Finding Aid to the Lew Kowarski Papers, 1907-1981 (bulk 1930-1981)

Selected Search Terms

These papers have been indexed in the International Catalog of Sources for History of Physics and Allied Sciences (ICOS) using the following terms. Those seeking related materials should search under these terms.

Biography of Lew Kowarski

Lew Kowarski was born in St. Petersburg, Russia, on February 10, 1907. His father, Nicholas, was a businessman, and his mother, Olga Vlassenko, was a singer. He received a degree in chemical engineering from the University of Lyons in 1928. Kowarski went on to study physics, earning both his B. Sc. (1931) and D. Sc. (1935) degrees from the University of Paris. He became a naturalized French citizen on November 16, 1939.

Kowarski's active work in nuclear physics began in 1937 under the direction of Frédéric Joliot at the Collège de France. In 1939, Professor Joliot, Hans Halban, and Kowarski formed a research team which performed the crucial experiments that established the possibility of a nuclear chain reaction. When war broke out in 1940, Kowarski and Halban fled to England under rather dramatic circumstances and continued their work at the Cavendish Laboratory, Cambridge.

Kowarski was responsible for the design and construction of the first nuclear reactor in Canada (1945), and the first two reactors in France (1948 and 1952). He also played a key role in the founding of CERN (European Organization for Nuclear Research), and was named its first Director of Scientific and Technical Services in 1954. He was instrumental in developing CERN's computer capacities and went on to create the Data Handling Division, which he directed until his retirement in 1972. During this same time, he served as scientific advisor to the European Nuclear Energy Agency.

Kowarski published well over 100 papers, mostly in English, ranging in style from technical to popular. He held visiting professorships at Purdue University (1963-66), University of Texas at Austin (1967-71), and Boston University (1972-78).

Kowarski was a frequent speaker at scientific conferences in the United States and Europe. It was his desire to link research and scientific diplomacy through his travel and lectures. Later in life he became increasingly interested in the interaction of science and society and advocated bringing current and reliable information on nuclear technology to the public.

The distinctions bestowed on Kowarski included: Fellow, American Nuclear Society (1963); Decorated Officer of the Legion of Honor (1964); and U.S. Atomic Energy Commission Citation Award (1968).

Kowarski married Dorothée (Dora) Heller in 1929. They had one daughter, Irène Denise (Mrs. Gérard Hacques), and divorced in 1947. He married Kathe A. Freundlich, July 23, 1948.

He died on July 30, 1979.

Scope and Contents of Collection

The Lew Kowarski Papers provide an important source of documentation for the early history of nuclear fission research and reactor technology, and the impact of this research and technology on society.

Most of the material deposited covers the years 1939-1973. Among the topics documented is the collaboration among Kowarski, Frederic Joliot, and Hans Halban in Paris in 1939 and 1940 that resulted in experiments which helped to establish the possibility of a nuclear chain reaction. Kowarski and Halban continued this work in Britain after the invasion of France in 1940. From 1945 Kowarski pioneered the development of nuclear reactors in Canada, and then in France. After 1951, his administrative work was chiefly at the European Council for Nuclear Research CERN (the bulk of Kowarski's files from his work at CERN remain at CERN). His interests extended from technical problems of reactor construction to issues of international cooperation.

The papers are divided into eight series: Bibliographies, Correspondence, Notes and Manuscripts, Documents, Personal Materials, Publications, Lecture Materials, and Diaries.

Among the several accounts of Kowarski's career which are available is his own "Notice sur les Titres et Travaux Scientifiques," dated January 1966, which consists of a curriculum vitae and summaries of his work in various specialties (Series I, B.1, F.1). The social and political context of Kowarski's work in 1939-1951 is discussed in "Scientists in Power," by Spencer Weart (Cambridge: Harvard University Press, 1979).

Researchers should be aware of the Additions to the Lew Kowarski Papers (1907-1981) (see next paragraph). The first deposit and additions cover similar time periods but the first deposit has a substantially larger amount of earlier correspondence (late 1930s to 1950s) covering the period of Kowarski's pioneering research; the Notes and Manuscripts series in the first deposit is also from this earlier period (this earlier material has been indexed). Much of the correspondence in the additions relates to Kowarski's later (more administrative) work at CERN. Both collections include series of writings and publications, and lecture materials (with some duplication between collections but a larger selection in the additions). The first deposit only has series of diaries and of personal material. Overall there is some duplication between the collections but they are also complementary - both need to be reviewed to get the full picture.

The additions to the Lew Kowarski Papers document Kowarski's long and versatile career, and provide an important source of information on early nuclear fission research and reactor technology, the subsequent rise of nuclear science and its impact on society, and developments in the field of high-energy physics. Kowarski was an intellectual and social man who traveled frequently throughout the United States and Europe as a speaker, lecturer and advisor. He was an eloquent communicator with an extraordinary command of English and maintained life-long social and professional relationships with friends and colleagues throughout the world. Much of the correspondence is comprised of two-way communications since Kowarski kept carbon copies of his letters. Correspondents include: Luis Alvarez, Otto Robert Frisch, Samuel Goudsmit, William Frederick Miller, Joseph Rotblat, Maurice Shapiro, Victor Weisskopf, Eugene Wigner, and many others.

The collection covers the years 1930-1981, with the bulk of the material dated post-1950. Materials are in English and French, with a few pieces in German and Russian. Reflected in the correspondence and writings are insights into the social and political events of the day, and a chronicle of developments in the international community of atomic scientists, including: World War II and the movement of European scientists; the application of reactor technology; the social impact of nuclear technology; nuclear energy development at the U.S. atomic centers; the development of data processing devices in high- energy physics; the importance and uses of computers in science; international cooperation; and peaceful uses of atomic energy.

The collection contains a combination of manuscripts, notes, and reprints (many annotated) from which Kowarski drew his numerous writings and lectures. Kowarski's work at CERN was primarily administrative, involving lectures, travel arrangements, conference attendance, and the like. Except for his early work in atomic energy, and his involvement in establishing data processing at CERN (including the subsequent development of the Hough-Powell Digitizer) there is little information of a highly technical nature.

Arrangement of Collection

The order of the folders in the first deposit roughly follows Kowarski's own arrangement. The correspondence series is divided into several categories, within which items are arranged chronologically. In this series are copies of third-party correspondence sent to Kowarski to support his patent cases. The general and third-party correspondence prior to 1960 were indexed by Spencer Weart in 1973, as were the laboratory notes and reports, 1939-45. Indexed materials are noted with asterisks in the folder listing and the index of correspondents follows the folder listing.

The first deposit of materials consists of 9 boxes divided into 8 series. This material has been maintained as a distinct collection with a separate finding aid (including indices for Series II, III and IV - Correspondence, Notes and Manuscripts, and Documents).

Most of the correspondence in the additions covers the years 1960-1978 and arrived in chronological order, separated into incoming and outgoing. This arrangement was retained. There also were two sets of correspondence, 1953-1963, arranged alphabetically by correspondent, with incoming and outgoing together in chronological order; these two sets were integrated retaining the alphabetical and chronological arrangement. Several folders of miscellaneous correspondence from the early 1950s and late 1970s were kept as found, as subject files, since their contents are related. Some correspondence concerning writings and visiting professorships was left in context throughout Series II and III (Subject and Writings and Lectures).

Diaries were moved to an existing series in the first deposit and can be found in Series VIII (Folders 1, 3, 5-10). They cover the years 1932-1956 and include lab notes, daily appointments, accounts, notes on conversations, and travel dates.

The Lectures material (Series III) was found in several boxes, most coded by school and some in labeled folders. All coded materials and related matter have been brought together and arranged chronologically.

The Subject and Writings material (Series II) was largely coded or foldered by subject and organization. This material, received at different times, has been brought together and arranged chronologically. However, a portion of the Subject and Writings files (Series II F) was ordered according to a coded bibliography of Kowarski's work, 1930-1967; this arrangement was retained. The bibliography can be found in Box 14, Folder 8, along with additional copies annotated by Mrs. Kowarski beyond 1967. The subsequent folders of publications and writings are ordered according to the code numbers on the bibliographies.

There has been an attempt to adhere as closely as possible to Kowarski's arrangement and this has, in large part, been achieved with the coded materials. Folder titles have been retained when possible, though sometimes folders were relabeled for clarity. In some cases, subjects of particular note follow folder titles. The researcher should be aware that there has been no distinction made between personal, professional and family correspondence.

Access to Collection

Open to approved researchers without restriction.

Restrictions on Use of Collection

Use of primary source material in the Niels Bohr Library requires prior approval through an Application for Access, which includes a statement of research purpose and the names and addresses of two scholars as references. Access applications can be obtained by contacting the Library (telephone 301-209-3177; or e-mail nbl@aip.org). The application can also be printed from our website.

Provenance and Acquisition Information

The papers were in Kowarski's home in Geneva at the time of his death and were the gift of Mrs. Kate Kowarski, his widow. Some papers were retained by Mrs. Kowarski, and the bulk of his files from his work at CERN were kept at CERN.

The first deposit was received as a gift from Mrs. Kate Kowarski by the American Institute of Physics Niels Bohr Library in 1980.

The second deposit was received as a gift from Mrs. Kate Kowarski by the American Institute of Physics Niels Bohr Library in 1982, 1983, 1984, and 1985.

Processing Information

The first deposit was processed in August 1981.

The second deposit was processed by Vickie Allen in April 1996.

Duplicate materials and rusting paper clips and staples were removed from the collection. Fading and deteriorating materials were photocopied onto acid-free paper and the originals removed except when there was some value in retaining them. All materials were rehoused in archival quality, acid-free folders and boxes. Any notations made by the processor to aid identification were made in pencil and enclosed in brackets. All other notations were on the materials when received and include notations by Mrs. Kowarski to clarify names of correspondents.

Other Related Materials

Lew Kowarski Oral History Interview, 1969-1971

Lew Kowarski photographs in Emilio Segrè Visual Archives

Wolfgang Gentner Oral History Interview

Samuel A. Goudsmit Papers

Jules Guéron Oral History Interview

Hans Halban Papers, 1939-1940 - Microfilm

Heinrich Adolf Medicus - 8-mm, b&w silent film

Materials Separated from Collection

Photographs have been removed to the Emilio Segrè Visual Archives and replaced by photocopies.

Container List

First Deposit (Subgroup I)
		Series I: Bibliographies
Box 1	Folder 1		Bibliographies 1961-7
		Series II: Correspondence
Box 1	Folder 1		General correspondence 1938-40
			This folder has been indexed by name
	Folder 2		General correspondence 1941-5
			This folder has been indexed by name
	Folder 3		General correspondence 1946-53
			This folder has been indexed by name
	Folder 4		With Commissariat a l'Energie Atomique 1946-53
			This folder has been indexed by name
	Folder 5		General correspondence 1954-8
			This folder has been indexed by name
	Folder 6		General correspondence 1959-60
			This folder has been indexed by name
	Folder 7		General correspondence 1961-3
	Folder 8		General correspondence 1964-73
	Folder 9		With historians 1954-66
Box 2	Folder 10		Regarding French patents 1954-8
	Folder 11		Regarding French patents 1963-8
	Folder 12		Third party correspondence: non-U.S. 1938-45
			This folder has been indexed by name
	Folder 13		Third-party correspondence: non-U.S. 1946-59
			This folder has been indexed by name
	Folder 14		Third-party correspondence: U.S. Feb-Nov 1939
			This folder has been indexed by name
	Folder 15		Third-party correspondence: U.S. Feb-Dec 1940
			This folder has been indexed by name
	Folder 16		Third-party correspondence: U.S. Jan-Jun 1941
			This folder has been indexed by name
	Folder 17		Third-party correspondence: U.S. Jul 1941-Mar 1943
			This folder has been indexed by name
	Folder 18		Personal & family correspondence 1937-68
		Series III: Notes and Manuscripts
Box 3	Folder 1		Laboratory notes & reports 1939-40
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 2		Laboratory notes & reports 1939-45
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 3		Laboratory notes & reports 1942-5
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 4		Notes & memoranda 1946-66
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 5		Notes on nuclear technology 1945
	Folder 6		Notes on "constantes physiques" reactor manual project c. 1946
		Series IV: Documents
Box 4	Folder 1		General 1940-2
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 2		General 1943-5
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 3		Commissariat a l'Energie Atomique (C.E.A.) 1946-51
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 4		C.E.A. 1952-8
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 5		Reports to Haut-Commissaire, C.E.A. 1950-3
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 6		Reports to Haut-Commissaire, C.E.A. 1954-61
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 7		International nuclear energy organizations 1961-4
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 8		International nuclear energy organizations 1956-60
			This folder has an item index (not included in this finding aid -- see collection notes)
	Folder 9		"New Trends in Atomic Research..." 1961
	Folder 10		Applications & affidavits for French Patents 1939-42
Box 5	Folder 11		Applications & affidavits for French Patents 1946
	Folder 12		Applications & affidavits for (cont) French patents 1954-8
	Folder 13		Applications & affidavits for French patents 1963-8
	Folder 14		French patent specifications 1951-3
	Folder 15		Transcripts of U.S. hearings on French Patents Jun 1957
	Folder 16		Transcripts of U.S. hearings on French Patents Mar 1967
	Folder 17		Transcripts of U.S. hearings on French Patents May 1967
	Folder 18		Transcripts of U.S. hearings on French Patents May 1967
	Folder 19		Transcripts of U.S. hearings on French Patents May 1967
		Series V: Personal Material
Box 6	Folder 1		Biographical material
	Folder 2		Transcript of interview c. 1970
	Folder 3		U.S. Atomic Energy Commission Award 1968
	Folder 4		Newspaper clippings 1936-51
	Folder 5		Passes, identification papers
	Folder 6		Diplomas
	Folder 7		Miscellaneous
		Series VI: Publications
Box 7	Folder 1		Articles by Kowarski 1949-70
	Folder 2		Technical & scientific articles by others 1930-55
	Folder 3		Historical & biographical articles by others 1945-73
	Folder 4		Historical & biographical articles by others 1945-70
	Folder 5		Miscellaneous articles by others 1951-75
	Folder 6		ZOE 15th and 25th anniversary bulletins 1963 & 1973
	Folder 7		Kowarski, Les avants-projets de distribution du Gaz, (Paris: Dunod, 1938), photocopy (A11)
	Folder 8		Goldsmit, Bernard, Manuscript of book on atomic politics, with notes by Kowarski c. 1966
		Series VII: Lecture Materials
Box 8	Folder 1		Lecture notes on nuclear physics 1952-4
	Folder 2		Lecture notes from Univ. of Texas, Austin 1968-73
	Folder 3		Lecture transcripts (Purdue) 1963
	Folder 4		Lecture transcripts (Purdue) 1964
	Folder 5		Lecture transcripts (Saline Water Conversion) 1965
	Folder 6		Miscellaneous lecture & course notes 1947-73
		Series VIII: Diaries
Box 9	Folder 1		Journal des Expériences 1932-1933
			Note: This folder was moved from additions to Kowarski papers.
	Folder 2		H. Halban & L. Kowarski, Cavendish Laboratory, Cambridge 14 July-31 Dec 1940
	Folder 3		Five miniature diaries 1940-1946
			Note: This folder was moved from additions to Kowarski papers.
	Folder 4		Daily journal 1945
	Folder 5		Journal March 1946-Dec 1948
			Note: This folder was moved from additions to Kowarski papers.
	Folder 6		Daily agenda 1949-1950
			Note: This folder was moved from additions to Kowarski papers.
	Folder 7		Typed journal Jan-Feb 1950
			Note: This folder was moved from additions to Kowarski papers.
	Folder 8		Daily agenda 1951-1952
			Note: This folder was moved from additions to Kowarski papers.
	Folder 9		Daily agenda 1953-1954
			Note: This folder was moved from additions to Kowarski papers.
	Folder 10		Daily agenda 1955-1956
			Note: This folder was moved from additions to Kowarski papers.

Series Notes for Second Deposit (Subgroup II)

I. Correspondence, 1936-1978 Boxes 1-9
The correspondence is both social and professional in nature and covers a wide variety of topics of interest to Kowarski.
It is divided into three subseries.
		A. Subject files, 1936-1952
		Include wartime correspondence, material regarding Kowarski's efforts to obtain a U.S. visa, including news clippings, and one folder of miscellaneous material that remains as found.
		B. Alphabetical, 1952-1963
		Arranged by name of correspondent.
		Includes incoming, outgoing, and some third party material. At the end of this subseries are three subject folders, 1957-1961, that were left in original context.
		C. Incoming and Outgoing, 1963-1978
		Reflects a change in arrangement that occurred in the early 1960s.
		At the end of this subseries are two subject folders, 1975-1977, that were left in original context.

II. Subject and Writings, 1930-1981 Boxes 9-18
The earliest material contains Kowarski's research and lab notes and collaborative articles. The files also contain manuscripts, annotated drafts, notes, articles, reprints, and bibliographies that comprised his writings.
The arrangement is chronological.
		A. Prewar to 1940
		Includes research and lab notes, reprints, and manuscripts on crystal growth and municipal gas distribution.
		B. Wartime, 1940-1945
		Includes notes on fission research, neutron research, and the first Canadian reactor, ZEEP.
		C. Commissariat à l'Energie Atomique, 1946-1953
		Consists of two folders containing notes on the U.N. Security Council and materials from Premier Congrès du Progrès Scientifique et Technique, Paris.
		D. CERN, 1953-1972
		Includes writings on computers and science, computing needs at CERN, partial manuscript for "Magnum Opus," and work and consultations for UNESCO, OEEC, and ENEA.
		E. Post-CERN, 1972-1981
		Includes Ford Foundation proposal and articles and reprints on energy and society, popular writings, and material from Groupe de Bellerive.
		F. Kowarski's publications, 1930-1967
		Follows the arrangement of a coded chronological list of Kowarski's published writings dated November 1967 (Box 14/8).
		Includes copies of the list annotated by Mrs. Kowarski beyond 1967 and notes, manuscripts, articles, and reprints for many of these writings.

III. Lectures, 1960-1978 Boxes 19-22
This material is primarily handwritten lectures, lecture notes and transcripts, course materials, grade books, and related correspondence.
The arrangement is chronological, by location.

Container List

Second Deposit (Subgroup II)
		Series I. Correspondence
			A. Subject files, 1936-1952
Box 1	Folder 1			Correspondence and supporting documentation regarding French naturalization 1936-1940
	Folder 2			Miscellaneous correspondence; includes correspondence with publisher regarding a biography of Irène Curie; and congratulatory telegrams on Fort Châtillon reactor 1936-1951
	Folder 3			Wartime correspondence; includes personal correspondence with Andre Kostelanetz about Kowarski's brother, Kola 1941-1944
	Folder 4			Wartime correspondence between Cavendish Laboratory, Cambridge and Montreal 1943-1944
	Folder 5			Correspondence with Bulletin of the Atomic Scientists regarding possible assignment; and with S. Goudsmit concerning political affiliations and problems obtaining visa 1948-1957
	Folder 6			Correspondence regarding positions in the U.S., Australia, and Canada; includes a biographical sketch and list of publications 1950-1951
	Folder 7			Correspondence regarding appointment at Johns Hopkins University and subsequent failure to obtain visa 1951
	Folder 8			Correspondence with University of Chicago regarding invitation to participate in International Conference on Nuclear Physics; and with Bulletin of Atomic Scientists regarding failed visa efforts 1952
			B. Alphabetical, 1952-1963
Box 1	Folder 9			Correspondence, A 1952-1963
				Includes report on CERN by John B. Adams; and "Space Research in Europe" by E. Amaldi
	Folder 10			Correspondence, B 1954-1963
				Includes "L'Energie Atomique" by P. Biquard
	Folder 11			Correspondence, C 1955-1963
				Includes biographical material supplied to James Chadwick about Irène Curie for her obituary
	Folder 12			Correspondence, D 1954-1962
				Includes information from Sociètè Astra and Unilever N.V.
	Folder 13			Correspondence, E-F 1953-1963
				Includes correspondence with author, W. Eggleston, regarding his history of atomic energy in Canada; and correspondence with O.R. Frisch
Box 2	Folder 1			Correspondence, G 1954-1963
				Includes notes on conversation with P. Guillaumat
	Folder 2			Correspondence, H-I 1954-1962
	Folder 3			Correspondence, J-L 1954-1963
				Includes family correspondence regarding daughter's wedding, and wedding announcement
	Folder 4			Correspondence, M-O 1954-1963
	Folder 5			Correspondence, P-Q 1954-1962
				Includes correspondence with E. Pisani and the Council of Europe regarding study on European Energy Problems; and letter signed by Jean Piaget
	Folder 6			Correspondence, R 1952-1963
				Includes correspondence with J. Rotblat regarding 10th Pugwash Conference
	Folder 7			Correspondence, Sa-Sh 1953-1963
				Includes correspondence with M. Shapiro of the U.S. Naval Research Laboratory; and script of Hallmark Hall of Fame broadcast on World War II experience
	Folder 8			Correspondence, Si-Sz 1954-1961
				Includes correspondence with writer, Ray Silver, of Canadian Isotope Newsletter, asking for input for an article on wartime developments which led to the creation of the atomic bomb
	Folder 9			Correspondence, T-Z 1952-1962
				Includes correspondence with Robert Valeur, Counselor of the French Embassy, regarding people and events in the nuclear research community; and correspondence with V. Weisskopf and E. Wigner
	Folder 10			Correspondence regarding a possible visit to Jules Romain which did not happen 1957
Box 3	Folder 1			Correspondence regarding granting of U.S. visa and subsequent trips to U.S. atomic centers 1957-1960
	Folder 2			Correspondence regarding travel plans for trip to United Kingdom Atomic Energy Authority; and regarding short-term position as U.N. scientific advisor for conference on science and technology 1960-1961
			C. Incoming and Outgoing, 1963-1978
Box 3	Folder 3			Incoming correspondence 1963
	Folder 4			Incoming correspondence Jan-June, 1964
	Folder 5			Incoming correspondence July-Dec, 1964
				Includes letter from J. Russell regarding computer applications at Livermore; and letter of V. Weisskopf to the dedication of DESY (Deutsches Elektronen - Synchrotron)
	Folder 6			Incoming correspondence
				Includes invitation from University of California to join editorial board of the Journal of Computational Physics Jan-July, 1965
	Folder 7			Incoming correspondence Aug-Dec, 1965
	Folder 8			Incoming correspondence Jan-April, 1966
Box 4	Folder 1			Incoming correspondence May-Aug, 1966
	Folder 2			Incoming correspondence Sept-Dec, 1966
	Folder 3			Incoming correspondence Jan-April, 1967
	Folder 4			Incoming correspondence May-Aug, 1967
				Includes letter from W.F. Miller, Stanford University, regarding "picture parsing" on spark chamber film
	Folder 5			Incoming correspondence Sept-Dec, 1967
	Folder 6			Incoming correspondence Jan-June, 1968
	Folder 7			Incoming correspondence July-Dec, 1968
				Includes letter from L. Alvarez with biographical information for article to be written by Kowarski
Box 5	Folder 1			Incoming correspondence Jan-May, 1969
				Includes invitation to join Advisory Committee to set up summer school on Computing and Data Handling at CERN
	Folder 2			Incoming correspondence June-Dec, 1969
	Folder 3			Incoming correspondence Jan-April, 1970
	Folder 4			Incoming correspondence May-Aug, 1970
				Includes letter from L. Alvarez with drawn diagram regarding his patented research on variable focus lenses (in response to Kowarski's cataract surgery)
	Folder 5			Incoming correspondence Sept-Dec, 1970
	Folder 6			Incoming correspondence Jan-June, 1971
	Folder 7			Incoming correspondence July-Dec, 1971
Box 6	Folder 1			Incoming correspondence Jan-June, 1972
	Folder 2			Incoming correspondence July-Dec, 1972
	Folder 3			Incoming correspondence Jan-June, 1973
	Folder 4			Incoming correspondence July-Dec, 1973
	Folder 5			Incoming correspondence Jan-June, 1974
	Folder 6			Incoming correspondence July-Dec, 1974
	Folder 7			Incoming correspondence Jan-June, 1975
Box 7	Folder 1			Incoming correspondence July-Dec, 1975
	Folder 2			Incoming correspondence 1976
	Folder 3			Incoming correspondence 1977-1978
	Folder 4			Outgoing correspondence 1963
	Folder 5			Outgoing correspondence 1964
	Folder 6			Outgoing correspondence Jan-June, 1965
	Folder 7			Outgoing correspondence July-Dec, 1965
	Folder 8			Outgoing correspondence Jan-June, 1966
	Folder 9			Outgoing correspondence July-Dec, 1966
				Includes letter to R. Jungk regarding the early history of CERN and the development of the Hugh-Powell Digitizer
Box 8	Folder 1			Outgoing correspondence Jan-June, 1967
	Folder 2			Outgoing correspondence July-Dec, 1967
	Folder 3			Outgoing correspondence 1968
	Folder 4			Outgoing correspondence 1969
	Folder 5			Outgoing correspondence Jan-June, 1970
	Folder 6			Outgoing correspondence July-Dec, 1970
	Folder 7			Outgoing correspondence Jan-June, 1971
	Folder 8			Outgoing correspondence July-Dec, 1971
	Folder 9			Outgoing correspondence 1972
Box 9	Folder 1			Outgoing correspondence Jan-June, 1973
	Folder 2			Outgoing correspondence July-Dec, 1973
	Folder 3			Outgoing correspondence Jan-June 1974
	Folder 4			Outgoing correspondence July-Dec 1974
	Folder 5			Outgoing correspondence 1975
				Includes completed Pugwash questionnaire
	Folder 6			Outgoing correspondence 1976
	Folder 7			Outgoing correspondence 1977-1978
	Folder 8			Correspondence regarding publication of proposed book: "Scientists vs. Society" (incoming and outgoing) 1975-1976
	Folder 9			Correspondence regarding Workshop on Alternative Energy Strategies report; and on proposed thorium fuel cycle symposium (incoming and outgoing) 1977
		Series II. Subject and Writings
			A. Prewar to 1940
Box 9	Folder 10			Early work on surface physics and crystal growth; includes notebook and graphs 1931-1932
	Folder 11			Early work on crystal growth; includes mimeographed report, not dated
	Folder 12			Reprints by others on municipal gas distribution and transport 1932-1937
	Folder 13			Early research on the distribution of municipal gas 1934-1935
Box 10	Folder 1			Notes and calculations on the distribution of municipal gas; includes two reprints by others dated 1927 and 1935, 1934-1940
	Folder 2			Manuscript for "Les Avants-Projects de Distribution du Gaz" (A 11); includes related correspondence 1938
	Folder 3			Notes for a popular talk not dated
			B. Wartime, 1940-1945
Box 10	Folder 4			Report on fission research and discussion of experiment carried out in Cambridge Sept-Dec, 1940
	Folder 5			Notes for an experiment, remarks on absolute measurements of neutron sources, notes and chart for program of the Slow Neutron Team, list of reports 1940-1945, 1940-1945
	Folder 6			Comments on the Fermi-Urey Conference of March 6-8, 1943 regarding review of the Cambridge fission experiment 1943
	Folder 7			Notes on design of Canadian pilot reactor, ZEEP (Zero Energy Experimental Pile) 1944-1946
	Folder 8			Personal summary of Volkoff's lectures, Montreal- handwritten notes 1945-1946
			C. Commissariat à l'Energie Atomique, 1946-1953
Box 10	Folder 9			Notes regarding U.N. Security Council July 1946
	Folder 10			Programs, report and correspondence regarding the Premier Congrès du Progrès Scientifique et Technique 1951
			D. CERN, 1953-1972
Box 10	Folder 11			Programs, reprints and correspondence regarding international conferences 1956-1959
	Folder 12			Materials regarding consultant work for UNESCO on matters related to the United Peaceful Uses of Atomic Energy 1955-1956
	Folder 13			Correspondence related to UNESCO work 1955-1956
	Folder 14			OEEC (Organization for European Economic Cooperation) papers from Study Group on Experimental Reactors 1956-1957
	Folder 15			OEEC papers on Experimental Heavy Water Reactor Project - "Ingrid" (Sweden) 1958-1959
Box 11	Folder 1			Swedish Heavy Water Project - "Ingrid" 1958-1959
	Folder 2			Correspondence regarding Swedish Heavy Water Project - "Ingrid" 1958-1959
	Folder 3			ENEA (European Nuclear Energy Agency) - miscellaneous projects; includes OEEC reports and reprints 1956-1958
	Folder 4			Notes on visits to U.S. atomic centers following granting of visa 1957-1959
	Folder 5			ENEA projects; includes papers and reports by others, and news clippings 1959-1960
	Folder 6			Publications and conference material on high-energy physics and visual data handling; Estimate of Future Computing Needs of CERN; includes correspondence 1960-1964
	Folder 7			Notes on conferences; Development of Experimental Techniques (CERN); brief biography and bibliography; bibliography with comments: Holograms for Bubble Chambers 1965-1966
	Folder 8			ENEA conference, Paris: concluding remarks 1966
	Folder 9			ENEA project: NELT- Study of nuclear energy as a long-term energy source in Europe 1967
	Folder 10			ENEA project: Correspondence related to study of nuclear energy as a long-term energy source in Europe (NELT) 1967
Box 12	Folder 1			Notes and drafts: international cooperation in science; Conference on Nuclear Studies, Grenoble; Expose de M. Kowarski; ORTF; Polly 1967
	Folder 2			Notes on the Use of Computers at Brookhaven in High-Energy Physics Experiments with Electronic Detectors 1968
	Folder 3			ENEA- Japan trip; includes correspondence 1968
	Folder 4			"Magnum Opus" (Big Science): notes, partial draft and correspondence 1969
	Folder 5			Recognition of Visual Data in High-Energy Physics- chapter for book, Computers and Their Role in Science 1968-1970
	Folder 6			Papers for 9th Pugwash Symposium June 1970
	Folder 7			Draft manuscripts: New Scientist article; European 300 GeV Accelerator Program; and Impact of Computers on Nuclear Science 1970-1971
	Folder 8			United Nations consultations 1970
	Folder 9			United Nations consultations 1971
	Folder 10			United Nations consultations, related correspondence 1970-1971
Box 13	Folder 1			Computers: Definitions and History not dated
			E. Post-CERN years, 1972-1981
Box 13	Folder 2			Reprints and manuscripts; includes notes on a conversation with P. Moeschler; and notes on consultations in America 1972
	Folder 3			Ford Foundation: proposal for Geneva Science Policy Program 1971-1972
	Folder 4			Ford Foundation: proposal for a study and travel grant 1972
	Folder 5			Ford Foundation: correspondence related to study and travel grant 1971-1972
	Folder 6			Notes, articles and reprints: CERN Courier, L'Express, Human Choice and Computers Conference, and Science Forum on Canadian CANDU system 1973-1974
	Folder 7			Encyclopaedia Universalis article 1974
	Folder 8			La Fleche du Temps- transcript of interview, AECL-Montreal 1974
	Folder 9			Newspaper articles, notes, and reprints; includes article on ZEEP, note for A. Chayes on dominant nuclear technology and its rationale 1975-1976
	Folder 10			Articles and reports on energy and society, energy developments and alternatives Jan-May, 1977
Box 14	Folder 1			Articles: includes letter to The Economist, manuscript for Le Savant Devant le Pouvoir, and reprint from History of Twentieth Century Physics June-Dec, 1977
	Folder 2			Groupe de Bellerive- Declaration and list of members 1977
	Folder 3			Groupe de Bellerive- Declaration, reports, and articles 1979
	Folder 4			Articles by Jean Mussard; most from La Revue Polytechnique 1970-1978
	Folder 5			Notes for conferences and articles; reprints of 1939 fission experiments by Halban, Joliot, and Kowarski; and Un Nouveau Rôle pour les Savants 1978-1979
	Folder 6			Energie et Societe, UNESCO, Paris; collection of presentations given at colloquium sponsored by Groupe de Bellerive Sept. 1981
	Folder 7			Energie et Societe, UNESCO, cont'd. Sept. 1981
			F. Kowarski's publications, 1930-1967
Box 14	Folder 8			Liste des Publications Scientifiques et Techniques: coded bibliography of works (Codes below relate to this list.) 1930-1967
	Folder 9			A5, A8 (Illustrations only), A14, A15, A18, A21, A22 1932-1939
	Folder 10			A23 - A25 1940-1941
Box 15	Folder 1			A27 - A29 1941
	Folder 2			A32, A33, A36 1942-1943
	Folder 3			A42, A44 - A46 1946-1950
	Folder 4			A47 1950
	Folder 5			A48 - A51 1951-1953
	Folder 6			A52 1954
	Folder 7			A53 1949-1951
	Folder 8			A54 1955-1957
	Folder 9			A54 1955-1957
	Folder 10			A55 1956
	Folder 11			A56 1960
Box 16	Folder 1			A57 1961-1962
	Folder 2			A57 1961-1962
	Folder 3			A58 1961
	Folder 4			A59 1962-1963
	Folder 5			A60 1967
	Folder 6			A61, A62 1958-1960
	Folder 7			A63 - A65 1963-1965
	Folder 8			A66 - A68 1965-1968
Box 17	Folder 1			B1 1956-1957
	Folder 2			B3 1960
	Folder 3			B3 1958-1961
	Folder 4			B4 1960
	Folder 5			B5 - B7, B9 - B11, B13 1946-1953
	Folder 6			B14 - B20 1945-1953, 1965
	Folder 7			B21 - B23 1953-1954
	Folder 8			B24 1955
	Folder 9			B25 1955
	Folder 10			B26 1956
Box 18	Folder 1			B27 1957-1958
	Folder 2			B28 1957
	Folder 3			B29 1957
	Folder 4			B30 1957
	Folder 5			B31 1958
	Folder 6			B33 - B36 1963-1965
	Folder 7			B37, B38 1965
	Folder 8			B39 - B42 1966-1967
	Folder 9			B43 1968
	Folder 10			B44 1968
		Series III. Lectures
			A. Europe and Canada
Box 19	Folder 1			Stresa: typed lecture with annotatations 1959
	Folder 2			Saclay lectures 1965
	Folder 3			Saclay course plan and lecture transcripts Dec 1965-Jan 1966
	Folder 4			Saclay course notes and lesson plans 1966
	Folder 5			Saclay conferences transcripts; poster 1966
	Folder 6			Lectures: Palais de la Dècouverte and CERN 1966
	Folder 7			Lectures: Dauphine, Lund, Malmö, Strasbourg 1967
	Folder 8			Lectures: Bordeaux, CERN, Culham, Dubna 1968-1969
	Folder 9			Lectures: Bordeaux, Cambridge, CERN, Lausanne, Varenna 1970
	Folder 10			CERN seminar course, Trieste: Computing as a Language of Physics July 1971
	Folder 11			Lectures: Chalk River, Geneva, Varenna 1971-1972
Box 20	Folder 1			Lectures: Geneva, Montreal, Strasbourg; includes note to J. Mussard 1973-1977
	Folder 2			Erice: lecture materials 1975
			B. United States
Box 20	Folder 3			California: lectures 1960-1974
	Folder 4			Argonne National Laboratory, IL: lectures 1962-1964
	Folder 5			Purdue University: notes, lectures, course materials, student profiles 1963-1964
	Folder 6			Purdue University: notes, lectures, course materials, grade sheets 1964
	Folder 7			Purdue University: lectures, course materials, news clippings 1965
	Folder 8			Purdue University: transcripts of lectures 1966
	Folder 9			Purdue University: discussions on the location of the 200 Bev facility April 1966
	Folder 10			Purdue University: notes, lectures, and suggestions on nuclear engineering education 1966
Box 21	Folder 1			Purdue University: six lectures on Voicewriter discs 1966
	Folder 2			Purdue University: correspondence related to visiting professorship 1963-1966
	Folder 3			University of Texas: notes on desalting, lecture 1966
	Folder 4			University of Texas: notes, lectures, course materials 1968
	Folder 5			University of Texas: notes, lectures, course materials, grade book 1969
	Folder 6			University of Texas: lectures, course materials 1970
	Folder 7			University of Texas: lecture transcripts 1971
	Folder 8			University of Texas: lecture notes, course materials, memo on problems at UT Austin; notes for Purdue and Utah 1971
	Folder 9			University of Texas: correspondence related to visiting professorship 1967-1971
	Folder 10			Boston University: lectures, course materials, grade book 1971-1973
	Folder 11			Boston University: course notes 1973
Box 22	Folder 1			Lecture notes for Minneapolis 1973
	Folder 2			National Accelerator Laboratory, Batavia, IL: lecture and correspondence 1974
	Folder 3			Boston University: lectures, course materials 1974-1975
	Folder 4			Boston University: lectures, course materials, energy conversion factors chart, and booklet 1976-1978
	Folder 5			Boston University: correspondence related to visiting professorship 1971-1978

Partial Index of the First Deposit (Subgroup I) -- Correspondence of Lew Kowarski

Principal items not catalogued are: (1) most family letters, (2) all letters from 1960 on, (3) C.E.R.N. letters, (4) most letters dealing with French patents from 1954 on. In addition to letters, some memoranda, lecture notes, etc., are catalogued.

The box and folder numbers are in the left hand column. K=L. Kowarski. 51-53 5(8) means: between 1951 and 1953 inclusive, the collection contains 5 letters with a total of 8 sides. Letters between parties other than Kowarski are listed under both names for (this third party correspondence see senders name for the box/ folder location).

Precise information on the letters is on file cards located with the collection (Box 9). A large number of the letters are drafts, carbon copies, or reproductions. Original card indexed created by Spencer Weart, August 1973.

AKERS, Wallace A. -- B.2 F.13 To Rapkine, L. 46 3(4); B.1 F.2-3 K 42-46 8(14) From Broda, Fenning, Freundlich, Guéron, Hereward, Kemmer, Maddock & May 43 1(2); Cockcroft 45 1(1); Halban, H., Jr. 43-45 2(4); Halban, H., Sr. 39 1(1); B.1 F.2-3 K 42-46 7(13)
ALLIER, Jacques -- B.1 F.6 to K 60 1(2)
AMBASSADE DE FRANCE AU CANADA -- B.1 F.1 to K 45 1(1)
AMBROSINO, G. -- B.2 F.13 to Surdin 48 1(1)
ANDERSON, Sir John -- B.1. F.3 to K 46 1(1)
APPLETON, Edward -- B.1 F.2 to K 44 1(2); B.1 F.2 from K 44 2(2)
AUBINEAU, Y. -- B.1 F.5 to K 55 1(1)
BAUER, E. -- B.1 F.3 to K 46 1(1)
BIQUARD, Pierre -- B.1 F.9 to K 66 1(1); from Blok, A. 46 1(1); B.1 F.9 K 66 1(1)
BLOK, Arthur -- B.1 F.2 memorandum 1942 2p.; B.2 F.13 to: Biquard 46 1(1); B.1 F.2-3 K 45-46 2(2); B.1 F.2 from K 42 1(2)
BORST, Lyle B. -- notes from lecture, Columbia physics colloquium, 10 Jan. 1946, 11p.
BRETSCHER, E. -- B.1 F.3 to K 46 1(2)
BRIGGS, R. B. -- B1. F.5 to K 57 1(6)
BROCINER, Max (Compagnie Intercontinantale de Distribution) -- B.2 F.13 to Dautry 50 1(2)
BRODA, E. -- B.1 F.2 to Akers 43 1(2)
BRYNIELSSON, Hany (Aktiebologet Atomenergei) -- B.2 F.13 to Dautry 51 1(1); B.1 F.3 C.E.R.N. memorandum 1953 2p.
CHADWICK, Sir James -- B.1 F.1 memorandum 1942 1p.; B.1 F.2-3 to K 42-49 4(7); from: Egerton 41 1(1); B.1 F.2-3 K 42-49 3(4); May, A.N. 42 1(1)
COCKCROFT, Sir John D. -- B.2 F.12 to: Akers 45 1(1); B.2 F.12 Halban, H., Jr. 40 1(1); B.1 F.2-3 K 44-49 5(5); from: Halban, H., Jr. 41 1(1); B.1 F.3 K 49 1(1); Rapkine 44-45 2(3)
COHEN, Mlle. M. (French Embassy, London) -- B.1 F.3 from K 47 1(1)
COLONNETTI, G. (Consiglio Nazionale della Ricerche, Italy) -- B.2 F.13 to Dautry 50 1(1)
DAUTRY, Raoul -- B.1 F.4 to: Houet 51 1(1); B.1 F.4 K 49-51 9(9); B.1 F.4 & B.2 F.13 Lescop 50-51 13(13); from: Brociner 50 1(1); Brynielsson 51 1(1); Colonnetti 50 1(1); Desbordes 50 1(1); Directeur Général des Douanes 51 1(1); Gravier 51 1(1); Houet, Picard, Dautriche, Jugeau 51 1(4); Joliot-Curie, F. 40 1(6); B.1 F.4 K 50-51 6(12); Lescop 51 1(1); Perrin, F. 51 1(1); Ragey 51 1(1); Vidal 51 1(1)
DELEGATION DE LA FRANCE LIBRE AUX ETATS UNIS -- from Halban, H., Jr. 43 1(1)
DEPARTMENT OF SCIENTIFIC AND INDUSTRIAL RESEARCH (Great Britain) -- B.1 F.2 to K 42-44 2(3); B.1 F.2 from K 44-45 2(2)
DESBORDES, J. -- B.2 F.13 to Dautry 50 1(1)
DICKENS, B. G. -- B.1 F.1 from K 40 1(4)
DIRECTEUR GENERAL DES DOUANES ET DROITS INDIRECTS -- B.2 F.13 to Dautry, 51 1(1)
EGERTON, A.C. (secretary, Royal Society) -- B.1 F.2 to Chadwick 41 1(1)
ERDELEY, L. -- from Guéron 57 1(1)
ERTAUD -- from Perrin, F. 52 1(1)
FENNING, F.W. -- B.1 F.2 to Akers 43 1(2)
FORCES FRANÇAISES LIBRES -- B.1 F.2 from K 43 1(1)
FRANK, Peter -- from Perret 59 1(1)
FRANKLIN, Raymond -- B.1 F.4 to K 50 1(1)
FREUNDLICH, H.F. -- B.1 F.2 to: Akers 43 1(2); B.1 F.2 K 43 1(1); B.1 F.2 from K 43 1(3)
GARDEL, A. (Commaunauté d'Interets pour l'Etude de la Production et de l'Utilisation de l'Energie Nucléaire) -- B.1 F.5 to K 57 1(1); B.1 F.5 from K 57 1(1)
GODARD, Michel -- B.1 F.9 to K 63 2(3)
GOLDSCHMIDT, Bertrand -- B.1 F.9 to K 64-66 5(7); B.1 F.9 from K 64-66 3(6)
GOLDSTEIN, Herbert -- B.1 F.6 to K 60 2(3)
GORDON-MUNRO, R. (Office of the High Commissioner for the United Kingdom, Ottawa) -- B.1 F.2 from K 45 1(1)
GOWING, Margaret M. -- B.1 F.9 to K 64-65 3(3); B.1 F.9 from K 64 1(3)
GRAVIER, Maurice (Maison des Etudiants Suédois) -- B.2 F.13 to Dautry 51 1(1)
GUÉRON, Genviève -- B.2 F.12 to Weill, Mme. A. 45(?) 1(1)
GUÉRON, Jules -- B.1 F.2 to: Akers 43 1(2); B.1 F.6 Erdeley 57 1(2); B.1 F.2 K 43 1(2); B.1 F.5 from: K 56 1(1); Peierson 59 1(1)
GUILLAUMAT -- B.1 F.5 from K 55 1(1)
GUMBEL, E.J. (New School for Social Research) -- B.1 F.2 to K 45 1(1)
HADAMARD, J. -- B.2 F.18 to K 46 1(1)
HALBAN, Hans von, Jr. -- B.1 F.2 To: Akers 43-45 2(4); B.2 F.12 Cockcroft 41 1(1); B.2 F.12 Délégation de la France Libre aux Etats Unis 43 1(1); B.1 F.2 & B.2 F.10 & 12 Joliot-Curie, F. 39-57 3(5); B.1 F.1-2 & B.1 F.9 K 39-55 5(6); B.1 F.2 Peierls 41 1(1); B.2 F.12 Thomson 41 4(6); B.1 F.9 Wigner 55 2(5); B.1 F.2 United Kingdom government 41-42 2(10); from: Cockcroft 40 1(1); Joliot-Curie, F. 40 1(4); B.1 F.2 & B.1 F.9 K 38-55 5(6); Oliphant 41 1(2); Placzek 39 1(5); Thomson 41 3(3); Wigner 54-55 2(4)
HALBAN, Hans von, Sr. -- B.2 F.12 to Adler 39 1(1)
HALLER, P. de -- B.1 F.5 to K 56 1(1)
HAMILTON, Walter -- B.1 F.6 to K 60 2(3); B.1 F.6 from K 59-60 3(5)
HARLÉ, F. -- B.1 F.4 to K 46 1(2)
HATECLOQUE, --de (Ambassadeur de France, Canada) -- B.1 F.2 from K 45 1(1)
HEREWARD, H.G. -- B.1 F.2 to Akers 43 1(2)
HOUET, Roger, René Picard, Pierre Dautriche, René Jugeau -- B.1 F.4 to Dautry 51 2(4)
HOUET, Roger (Union des Ingénieurs et Techniciens Français) -- B.1 F.4 to K 51 2(2); from Dautry 51 1(1)
HOUGH, Paul -- B.1 F.6 to K 60 2(4); B.1 F.6 from K 60 1(1)
HUET, P. -- from: Marchat 59 2(2); Saeland 59 1(3)
JOLIOT-CURIE, Frédéric -- B.2 F.12 to: Dautry 40 1(6); B.2 F.12 Directeur des Affaires Civiles 38 1(3); B.1 F.1 Halban, H., Jr., and K 40 1(4); B.2 F.12 Ingénieur en chef, service D, Direction des Poudres 39 1(2); B.1 F.1-2 & B.1 F.4 K 39-49 6(10); B.2 F.13 Maire de Sceaux 46 1(1); B.2 F.12 Ministrie de Justice 38 1(1); from: Halban, H., Jr. 39-57 3(5); B.1 F.1-2 & B.1 F.4 K 39-50 4(5); Moraud 39 1(1); Président du Conseil des Ministres 48 1(8)
JOLIOT-CURIE, Irène -- Lecture notes on Rutherford, 1947, 8p.
KEMMER, N. -- B.1 F.2 to Akers 43 1(2); B.1 F.2 Perrin, M. 42 1(2)
KEYSER, W.L. de -- B.1 F.5 to K 55-56 2(2); B.1 F.5 from K 56 1(3)
KIPFER, P. -- B.1 F.5 to K 56 1(1)
KREKELER -- B.1 F.5 to K 55 1(1)
LACOSTE, Mme. P. -- B.1 F.9 to K 66 1(1)
LANGLET, Mlle. C. (Chef du secretariat du Haut-Commissaire, C.E.A.) -- B.1 F.4 to K 53 1(1)
LEGETT, M. Bryce (Secretary, Atoms for Peace Awards, Inc.) -- B.1 F.6 to K 56 1(1); B.1 F.6 from K 56 1(1)
LE MEUR -- B.1 F.4 to K 48 1(2)
LESCOP, René -- B.2 F.13 to Dautry 51 1(1); from: Dautry 50-51 13(13); B.1 F.4 K 51 1(1)
LONGAIR, A.K. -- B.1 F.3 from K 46 1(1)
MADDOCK, A.G. -- B.1 F.2 to Akers 43 1(2)
MAIRIE DE GIF-SUR-YVETTE -- B.1 F.5 to K 54 1(1)
MARCHAT, J. -- B.1 F.6 & B.2 F.13 to Huet 59 2(2)
MAY, Alan N. -- B.1 F.2 to: Akers 43 1(2); B.1 F.2 Chadwick 42 1(1); B.1 F.2 Perrin, M. 42 1(2)
MCINTYRE, Hugh C. (Canadian Nuclear Technology) -- B.1 F.9 to K 55 1(2)
MCKINNEY, Robert (U.S. Congress, Joint Committee on Atomic Energy) -- B.1 F.5 to K 60 1(1)
MENKE, John -- B.1 F.6 from K 59 1(1)
MORAUD, Max -- B.2 F.12 to Joliot-Curie, F. 39 1(1)
MOUREU, Henri -- B.1 F.9 Notes on "Bataille de l'Eau Lourde," 1961, 10p.
MINISTRY OF AIRCRAFT PRODUCTION (Great Britain) -- B.1 F.3 to K 46 1(1)
NATIONAL RESEARCH COUNCIL (Canada) -- B.1 F.2 from K 45 1(1)
OLIPHANT, Mark L. -- B.1 F.2 to: Halban, H., Jr. 41 1(2); B.1 F.2 K 42 1(1); B.1 F.2 from K 41-42 2(2)
O'NEILL, J.F. (United Kingdom Payments Office) -- B.1 F.2 to Consul for the United States, Montreal 45 1(1)
PARMOOR, Lady Marian E. -- B.1 F.3 to K 49-50 7(8); B.1 F.3 from K 49-50 2(2)
PEIERLS, Rudolf E. -- B.1 F.2 to K 41-42 4(7); from: Halban, H., Jr. 41 1(1); B.1 F.2 K 41-42 3(4)
PEIERSON, D.E.H. -- B.1 F.6 to Guéron, J. 59 1(1)
PERRET, Roland -- B.1 F.6 to Frank 59 1(1); B.1 F.5-6 K 57-60 25(44); B.1 F.5-6 from: K 58-60 29(46); Shaw, J. 58 2(2)
PERRIN, Francis -- B.2 F.13 to: Ertaud and Yvon 52 1(1); B.2 F.13 Dautry 51 1(1); B.2 F.13 Département de Métallurgie 53(?) 1(1); B.1 F.4-5 K 51-55 10(12); B.2 F.11 Urey 63 1(2); B.2 F.13 Yvon, Horowitz, Taranger, Descans, Robert 54 1(1); B.1 F.4-5 & B.1 F.9 from: K 51-56 21(39); Thomson 64 1(1); Urey 63 1(2); Winter 52 1(1)
PERRIN, Michael -- B.1 F.2 to K 43 1(1); from: Kemmer 42 2(4); B.1 F.2 K 41-42 3(5)
PERROUX, François -- B.1 F.5 to K 58 1(1)
PLACZEK -- B.2 F.12 to Halban, H., Jr. 39 1(5)
POIROT, E. (Ecole Centrale de la T.S.F.) -- B.1 F.4 to K 51 1(1)
PREISWERK, F. -- B.1 F.2 memorandum, 1942, 3p.
PRESIDENT DU CONSEIL DES MINISTRES -- B.2 F.13 to Joliot-Curie, F. 48 1(8)
RAGEY, L. (Conservatoire des Arts et Métiers) -- B.1 F.13 to Dautry 51 1(1); B.1 F.5 from K 54 1(1)
RAPKINE, Louis -- B.1 F.2 to: Cockcroft 44-45 2(3); B.1 F.2 K 44 1(1); from: Akers 46 3(4); B.1 F.2 K 43-45 2(3)
ROBERT -- B.1 F.4 from K 53 1(3)
SAELAND, E. -- B.1 F.6 to Huet 59 1(3)
SCHEINMAN, Lawrence -- B.1 F.9 to K 66 1(1); B.1 F.9 from K 66 1(3)
SHAW, Jenifer C. (O.E.E.C.) -- B.1 F.5 to Perret 58 2(2)
STOHR, J.A. -- B.1 F.4 to K 51 1(1)
SURDIN -- from Ambrosino, G., and H. Piatrer 48 1(1)
THEWLIS, J. (National Research Council, Canada) -- B.1 F.2 to K 45 1(1)
THOMSON, Sir George P. -- B.2 F.12 to Halban, H., Jr. 41 3(3); B.2 F.11 Perrin, F. 64 1(1); from Halban, H., Jr. 41 4(6)
UREY, Harold C. -- B.2 F.11 to Perrin, F. 63 1(2); from Perrin, F. 63 1(2)
VAUCHER, Paul (Mission Universitaire) -- B.1 F.2 to K 44 2(2)
VIDAL, L. (Service Sanitaire) -- B.2 F.13 to Dautry 51 1(1)
WEILL, Mme. A. -- from Guéron, G. 45 1(1)
WIGNER, Eugene P. -- B.1 F.9 to: Halban, H., Jr. 54-55 2(4); B.1 F.9 K 54-55 3(3); from: Halban, H., Jr. 55 2(5); B.1 F.9 K 55 2(7)
WINTER, S.D. -- B.1 F.4 to Perrin, F. 52 1(1)
YVON -- from Perrin, F. 52 2(2)