refers to Milne's re-casting of his Bakerian Lecture in response to criticisms from Eddington (Obituary Notices, p.431).

Dingle, H.  CSAC 102.6.84/D.55  1931

Contents:
5 letters, June-September.

Dingle, H.  CSAC 102.6.84/D.56  1941-45

Contents:
4 letters. Letters of 1941, 1943, 1944 are on mathematical subjects; letter of 1945 is on the death of Beatrice Milne.

Dingle, H.  CSAC 102.6.84/D.57  1951

Contents:
Correspondence with Clarendon Press, Oxford, re Milne's Cadbury Lectures 'Modern Cosmology and the Christian Idea of God the Creator'. Includes Dingle's 4pp. report on the ms., which was published 1952.

Dunham, T. and Dunham, M.  CSAC 102.6.84/D.58-D.61  1929-47

Contents:
Mainly letters from Milne to Dunham and his wife. Dunham was an American astronomer and a friend of Milne from 1929. He and his wife Miriam were hosts to Milne's daughters Eleanor and Margaret from July 1940 to August 1945. The letters are numbered 1-13, and were given, along with the photocopies, by Dr. and Mrs. Dunham in 1979.

Dunham, T. and Dunham, M.  CSAC 102.6.84/D.58  1929-1939

Contents:
Letters, 1929-39, numbered 1-5. Item 4 is a formal note on the death of Margaret Milne.
10 November, 25 December 1929
11 July 1930
24 May 1939

Dunham, T. and Dunham, M.  CSAC 102.6.84/D.59  1940-1947

Contents:
Letters, 1940-47, numbered 6-13, addressed to both Theodore and Miriam Dunham.
17 August, 29 October 1940
1, 29 January 1941
8, 31 October 1945
30 December 1946
25 March 1947
Mainly about Milne's children and family affairs.

Dunham, T. and Dunham, M.  CSAC 102.6.84/D.60  n.d

Contents:
Photocopies of the letters, some with typed transcripts. Attached to copy of Milne's letter of 1 January 1941 is a copy of a letter from D.R. Pye to A.V. Hill about Dunham's wish to join the R.A.F. to help the British war effort.
Also enclosed are some of the original censored war-time envelopes.

Dunham, T. and Dunham, M.  CSAC 102.6.84/D.61  [n.d.]

Contents:
Letter from Dunham to R.A. Lyttelton and N. Hetherington explaining his family's connection with Milne and the origin of the letters, 1 December 1979.
Also included here are two copies of a list and summary of the letters.

Correspondence  CSAC 102.6.84/D.62  1943

Contents:
Eliezer, C.J.
Milne's papers on Rational Electrodynamics.

Hill, A.V.  CSAC 102.6.84/D.63-D.68  1918-50, 1955

Contents:
Photocopies of correspondence and papers made from the original documents held in Churchill College, Cambridge. Mainly from Milne.

Hill, A.V.  CSAC 102.6.84/D.63  1918-1921

Contents:
1918 (from Hill), 1919-21 (includes letters from Milne's father to Hill thanking him for his help with Milne's career, and letter from Milne on his father's death).

Hill, A.V.  CSAC 102.6.84/D.64  1926-1929

Contents:
1926-29 (marriage, research, move to Oxford).

Hill, A.V.  CSAC 102.6.84/D.65  1934-1935

Contents:
1934-35

Hill, A.V.  CSAC 102.6.84/D.66  1938-1946

Contents:
1938-46 (mainly war-work).

Hill, A.V.  CSAC 102.6.84/D.67  1950-1955

Contents:
1950 (one letter only, 10 June, describing visit to Whale Island and recollections of service in First World War).
Miscellaneous pages of calculations by Milne and Hill
Correspondence, 1950-51, between Hill and W.H. McCrea with recollections of Milne.
Letter 1955 from Meggie Weston-Smith (née Milne).

Hill, A.V.  CSAC 102.6.84/D.68  [n.d.]

Contents:
Papers about the 'Brigands' (humorous society of the Anti-Aircraft Research Establishment in First World War).

Correspondence  CSAC 102.6.84/D.69  1933

Contents:
Hubble, E. 1933
McVittie, G. C. 1933
Pannekoek, A. 1932

Correspondence  CSAC 102.6.84/D.70  1945

Contents:
Richmond, H. W. 1945
Ross, C. M. 1949
Recollections of Richmond.
White, F. P. 1948
Recollections of Richmond.

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