C-D

CASIMIR, H. B. G. b. 1909, The Hague, Netherlands.

1926-29, U. Leiden, except summer semesters,
1928 and 1929, U. Göttingen.
1929-31, U. Copenhagen, Asst. to N. Bohr, except summer 1930, U. Michigan.
1931-32, U. Leiden: 1931, Dr. phil. with P. Ehrenfest; 1931-32, Asst. to Ehrenfest. 1932, summer, U. Berlin with L. Meitner.
1932-33, Eidgn. Techn. Hochsch. Zurich, Asst. to W. Pauli.
1933-42, U. Leiden, Prof.

Two sessions, 43 pp. transcript.

GOUDSMIT: 9 Apr 29 (63,3); 27 May 29 (63, 4); 4 Dec 29, [late 29], (63,7); 27 Sep 30 (64,5); 9 Jan 31 (65,1).
KRAMERS: 2 letters [1941-46] (11,12).
VAN VLECK: 23 Sep 57 (49,4).

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 12 Aug [29], 18 Jan 30, 6 Sep 30, 24 Jan 31, 20 Mar 32, 7 letters 1945-48, 1 letter [undated]. See: Bohr.
BIBLIOTHEK DER EIDGENÖSSISCHEN TECHNISCHEN HOCHSCHULE, Zurich, Switzerland. Letter to Weyl, 7 May 31.
PAULI COLLECTION, Zurich, Switzerland. Letter to Pauli, [undated]. See: Pauli.
DUKE UNIVERSITY ARCHIVES, Durham, N.C. Letters to London, 4 Nov 32, 6 letters 1936-45. See: London.

CATALÁN, M. A. b. 1894, Zaragoza, Spain; d. 1957, Madrid, Spain.

1916-17, U. Zaragoza and U. Madrid: 1917, U. Madrid, Dr. sci. with A. del Campo.
1917-34, Nat. Inst. Phys. and Chem., Madrid: 1917-30, Physicist; 1930-34, Prof.; except 1920-21, U. London and 1924-25, U. Munich.
1934-52, U. Madrid, Prof.

GOUDSMIT: 22 Mar 26 (60,6).
SHENSTONE: 7 Aug 28 (59,3).
SOMMERFELD: 19 Apr 23, 14 May 23, 5 Jun 23, 12 Apr 39, (30,2).

COCKCROFT, J. D.* b. 1897, Todmorden, Lancashire, England.

1914-15, Manchester U.
1915-18, Milit. Serv.
1919-22, Manchester U.
1922-33, Cambridge U.: 1924-33, Res. Asst. to E. Rutherford; 1928, Ph.D. with Rutherford.
1933-39, U. Cambridge: 1933-35, junior Bursar; 1935-39, Dir., Mond Lab.

One session, 16 pp. transcript.

KRAMERS: 7 letters, 1948-51, (11,12).

Memorandum to Rutherford on "The Probability of Artificial Disintegration by Protons," 1 p., 1928 (66,2).

Unpublished materials held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 8 Jul 30, 2 Oct 30, 14 Jul 31, 32 letters 1936-61. See: Bohr.
RUTHERFORD COLLECTION, Cavendish Laboratory, Cambridge, England. Letters to Rutherford, 12 Aug 32, 22 Jul [3?]. Letters to Walton and Dee, [undated].
DUKE UNIVERSITY ARCHIVES, Durham, N.C. 2 Letters to London, 1935. See: London.

COLBY, W. F. b. 1880, Rockford, Mich., U.S.A.

1901, U. Michigan, A. B.
1902-04, U. Vienna.
1909-14, U. Michigan, Instr.: 1909, Ph.D.
1914-15, Mt. Wilson Observatory, Member Staff.
1915-44, U. Michigan: 1915-19, Asst. Prof.; 1919-44, Prof.
Misc..: 1912-13, U. Munich.

GOUDSMIT: [18 Aug 31] (65,4).
KEMBLE: 9 Dec [23], 21 Feb [25], 8 Sep [25], 14 Dec 25, 13 Jan 27, (51,3).
KRAMERS: 24 Mar [23] (11,12); 6 Jun 24, 10
Oct [25], (8,3); 15 Jan [28], [spring 1928] (9,6).
SOMMERFELD: 1 letter [c. 1929] (30,2).

See: KEMBLE, KRAMERS, SOMMERFELD.

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 17 Jan [23], 3 Feb [23], 19 Feb [23], 19 May [23], 17 Nov [23], 18 Feb [24], 2 letters [1955]. See: Bohr.

COMPTON, A. H.* b. 1892, Wooster, Ohio, U.S.A.; d. 1962, Berkeley, Calif., U.S.A.

1909-13, Wooster Coll.
1913-16, Princeton U.:
1914-15, Instr.; 1916, Ph.D.
1916-17, U. Minnesota, Instr.
1917-19, Westinghouse Lamp Co., Res. Phys.
1919-20, U. Cambridge, Nat. Res. Fel. with Thomson and E. Rutherford.
1920-23, U. Washington, St. Louis, Prof.
1923-45, U. Chicago, Prof.
Misc..: 1926-27, Punjab U., India, Guggenheim Fel. and Spec. Lect.
1931, Lect.: Yale U. and Western Theological Seminary.
1931-34, Carnegie Inst., Res. Assoc.
1934, U. Brussels, Lect.
1934-35: Oxford U., Visiting Prof. and Imperial Coll., London, Lect.
1935, Michigan U., Lect.
1939, Lecturer: U. North Carolina and Boston U.

BOHR: 1 Apr 22 (BSC 1,3).
DIRAC: 21 Aug 26 (59,2).

See: BOHR, SOMMERFELD.

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. 7 Letters to Bohr, 1934-54. See: Bohr.
BURNDY LIBRARY, Norwalk, Conn. Manuscript in Weiner Collection.
OLIN LIBRARY, Washington, University, St. Louis, Mo. All papers in Prof. Compton's possession at the time of his death.
AMERICAN INSTITUTE OF PHYSICS, New York, N.Y. Letters to Gordon Fulcher, 26 Jul 23, 21 Dec 33; to Franklin Miller, 21 Apr 58.

COMPTON, K. T. b. 1887, Wooster, Ohio, U.S.A.; d. 1954, New York, N.Y., U.S.A.

1904-09, Wooster Coll., Ohio: 1907-09, Instr.
1909-10, U. Michigan.
1910-13, Princeton U., Teaching Fel.: 1912, Ph.D.
1913-15, Reed Coll., Oregon, Instr.
1915-30, Princeton U.: 1915-19, Asst. Prof.; 191930, Prof.
1930-48, Mass. Inst. Techn., Pres.
Misc..: 1926, U. Göttingen.
Summers: U. Michigan, Cornell U., Columbia U., Chicago, U. California.

GOUDSMIT: 22 Jan 29 (63,1).
KEMBLE: 4 Mar 26, 27 May , 26, (51,3).

See: BOHR, GOUDSMIT, KEMBLE, SOMMERFELD.

Unpublished material held elsewhere

BIBLIOTHEK DER EIDGENÖSSISCHEN TECHNISCHEN HOCHSCHULE, Zurich, Switzerland. Letter to Weyl, 10 Jan 31.
MASSACHUSETTS INSTITUTE OF TECHNOLOGY, Cambridge, Mass. Correspondence and papers in Institute Archives and in office of the the Vice-President.
PALMER PHYSICAL LABORATORY, Princeton University, Princeton, N.J. Many folders of papers in the Departmental office.
AMERICAN INSTITUTE OF PHYSICS, New York,
N.Y. Letter to Duane, 25 May 33.

E.U. Condon

CONDON, E. U.* b. 1902, Alamogordo, N.M.,U.S.A.

1921-26, U. California, Berkeley: 1926, Ph.D. with R. T. Birge.
1926-27, Intl. Educ. Board Fel.: U. Munich, then U. Göttingen, with M. Born.
1928, Spring, Columbia U., Lect.
1928-29, Princeton U., Asst. Prof.
1929-30, U. Minnesota, Prof.
1930-37, Princeton U., Assoc. Prof.
1937-45, Westinghouse Research Labs., East Pittsburgh, Pa., Assoc. Dir.

KEMBLE: 20 Apr 37, (53,7).
SOMMERFELD: 4 May 32, (30,2).

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 3 Oct 33, 20 Apr 37.
LIBRARY OF CONGRESS, Washington, D.C. Correspondence with Veblen, 1930.

COSTER, DIRK. b. 1889, Amsterdam, Netherlands; d. 1950, Groningen, Netherlands.

1913-16, U. Leiden.
1916-19, Techn. Hogesch. Delft.
1919-20, U. Copenhagen.
1920-22, U. Lund with M. Siegbahn.
1922, U. Leiden, Dr. phil. with P. Ehrenfest.
1922-23, U. Copenhagen.
1923-24, Teyler's Foundation, Haarlem, Conservator.
1924-50, U. Groningen, Prof.

BOHR: 11 Jul 20, 11 Jan 21, 15 Jan 22, 28 May 22, 15 Jul 22, 16 Jul 22, 28 Jul 22, 3 Aug 22, (BSC 1,4).
GOUDSMIT: 1 1 Jan 25, 26 Jan 25, 3 Feb 25, 23 Mar 25, (60,4); 5 Jun 26 (60,7); 14 Jun 26, 17 Jun 26, 20 Jun 26, (60,7); 2 Jul 26 (60,8); 5 Jan 27 (61,1); 18 Jun 27 (61,4).
KRAMERS: 26 May 16 (8,4); 22 Nov 19 (9,7); 31 Jan 20, 7 Mar 20, 11 May 20, 27 May 20, 12 Jun [20], 18 Jun 20, 8 Jul 20, 7 Sep 20, 21 [Mar] 21, 13 Sep 21, 23 Nov [21], 27 Oct 21, 15 Nov 21, 16 Mar 22, 19 Mar 22, 6 Apr 22, 8 May 22, 9 May 22, 9 Jun 22, 3 Aug 22, 2 Sep 22, 28 Aug 23, 4 Nov 23, 21 Dec 23, [?] Feb 24, 19 Feb 24, 10 Mar 24, 25 Oct 24, 26 Oct 24, 15 Nov 24, 7 Dec 24, 1 Jan 25, 7 Mar 25, 13 Dec 25, 2 letters [undated], (8,4) 2 Oct 33, 24 Sep 35, 6 letters 1938-39, (9,7) 18 letters 1940-50 (11,14).
RUBINOWICZ: 20 Aug 20 (17,B).
SOMMERFELD: 23 May 21 (30,3).

See: BOHR, DE HEVESY, KRAMERs, ROSSELAND, SOMMFRFELD.

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 2 Jan 23, 1 Aug [23], 8 Aug 23, 7 Dec 24, 8 Jan 29, 3 Sep 30, 15 Sep 30, 11 Mar 35, 11 Nov 49. See: Bohr.

COURANT, RICHARD.* b. 1888, Lublinitz, Germany.

1907-09, U. Breslau, then 1909, U. Zurich.
1909-14, U. Gbttingen: 1910, Dr. phil. with D. Hilbert; 1910-12, Asst. to Hilbert; 1912-14, Priv.-Doz.
1914-19, Milit. Serv.
1919-20, U. Münster, o. Prof.
1921-33, U. Göttingen, Prof. and Dir., Math. Inst. 1933-.34, U. Cambridge, Visiting Lect. 1934-58, New York U.: 1934-36, Visiting Prof.;
1936-58, Prof. and Dir., Inst. Math. Sciences.
Misc..: 1932, Visiting Prof.: Princeton U. and U. California.

One session, 16 pp. transcript.

BOHR: 26 Mar 22, 8 Apr 22, 9 May 22, 20 Jul 22, 8 Dec 22, (BSC 1, 4).
GERLACH: 22 Jun 21 (19, 2).
KRAMERS: 11 letters 1948-50 (11,12).

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 24 Apr 26, 15 Feb 29, 18 letters 1946-62. See: Bohr.
LIBRARY OF THE SWEDISH ACADEMY, Stockholm,
Sweden. Letters to Oseen, 15 Dec 27, 16 Jan 28.
BIBLIOTHEK DER EIDGENÖSSISCHEN TECHNISCHEN HOCHSCHULE, Zurich, Switzerland. Letters to J. M. Thomas, 21 March 41; to Weyl, 30 Dec 24, 30 Nov 25, 19 Feb 26, 14 Jun 26, 28 Jun 26, 23 Jul 26, 21 Jan 30, 23 Feb 30, 5 Mar 30, 26 Mar 30, 28 Mar 30, 13 Jun 30, 26 Jan 33, 31 Oct 33, 12 Jan 34, 19 Jan 34, 8 Feb 34, 18 Mar 34, 22 Apr 34, 31 May 34, 6 Jun 34, 4 Dec 34, [1935], 15 Fib 35, 21 Mar 35, 6 Apr 35, 2 May [35], 4 Jun 35, 7 Oct 35, 4 Nov 35, 16 Nov 35, 60 letters 1936-49. See: Weyl.
LIBRARY OF CONGRESS, Washington, D.C. Correspondence with Veblen, 1923-48.

Other information

Professor Courant has said that he possesses much correspondence and many old papers.

DARWIN, C. G.* b. 1887, Cambridge, England; d. 1963, Cambridge, England.

1906-10, U. Cambridge.
1910-14, U. Manchester, Lect.
1913, U. Cambridge, M.A.
1914-19, Milit. Serv.
1919-22, U. Cambridge, Lect.
1923-36, U. Edinburgh, Prof.
1936-43, U. Cambridge, Master, Christ's Coll. 1938-49, Nat. Phys. Lab., Middlesex, Dir.
Misc.: 1922, Visiting Prof.: Calif. Inst. Techn. and U. California, Berkeley.

BOHR: 15 Oct 13, 19 Oct 13, 30 May 19, 20 Jul 19, (BSC 1,4).
DIRAC: [1924], 19 Jan 25, (36,7).
GOUDSMIT: 24 Apr 29 (63, 3); c. 1 Sep 31 (65,5).
KEMBLE: 27 Jan 24 (51,4).
KRONIG: 3 May 29, 10 May 29 (16,2).
VAN VLECK: 27 Feb 27, 7 Nov [30], 9 Sep 37, (49,4).

See: BOHR, BORN, FRENKEL, GOUDSMIT, KEMBLE, KLEII-T, MOSELEY, SCHRÖDINGER, VAN VLECK.

Manuscripts of Darwin's Smith's Prize Essay, "On a Theory of the Cause of Magnetic Storms," 30 pp., Jan 1911 (36,2).
Typescript, "The Theory of Radiation," 55 pp., Aug 1912 (36,2).
Manuscript draft of a critique of the foundations of physics, 7 pp., July 1919 (36,3).
Manuscript of a translation by Darwin of H. Poincaré's "On the Theory of Quanta," (J. de Phys. 2 (1912): p. 1], 24 pp. plus 4 pp. of notes, [Oct 1919] (36,2).
Notes on atom mechanics, 45 pp., Apr, Sep, Oct 1919 (36,3).
Typescript, "The Wave Theory and the Quantum Theory," 8 pp., [cf. Nature 1923], (36,4).
Programatic notes on current difficulties with wave equations and statistics, 3 pp., 19 Nov 28 (36,5).
Reference notes, "Evaluation of the Dispersion Formula by Methods like Schrödinger's," 28 pp., Jan 34 (36,5).
Numerical values for Planck's radiation formula, 1 sheet, (undated] (36,4)
Notes on "The Green Method for Electromagnetic Equations, Etc.," 4 pp, [undated] (36, 4).
Notes on symmetry groups, 3 sheets, (undated] (36, 4).
See: van Leeuwen.

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 30 Apr [1923?], 17 Feb [24), 16 Mar [24], [Jul 26], [Jul 26], 19 Nov (26], 8 Feb [27], 28 Jun [27], [1927], 6 Oct [27], 26 Dec [27], 31 Mar [28], 25 Jun 28, 24 Oct [28], 25 Mar [29], 24 Apr [29], 18 Mar [30], 10 Nov [30], 13 Dec [30], 13 Jul [31], 23 Feb [32], 22 Mar [32], 28 Apr [32], 30 Jul 35, 4 letters 1943[45]. See: BOHR.
RUTHERFORD COLLECTION, Cavendish Laboratory, Cambridge, England. Letters to Rutherford, 26 Oct 17, 13 May 19, 12 Oct [??].
ROYAL SOCIETY LIBRARY, London, England. 5 letters, 1910-13.
PAULI COLLECTION, Zurich, Switzerland. Letters to Pauli, 20 Nov 27, 12 Jan 28.
DUKE UNIVERSITY ARCHIVES, Durham, N.C. Letter to London, 28 Mar 35. See: London.

DAVISSON, C. J.* b. 1881, Bloomington, Ill., U.S.A; d. 1958, Charlottesville, Va., U.S.A.

1902-03, U. Chicago.
1903, Worked with telephone co., Bloomington.
1904-05, Purdue U., Asst., then 1905, Summer, U. Chicago.
1905-11, Princeton U.: 1905-10, Instr.; 1911, Ph.D. with O. W. Richardson.
1911-17, Carnegie Inst. Techn., Instr.
1917-25, Western Electric Co., Res. Physicist.
1925-46, Bell Telephone Lab., New York, Res. Physicist.
Misc.: 1913, U. Cambridge, Research with J. J. Thomson.

Memoirs of the discovery of electron diffraction, 8 pp., by L. H. Germer, Mar 1962 (66,9).

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letter to Bohr, 28 Dec 37.
SMITHSONIAN INSTITUTION, Washington, D.C. Tape recording of reminiscences.
BELL TELEPHONE LABORATORIES, Murray Hill, N.J. Misc. source materials.

DEBYE, PETER.* b. 1894, Maastricht, Netherlands.

1901-06, Techn. Hochsch. Aachen: 1905, Dipl. Electrical Engin.; 1905-06, Asst. to A. Sommerfeld.
1906-11, U. Munich, Asst. to Sommerfeld: 1908, Dr. phil. with Sommerfeld; 1910-11, Priv.-Doz.
1911-12, U. Zurich, a. o. Prof.
1912-13, U. Utrecht, Prof.
1913-20, U. Göttingen, o. Prof.
1920-27, Eidgn. Techn. Hochsch. Zurich, Prof. 1927-34, U. Leipzig, Prof.
1934-40, U. Berlin, Prof.
Misc.: 1925, Various universities in the U.S.A.

Three sessions, 65 pp. transcript.

BOHR: 30 May 11, 6 Jun 18, 25 Jul 18, (BSC 1,4).
HEISENBERG: 10 Nov 34, 17 Mar 35, 20 May 37, (45,1).
KRAMERS: 27 Jul 38 (9,8.2).
SCHRÖDINGER: 9 Jul 32 (37,4).
SOMMERFELD: 2 letters 1936-39 (30,4).
VAN VLECK: 19 Apr 27 (49,4).

Lecture course on quantum theory, 313 pp., Göttingen, 1914-15 (24,1).
Lecture course on quantum theory, 146 pp., Göttingen, 1915-16 (24,2).
Lecture course, "Neuere Ergebnisse der Quantentheorie," 77 pp., Göttingen, 1917-18 (24,3).
"Calculations on the Mobility of a Liquid Drop through another Liquid made in Connection with an Examination of L. Pauling's Theory of Electrolytes," 6 sheets, [1925] (73,3).
See: Pauling.

Unpublished material held elsewhere

RUTHERFORD COLLECTION, Cavendish Laboratory, Cambridge, England. Letters to Rutherford, 6 Feb 26, 7 Aug 31.
MATHEMATISCHES INSTITUT, University of Göttingen, Germany [BRD]. Ausarbeitungen of lectures, "Kinetische Theorie der dielektrischen Erscheinungen," summer, 1915; "Thermodynainik," winter, 1915-16.
LIBRARY OF THE SWEDISH ACADEMY, Stockholm, Sweden. Letters to Oseen, 22 Aug 29, 20 Dec 29.
EINSTEIN COLLECTION, Princeton, N.J. Correspondence with Einstein, 7 items 1918-22.
DEPARTMENT OF CHEMISTRY, Cornell University, Ithaca, N.Y. Tape recording and transcript of interview with D. L. Carson, Edwin Salpeter, and S. H. Bauer. Originals in the possession of Prof. Bauer. Edited transcript published in Science 145 (1964): pp. 554-559.
DUKE UNIVERSITY ARCHIVES, Durham, N.C. Letters to London, 23 Apr 28, 4 May 28, 9 Jun 28, 12 Jun 28, 27 Jun 28, 10 Jul 28, 2 letters 28 May 30. See: London.

DELBRÜCK, MAX. b. 1906, Berlin, Germany. 1924-26, U. Tübingen, U. Bonn, U. Berlin.

c. 1926-30, U. Göttingen: 1930, Dr. phil. with M. Born.
1929-30, U. Bristol, Fellow.
1931-32, Rockefeller Found. Fel.: U. Copenhagen and U. Zurich.
1932-37, Kaiser Wilhelm Inst. Chem., Berlin-Dahlem, Asst.
1937-39, Calif. Inst. Techn., Rockefeller Found. Fel.

KRAMERS: 30 Oct 36 (8,3).
MØLLER: [Oct-Nov 31] (59,4).

Unpublished materials held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 28 Jun 32, 28 Jul [32], 5 Dec 32, 30 Nov 34, 5 Apr 35, 7 Oct 35, 6 Nov [35], 13 Dec 35, 34 letters 1936-62. See: Bohr.

DENNISON, D. M.* b. 1900, Oberlin, Ohio, U.S.A.

1917-21, Swarthmore Coll.
1921-24, U. Michigan: 1924, Ph.D. with O. Klein and W. F. Colby.
1924-27, Intl. Educ. Board Fel.: U. Zurich, U. Munich, U. Copenhagen, U. Cambridge, and U. Leiden.
1927 to date, U. Michigan: 1927-28, Instr.; 1928-30, Asst. Prof.; 1930-35, Assoc. Prof.; 1935 to date, Prof.

Three sessions, 64 pp. transcript.

SCHRÖDINGER: 13 Jul 26 (41,7).
VAN VLECK: 21 Jul 26, 1 Feb 38, (49,4).

See: BOHR, EHRENFEST, R. H. FOWLER, KEMBLE, KRAMERS, RANDALL, KLEIN, SCHRÖDINGER.

"Vibrations of C0₂ Molecule," 3 pp., [c. 1928] (49,4).

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 18 Feb 24, 29 May 24, 22 Aug 24, 15 Jun 26, 2 Jun 27, 14 Jun 27, 10 Jan 61. See: Bohr.

DIEKE, G. H.* b. 1901, Rheda, Westphalia, Germany.

1921-25, U. Leiden: 1925, Dr. nat. phil. with P. Ehrenfest.
1925-26, U. California, Berkley: 1926, Ph.D.
1926-27, Calif. Inst. Techn., Nat. Res. Fel.
1927-28, Inst. Phys. and Chem. Res., Tokyo, Res. Assoc.
1928-30, U. Groningen, Conservator and Priv.-Doz.
1930-39, Johns Hopkins U.: 1930-31 Assoc.; 1931-39, Assoc. Prof.

GOUDSMIT: 16 Jul 23 (60,1); 23 May 25, 10 Jun 25, (60,4); 15 Jul [25], 15 Aug 25, 26 Sep 25, 28 Dec 25, (60,5); 26 Jan 26 (60,6); 20 Jan 27 (61,1); 24 Jun 27 (61,4); 28 Nov 27 (61,7); 4 Mar 29 (63,2); 5 May 29 (63,4); 7 Jun 29 (63,5) 15 Feb 30 (64,2); 27 Mar 30, 15 Apr 30, (64,3) 4 Jan 31 (65,1).
KEMBLE: 20 Sep 25, 31 May 26, (51,4).
KRAMERS: 6 letters 1938-39 (9,8.4).
VAN VLECK: 9 Oct 25, 1 May 26, (49,4).

See: EHRENFEST, KEMBLE, VAN VLECK.

Unpublished material held elsewhere

DUKE UNIVERSITY ARCHIVES, Durham, N.C. 3 Letters to London, 1938-39. See: London.

DIRAC, P. A. M.* b. 1902, Bristol, England.

1918-23, U. Bristol.
1923-26, U. Cambridge, 1851 Exhibition Scholar:
1926, Ph.D. with R. H. Fowler.
1926-27, 1851 Exhibition Scholar: U. Copenhagen, then U. Göttingen.
1927-to date, U. Cambridge: 1927-32, Fel.; 1932-to date, Prof.
Misc..: 1929, U. Michigan and U. Wisconsin.
1930-31, Princeton U., Visiting Lect. 1934-35, Inst. Adv. Study, Princeton.

Five sessions, 115 pp. transcript.

BOHR: 26 Nov 29 (9,5).
JORDAN: 24 Dec 26, 23 Jan 28, (18,1).
SCHRÖDINGER: Nov 33 (43,4); 2 letters 1941-52 (37,4).
VAN VLECK: 6 Dec 28, 9 Jun 29, 24 Apr 31, 1 Jun 31, 8 Jul 31, 18 Jul 31, 10 Sep 31, 2 Oct 31, 8 Nov 33, 22 Jul 34, 20 Sep 34, 30 Oct 34, 13 Feb 35, 22 Feb 35, 14 Oct 35, (49,5).

See: BOHR, A. H. COMPTON, DARWIN, EHRENFEST, FERMI, HEISENBERG, GORDON, JORDAN, KLEIN, KUDAR, VAN VLECK.

Manuscript notes for a talk on relativity, 6 pp., [19241 (36,6).
Manuscript draft, "The Validity of Liouville's Theorem in all Frames of Reference," 3 sheets, [1924] (36,6).
Two manuscript drafts, "The Correspondence Principle for Integrable Non-Periodic systems," 2 sheets, [1924] (36,6).
Manuscript draft treating adiabatic invariance of the quantum integrals, 2 pp., [late 1924] (36,6).
Rough calculations with action-angle variables, 21 sheets, [1924] (36,7).
Rough notes and manuscript draft concerning proof that the quantization of a degenerate system is independent of the coordinates, 18 sheets, [Winter 1924-25] (36,7).
Manuscript draft of a critical presentation of Einstein-Bose Statistical Mechanics, with notice of de Broglie's work, 11 sheets, [mid 1925] (36,9).
Manuscript notes, "Radiation from a Moving Planck Oscillator," 2 pp., [1925] (36,9).
Manuscript treating virtual oscillators according to the new quantum mechanics. 2 pp., [1925] (36,9).
Manuscript draft, "Heisenberg's Quantum Mechanics and the Principle of Relativity," 5 pp., Oct 1925 (36,9).
"Quantum Mechanics," unpublished Ph.D. dissertation, 140 pp., May 1926 (77).
Manuscript draft for talk at 1927 Solvay Congress, 6 pp., (36,10).-
Notes for Dirac's first lecture course on quantum mechanics, 115 pp., [Oct 1927?] (36,11).
Manuscript notes on q-numbers, 2 sheets, [late 1920s] (36,10).
Manuscript draft of an exposition of quantum mechanics, 6 pp., [late 1920s] (36,10).
Manuscript notes for a critical presentation of Heisenberg-Pauli [cf. "Zur Quantendynamik der Wellenfelder," Zs. f. Phys. 56 (1929) ], 8 pp., (36, 12).
Manuscript draft, "Theory of the Positron," 11 pp., [1934] (36,12).
See: R. H. Fowler.

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 19 Feb 2 18 Jan 28, 26 Nov 29, 9 Dec 29, 30 Nov 30, 23 Mar 32, 6 May 32, 10 Aug 33, 20 Aug 33, 10 Nov 33, 28 Nov 33, 20 Dec 33, 4 Jul 35,,5 letters 1936-43; to Rosenfeld, 6 May 32. Typescript of first edition of Dirac's Principles of Quantum Mechanics.
See: Bohr.
PAULI COLLECTION, Zurich Switzerland. See: Pauli.
LIBRARY OF CONGRESS, Washington, D.C. Correspondence with Veblen, 1929-48.

DORGELO, H. B. b. 1894, Dedemsvaart, Netherlands; d. 1961.

1913-18, Milit. Serv.
1918-24, U. Utrecht: 1920-22, Asst. to L. S. Ornstein; 1924, Dr. wis.-en natuurkunde with Ornstein.
1920-24, Secondary school teacher, Utrecht.
1924-27, N. V. Philips Electric Co., Eindhoven, Res. Asst.
1927-to date, Techn. Hogesch. Delft, Prof.

GOUDSMIT: 20 Sep 24, 1 Oct 24, (60,3); 9 Mar 25, 20 Mar 25, (60,4); 23 Sep 25 (60,5); 31 Mar 26 (60,6); 2 Nov 26, 17 Dec 26, (60,9); 4 Jan 27, 8 Jan 27, 10 Jan 27, (61,1); 22 Jul 27 (61,5); 1 Sep 31, 11 Sep 31, 12 Oct 31, 6 Nov 31, (65,5).
KRAMERS: 23 Aug 44 (11,15).
KRONIG: 21 May 25, 1 Sep 25, 21 Sep 25 (16,3).

DUANE, WILLLAM* b. 1872, Philadelphia, Pa. U.S.A.; d. 1935, Devon, Pa., U.S.A.

1888-92, U. Pennsylvania.
1892-95, Harvard U.: 1893-95, Asst. to J. Trowbridge.
1895, U. Göttingen, Tyndall Fel. 1895-97, U. Berlin: 1897, Dr. phil. with M. Planck. 1898-1907, U. Colorado, Prof. 1907-12, U. Paris, Curie Lab. 1913-35, Harvard U.: 1913-17, Asst. Prof.; 1917-34,.Prof.; 1934-35, Prof. Emer.

SOMMERFELD: 6 Mar 24 (30,6).

Unpublished material held elsewhere

BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 5 Mar 24, 4 Apr 24. See: Bohr.
AMERICAN INSTITUTE OF PHYSICS, New York, N.Y. See: K. T. Compton, Planck, Rutherford, J. J. Thomson.