N-O

Spectroscopic data for HC1 with use of half quantum numbers, 24 sheets, unpublished, [1923] (73,1).
Typescript on physical properties of gases intended for the Internl. Critical Tables, 50 pp., [1924] (73,2).
Miscellaneous notes on crystal structure, selective reflection of X-rays, gamma ray spectra, 30 sheets, [c. 1924] (73,13).
Calculations made under the direction of Debye on the mobility of a liquid drop through another liquid, 83 sheets, not published, [Pasadena 1925] (73,3-4).
Notes preparatory to L. Pauling and R. C. Tolman, "The Entropy of Supercooled Liquids at Absolute Zero," J. Amer. Chem. Soc. 47 (1925); p. 2148, 80 sheets, [1925] (73,5-6).
Notes on A. Einstein, "Schallausbreitung in teilweise dissoziierten Gasen," Sitzb. preuss. Akad. Wiss. (1920), 23 pp., [1925] (73,12).
Notes on papers by Born on ionic volumes and heats of hydration, Zs. f. Phys. 1 (1920): p. 45, and on the electrical nature of chemical forces, Zs. f. Electrochemie 30 (1924): p. 382, 16 pp., 1925 (76,1).
Miscellaneous notes on dwarf stars and Bernoulli numbers, 30 sheets, [c. 1925] (73,7).
Notes on the dependence of ion formation on the ionization potential, 12 pp., [c. 1925] (76,1).
Various notes and drafts relating to the quantum theory of dielectric constants, including notes on papers by Pauli, Hettner, Alexandrow, and O. Klein, 95 sheets, 1925-26 (76,2).
Notes on paramagnetism and its connection with molecular symmetry, 25 sheets, May and Aug 1926 (74,1).
Unpublished typescript draft, "Die Bewegung zweiatomiger Dipolmoleküle in gekreuzten magnetischen und elektrischen Feldern und der Einfluss eines Magnetfeldes auf die Dielektrizititskonstante eines zweiatomigen Dipolgases," 16 pp., Munich, June 1926 (74,12).
Notes on the spinning electron, 9 pp., [1926] (74,2).
Notes on various elementary applications of wave mechanics, 13 sheets, Aug 1926 (74,2).
Notes on the calculation of molecular orbitals using square-well potentials, 22 pp., [1926] (74,3).
Notes and graphs of hydrogen-like wave functions with application to NaCl, 14 sheets, Oct 1926 (74,4).
Wave mechanical calculations on the symmetrical top, 25 sheets, Oct and Jul 1926 (74,5.1 & .3).
Notes on the Burger-Dorgelo sum rules and their application to band spectra, 9 pp., [1926] (74,9).
Numerical calculations on screening constants, 13 pp., [1926] (74,11.5).
Notes on association of complex molecules due to opposite alignment of their dipole moments, 7 pp., [1926-27] (74,11.1).
Notes on the polarizability of ions, ionic radii, etc., 71 sheets, [1926-27] (74,6-8).
Notes on the general problem of averaging rs for hydrogen like orbits, 6 pp., [1926-27] (74,11.4).
Notes on the eigenvalues etc., of the two-fold harmonic oscillator, oscillator with pole, error curve oscillator, 11 pp., Copenhagen, 6 May 27 (74,11.2).
Notes on He, H, and two helium atoms, including a few lines by Heitler, 74 pp., Zurich, June and July 1927 (74,13).
Notes on the hyperfine structure of bismuth, headed "Data from Back, Tübingen, May 8, 1927," followed by calculations of coupling schemes, 12 pp., [Copenhagen 1927] (74,10).
Notes on various electron-electron and electro-nucleus coupling schemes, 48 pp., [Copenhagen 1927] (74,10).
Notes on the interpretation of the eigenfunctions of the hydrogen molecule, 12 pp., [1927] (11,3).
Notes on the penetration of non-penetrating orbits according to wave mechanics, 10 pp., [c. 1927] (74,14).
Notes for lecture course, "Introduction to Wave Mechanics, with Chemical Applications," c. 250 pp., Calif. Inst. Techn., 1927-28 (76,3-10).
Notes on papers of Heitler and London. Hybridization, 34 pp., [1928] (73,8).
Notes on L. H. Thomas' calculation of atomic fields, Proc. Camb. Phil. Soc. 23 (1927): p. 542, 12 pp., [c. 1928] (73,9).
Notes for lecture course, "Practicum in Wave Mechanics," to accompany Sommerfeld's lectures, 14 pp., Calif. Inst. Techn., 1928-29 (76,11).
Notes relating to "Photo-ionization in Liquids and Crystals and the Dependence of the Frequency of X-ray Absorption Edges on Chemical Constitution," Phys. Rev. 34 (1929): p. 954, 34 sheets, [1929] (73,14).
Draft of a semi-technical article, "Magnetic Susceptibility and Chemical Combination," 21 pp., [c. 1929] (73,15).
Notes on Einstein's and Bose's 1924-25 papers on Bose-Einstein statistics, 29 sheets, [undated] (73,10).
Notes on M. Born's "Das Adiabatenprinzip in der Quantenmechanik," Zs. f. Phys. 40 (1926), and "Zur Theorie des Kernzerfalls," Zs. f. Phys. 58 (1929), 16 pp., [undated] (73,11).
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. 7 letters to Bohr, 1938-57. See: Bohr.
LIBRARY OF CONGRESS, Washington, D.C. Correspondence with Veblen, 1957-58.

PEIERLS, RUDOLF.* b. 1907, Berlin, Germany.
1925-26, U. Berlin.
1926-28, U. Munich.
1928-29, U. Leipzig: 1929, Dr. phil. with W. Pauli.
1929-32, Eidgn. Techn. Hochsch. Zurich, Asst. to Pauli.
1932-33, Rockefeller Found. Fel., U. Rome with E. Fermi, then U. Cambridge with P. A. M. Dirac.
1933-35, U. Manchester, Hon. Res. Fel.
1935-37, U. Cambridge, Asst., Mond Lab.
1937-41, U. Birmingham, Prof.
Interviews
Two sessions, 51 pp. transcript.
Letters to
KRAMERS: 5 May 39 (10,10); 5 letters, 1948-53 (13,9).
PAULI: 17 Jul 33 (45,2).
Letters from
See: KRAMIERS.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. 28 letters to Bohr, 1938-61. See: Bohr.
DUKE UNIVERSITY ARCHIVES, Durham, N.C. Letter to London, 8 Jun 34.

PERRIN, JEAN. b. 1870, Lille, France; d. 1942, New York, N.Y., U.S.A.
1891-97, École Norm. Sup., Paris: 1894-97, Asst.;
1897, Dr. ès sci.
1897-1914, U. Paris: 1898-1910, Chargé de Cours; 1910-14, Prof. titulaire.
1914-18, Milit. Serv.
1918-40, U. Paris, Prof. and Dir., Phys. Chem. Lab.
Misc.: 1913, Columbia U., Exchange Prof.
Interviews
One session with Perrin's son, Francis Perrin, 8 pp. transcript.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, Dec 26, [1934], 19 Nov 36. See: Bohr.
RUTHERFORD COLLECTION, Cavendish Laboratory, Cambridge, England. Letters to Rutherford, 12 Apr 32, 2 letters [undated].
ROYAL SOCIETY LIBRARY, London, England. 1 letter, 1918.
DEUTSCHE STAATSBIBLIOTHEK, Berlin. Material at present held at the Westdeutschen Bibliothek, Marburg/Lahn, Germany [BRD]. Letter to Darmstaedter, 1910. (Darmstaedter Coll., Fle* 1895).
EINSTEIN COLLECTION, Princeton, N.J. Correspondence with Einstein, 3 items 1919.

Max Planck at 80, 1938
PLANCK, MAX.*b. 1858, Kiel, Germany; d. 1947, Göttingen, Germany.
1874-85, U. Munich: 1879, Dr. phil.; 1880-85, Priv.-Doz., except 1877-78, U. Berlin.
1885-89, U. Kiel, a. o. Prof.
1889-1947, U. Berlin: 1889-92, a. o. Prof.; 1892-1928, o. Prof., 1928-47, Prof. Emer.
Letters to
BOHR: 4 Dec 19, 30 Mar 20, 11 Apr 20, 21 Apr 20, 7 May 20, 23 Oct 21, 30 Oct 21, (BSC 5,5).
GERLACH: 14 Nov 28 (19,7).
JORDAN: 12 Jul 29 (18,6).
LANDÉ: 3 Feb 26 (4,19).
SCHRÖDINGER: Nov 33 (43,4).
SOMMERFELD: 11 Sep 99, 2 letters 1946-47, (33,3).
WOOD: 7 Oct 31 (66,5).
Letters from
See: BOHR, BERLINER, SCHRÖDINGER.
Manuscripts
Recollections by Gabrielle Rabel of Planck's lectures in the late 'teens, 9 pp. (66,13).
Unpublished material held elsewhere
RUTHERFORD COLLECTION, Cavendish Laboratory, Cambridge, England. Letters to Rutherford, 10 Nov 29, 23 Nov 29, 20 Jun 32.
BEDFORD COLLEGE LIBRARY, University of London, London, England. Letters to W. Wilson, 1 Jul 13. 9 letters 1936-47.
DEUTSCHE STAATSBIBLIOTHEK, Berlin, Germany [DDR]. 12 letters to A. von Harnack, 1914-30. (Nachlass Harnack). Letter to Vahlen, 1904. (Nachlass Vahlen).
SÄCHSISCHE LANDESBIBLIOTHEK, Dresden, Germany [DDR]. Letters from the Nachlass of Oberkirchenrat D. Neuberg, 15 Jan 30, 38 letters 193847; to Neuberg from an anonymous Munich physicist, 1940.
DEUTSCHE STAATSBIBLIOTHEK, Berlin. Material at present held at the Westdeutschen Bibliothek, Marburg/Lahn, Germany [BRD]. 5 letters to Darmstaedter, 1901-26; to Hermann Diels, 1913; to E. Fischer, 1907; 2 to Geitel, 1905; to Max Hirsch, 1922; letter to Kayser, 7 Dec 94; 3 to L. Königsberger, 1895-1902; 2 to Scheel, 1 Aug 17; to Valentin, 1920; to Waldeyer, 1914; 3 to Wiedemann, 1905-19; to d. Chem. Gesell. Berlin, 1908; 3 to Kultusministerium, 1899-95. (Darmstaedter Collection Fld* 1883). See: Bohr.
BAYIERISCHE STAATSBIBLIOTHEK, Munich, Germany [BRD]. 2 letters 1933-40. (Schwartziana II A). Glückwünsche zum 50 Dr.-Jubilaum, 1923. (Amiraiana VII).
DEUTSCHES MUSEUM, Munich, Germany [BRD]. 3 letters to L. Graetz, 1887-97; 2 to H. Hertz, 1890; 1 letter 1903; 3 letters to von Laue, 1909-10; to Nernst, 23 Jun 22. See: Lummer, E. Pringsheim.
RIJKSMUSEUM VOOR DE GESCHIEDENIS DER NATUURWETENSCHAPPEN, Leiden, The Netherlands. About 20 letters to Ehrenfest, 1914-33; 1 to Kamerlingh-Onnes, 1915. See: Ehrenfest.
LIBRARY OF THE SWEDISH ACADEMY, Stockholm, Sweden. Letters to Oseen, 14 Aug 14, 31 Mar 15.
UNIVERSITETSBIBLIOTEKET, Uppsala, Sweden, Letter to O. A. Danielsson, 1926; to H. Ebert, 1910; to Heldebrandsson, 1917.
BIBLIOTHEK DER EIDGENÖSSISCHEN TECHNISCHEN HOCHSCHULE, Zurich, Switzerland. Letter to Weyl, 29 Jun 18.
BURNDY LIBRARY, Norwalk, Conn. Manuscript in Weiner Collection.
EINSTEIN COLLECTION, Princeton, N.J. Correspondence with Einstein, c. 45 items 1907-48.
AMERICAN INSTITUTE OF PHYSICS, New York, N.Y. Letters to Duane, 1898 and 1908; to Silberstein, 30 Dec 92; to Wood, 5 Dec 04, 7 Oct 31. (The 1904 letter is incomplete and its authorship is not quite certain.)
Other information
According to Planck's literary executor, Frau Dr. Nelly Planck, all his papers were destroyed in an air raid during the last war. A number of his university notebooks have been preserved, however, and are housed at the Physikalische Geseltschaft in Berlin [DDR].

POHL, ROBERT.* b. 1884, Hamburg, Germany.
1903-04, U. Heidelberg.
1904-16, U. Berlin: 1906, Dr. phil. with E. Warburg; 1906-11, Asst.; 1911-16, Priv.-Doz.
1916-18, Milit. Serv.
1917-52, U. Göttingen: 1917-20, a. o. Prof.; 1920-52, o. Prof. and Dir., Phys. Inst.
Interviews
One session, 19 pp. transcript.
Letters to
SOMMERFELD: 20 Mar 12, 29 Apr 12, (33,3).

POINCARÉ, HENRI.* b. 1854, Nancy, France; d. 1912, Paris, France.
1873-76, École Polytechnique, Paris.
1876-79, École des Mines, Paris.
1879, Dr. ès sci., U. Paris.
1879-81, U. Caen, Chargé de Cours.
1881-83, U. Paris, Maître de Conférences.
1883-97, École Polytechnique, Paris, R6petiteur.
1885-1912, U. Paris, Prof.
1902-12, École Supér. des Postes et des Télégraphes, Prof.
1904-08, École Polytechnique, Prof.
Letters to '
SOMMERFELD: 1 letter [undated] (33,3).
Unpublished material held elsewhere
DEUTSCHES MUSEUM, Munich, Germany [BRD]. 6 letters to H. Hertz, 1890 and [undated].
DEUTSCHE STAATSBIBLIOTHEK, Munich, Germany [BRD]. Letter to Konrad Dieterici, 1905; 2 to Foerster, 1908-[ ???] ; to Lozère, 1910; 2 to Schlesinger, 1899-1906; to Prof. Sturm, 1888; to Valentin, 1 letter [undated]; 5 to "a colleague", [undated]. (Darmstaedter Collection H 1879).
RIJKSMUSEUM VOOR DE GESCHIEDENIS DER NATUURWETENSCHAPPEN, Leiden, The Netherlands. Manuscript: "La Théorie de Lorentz et le Principe de Réaction," 23 pp. folio.
BURNDY LIBRARY, Norwalk, Conn. Manuscript in Weiner Collection.

PRINGSHEIM, ERNST.* b. 1859, Breslau, Germany; d. 1917, Breslau, Germany.
1877-82, U. Heidelberg, U. Breslau, U. Berlin:
1882, U. Berlin, Dr. phil.
1886-1905, U. Berlin: 1886-96, Priv.-Doz.; 1896-1905, a. o. Prof.
1905-17, U. Breslau, o. Prof.
Unpublished material held elsewhere
DEUTSCHE STAATSBIBLIOTHEK, Berlin. Material at present held at the Westdeutschen Bibliothek, Marburg/Lahn, Germany [BRD]. 3 letters to Kayser, 1 Jun 94, 26 Jun 13, 29 Jun 13. Letter to the Kultusminister Bosse, 1895; 2 to Prof. L. Darmstaedter, 1903; 3 to M. Iklé, 1905-15. (Darmstaedter Collection Fle 1886).
DEUTSCHES MUSEUM, Munich, Germany [BRD]. Letter to Planck, 24 Oct 00.

PRINGSHEIM, PETER.* b. 1881, Munich, Germany; d. 1963, Antwerp, Belgium.
1900-06, U. Munich: 1906, Dr. phil. with W. Roentgen.
1906-07, U. Göttingen.
1907-08, U. Cambridge, with J. J. Thomson.
1908-14, U. Berlin, Asst. to H. Rubens.
1914-18, Interned as enemy alien, Australia.
1920-33, U. Berlin: 1920-24, Priv.-Doz.; 1924-30, a. o. Prof.; 1930-33, Prof.
1933-40, U. Brussels, Prof. Agrégé.
Letters to
LANDÉ,: 29 Apr 24 (4,19).
SOMMERFELD: 20 Jun 28 (33,4).
Unpublished material held elsewhere
LIBRARY OF CONGRESS, Washington, D.C. Correspondence with Veblen, 1940.
EINSTEIN COLLECTION, Princeton, N.J. Correspondence with Einstein, 4 items 1922-24.

RABI, I. I.* b. 1898, Rymanow, Austria-Hungary.
1916-19, Cornell U.
1919-22, Misc. non-academic jobs.
1922-23, Cornell U.
1923-27, Columbia U.: 1927, Ph.D.
1924-27, City College of New York, Tutor.
1927-28, Barnard Fel.: U. Zurich, then U. Munich.
1928-29, Intl. Educ. Board Fel.: U. Copenhagen; U. Hamburg with O. Stern; U. Leipzig with W. Heisenberg; Eidgn. Techn. Hochsch. Zurich with W. Pauli.
1929 to date, Columbia U.: 1929-30, Lect.: 1930-35, Asst. Prof.; 1935-37, Assoc. Prof.; 1937 to date, Prof.
Misc.: 1936 Summer, U. Michigan, Lect. 1938 Summer, Stanford U., Lect.
Interviews
One session, 38 pp. transcript.
Letters to
KEMBLE: 27 Jul 36 (54,7).
Letters from
See: KEMBL, LOOMIS.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 4 May 33, 8 Apr 35. See: Bohr.
AMERICAN INSTITUTE OF PHYSICS, New York, N.Y. Transcripts of two interviews.

RAMAN, C. V. b. 1887, Irichinopolis, South India.
1902-07, Presidency Coll., Madras: 1907, M.A.
1907-17, Asst. Accountant-Gen., Indian Finance Dept., Calcutta.
1917-33, U. Calcutta, Prof.
1933-48, Indian Inst. of Science, Bangalore, South India, Dir.
Misc.: Frequently special lecturer at Indian universities.
1924, U. Toronto, Fel. and Lect.; Calif. Inst. Techn., Special Lect.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 21 Mar 23, 16 Aug 29, 6 Dec 29, 17 Dec 30, 18 Dec 30, [12 Mar 32], 13 Mar 32, 15 Mar 32, 12 Aug 32. See: Bohr.
BEDFORD COLLEGE LIBRARY, University of London, London, England. Letter to W. Wilson, 4 Dec 37.
LIBRARY OF THE SWEDISH ACADEMY, Stockholm, Sweden. Letters to Oseen, 1 Jul 29, 16 Dec 29.
EINSTEIN COLLECTION, Princeton, N.J. Correspondence with Einstein, 1 item 1953.

RAMSAUER, CARL, b. 1879, Oldenburg, Germany; d. 1955, Berlin, Germany.
1897-1903, U. Munich, U. Tübingen, U. Berlin, U. Kiel: 1903, U. Kiel, Dr. phil. with L. Weber.
1903-07, Imperial Torpedo Labs., Asst.; U. London and U. Breslau.
1907-21, U. Heidelberg: 1907-09, Asst.; 1909-21, Res. Physicist, Radiological Lab.
1921-28, Techn. Hochsch. Danzig, o. Prof.
1928-45, Allg. Elektr. Ges., Berlin. Dir., Res. Inst.
1931-45, Techn. Hochsch. Berlin, Hon. Prof.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 9 Oct 28, 19 Oct 28, 26 Nov 28. See Bohr.

RANDALL, H. M. b. 1870, Burr Oak, Mich., U.S.A.
1893-94, U. Michigan: 1893, Ph.B.; 1894, Ph.M.
1894-99, High school teacher, Michigan.
1899-1900, Michigan State Normal School, Ypsilanti, Instr.
1900-40, U. Michigan: 1900-01, Asst.; 1901-06, Instr.; 1902, Ph.D.; 1906-09, Asst. Prof.; 1909-16, Assoc. Prof.; 1916-40, Prof.
Letters to
DENNISON: 14 Jan 27 (59,1).
GOUDSMIT: 29 Apr 27 (61,3); 17 Jun 27 (61,4) ; 2 letters 27 Jul 27 (61,5) ; 9 Aug 27 (61,6) ; 27 Apr 28 (62,1); 4 Mar 29, 23 Mar 29, 26 Mar 29, (63,2); 5 Apr 29 (63,3); 10 Jun 29 (63,5); 3 Sep 29 (63,6); 18 Aug 31 (65,4); 5 Jan 32 (65,6).
KRAMERS: 1 Nov 24 (8,9); 7 May 38 (10,10).
UHLENBECK: 7 Aug 27 (61,6).
Letters from
See: EHRENFEST, GOUDSMIT, HUGHES, KRAMERS, UHLENBECK.
Unpublished material held elsewhere
AMERICAN INSTITUTE OF PHYSICS, New York, N.Y. Autobiographical memoir. Tape-recorded interview.

RASETTI, FRANCO.* b. 1901, Castiglione del Lago, Perugia, Umbria, Italy.
1918-23, U. Pisa: 1923, Dott. fis. with L. Puccianti.
1923-26, U. Florence, Asst. Prof.
1926-39, U. Rome: 1926-27, Asst. to O. M. Corbino; 1927-34, Asst. Prof.; 1934-39, Prof. 1939-47, Laval U., Quebec, Prof.
Misc.: 1928-29, Calif. Inst. Techn., Rockefeller Found. Fel.
1936, Columbia U., Res. Assoc.
1936, Cornell U., Visiting Prof.
Interviews
One session, 27 pp. transcript.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. 3 letters to Bohr, 1937-39. See: Bohr.
PAULI COLLECTION, Zurich, Switzerland. Letter to Pauli, 4 Jan 56.

RAUSCH VON TRAUBENBERG, HEINRICH. b. 1880, Rittergut Jörden, Estonia; d. 1944, Hirschberg am See, Bohemia, Czechoslovakia.
1899-1903, U. Leipzig and U. Freiburg/Breisgau.
1903-05, U. Würzburg: 1905, Dr. phil. with W. Wien.
1905-10, Worked for electrical engin. firms, Berlin, then U. Leipzig, U. Würzburg and U. St. Petersburg.
1910-23, U. Göttingen: 1912-23, Priv.-Doz., then a. o. Prof.
1923-31, U. Prague, o. Prof. 1931-37, U. Kiel, o. Prof.
Letters to
BOHR: 9 Oct 20, 2 Sep 21, (BSC 8,1).
SCHRÖDINGER: 25 May 32 (37,11).
SOMMERIELD: 3 Jul 28, 28 Jun 29, 5 Nov 30, (33,5).
Letters from
See: BOHR.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 30 Dec 33, 11 Apr 34. See: Bohr.

RAY, B. B.
1923-31, U. Calcutta, Lecturer.
1924-26, Study in Europe.
Letters to
GOUDSMIT: 2 Mar 26, 3 Apr 26, 16 Apr 26, (60, 6); 29 Jun 26 (60,7); 12 Oct 26 (60,9); 10 Feb 27 (61,2).
Letters from
See: GOUDSMIT.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 23 Mar 23, 30 May 23, (Jun 23], 6 May 24, 2 Sep 24, 6 Mar 26, 16 Apr 26, 25 Apr 26, 2 May 26, 21 Jun 26, 12 Oct 26, 23 Dec 26, 31 Mar 27, 29 Feb 28, [1930]. See: BOHR.

LORD RAYLEIGH, [J. W. STRUTT]. b. 1842, Langford, Essex, England; d. 1919, Witham, Essex, England.
1861-71, U. Cambridge: 1865, M.A.; 1866-71, Fel.
1871, Retired to his estates.
1879-84, U. Cambridge, Prof, and Dir., Cavendish Lab.
1884, Retired to his estates.
1887-1905. Royal Institution of Great Britain, Prof.
Letters to
SOMMERFELD: 12 Dec 11 (33,5).
Unpublished material held elsewhere
RUTHERFORD COLLECTION, Cavendish Laboratory, Cambridge, England. Letters to Rutherford, 4 Feb 07 to 9 Feb 12. See: Rutherford.
BURNDY LIBRARY, Norwalk, Conn. Manuscript in Weiner Collection.
AIR FORCE CAMBRIDGE RESEARCH LABORATORIES, Bedford, Mass. Major collection of research notebooks.
AMERICAN INSTITUTE OF PHYSICS, New York, N.Y. Letters to Wood, 23 Jul 03, 12 Jul 04, 26 Sep 04, 22 Jan 06.

REICHE, FRITZ.* b. 1883, Berlin, Germany. 1901-02, U. Munich.
1902-07, U. Berlin: 1907, Dr. phil. with M. Planck.
1908-11, U. Breslau.
1911-18, U. Berlin, Asst. to M. Planck; 1913-15, Priv.-Doz:
1919-21, Kaiser Wilhelm Inst. f. Phys. Chem., Berlin-Dahlem.
1921-33, U. Breslau, o. Prof.
1934-35, U. Prague, Guest Prof.
1935-41, In Germany, held no academic position.
Interviews
Three sessions, 36 pp. transcript.
Letters to
GOUDSMIT: 20 Mar 26 (60,6).
KRAMERS: 9 May 23, 28 Dec 23, 9 Apr 24, (8,9).
LANDÉ: 17 Apr 19 (4,19).
VAN VLECK: 20 Feb 27 (49,12).
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. See: Bohr.
LIBRARY OF CONGRESS, Washington, D.C. Correspondence with Veblen, 1939-41.
EINSTEIN COLLECTION, Princeton, N.J. Correspondence with Einstein, 2 items 1909-42.

RICHARDSON, O. W. b. 1879, Dewsbury, Yorkshire, England; d. 1959, Alton, Hampshire, England.
1897-1906, U. Cambridge: 1902-06, Fel.; 1904, M.A.; 1904-06, Clerk Maxwell Student; 1905-06, Dir., Science Studies, Corpus Christi.
1906-13, Princeton U., Prof.
1914-44, U. London: 1914-24, Prof.; 1924-44, Res. Dir.
1924-44, Royal Society of London, Yarrow Res. Prof.
Misc.: 1932, Yale U., Lect.
Letters to
BOHR: 4 Apr 14, 16 May 15, 23 Sep 15, 14 Dec 16, 19 Sep 18, 11 Apr 19, 16 Feb 20, 6 Mar 20, 19 Jun 20, 24 Nov 20, 9 May 21, 8 Jul 21, 15 Aug 22, (BSC 6,1).
SCHRÖDINGER: Nov 33 (43,4).
Letters from
See: BOHR.
Unpublished material held elsewhere
BURNDY LIBRARY, Norwalk, Conn. Manuscript in Weiner Collection.
LIBRARY OF CONGRESS, Washington, D.C. Correspondence with Veblen, 1924-60.
HUMANITIES RESEARCH CENTER, UNIVERSITY OF TEXAS, Austin, Tex. Major collection of papers, manuscripts, and correspondence.

RITZ, WALTHER. b. 1878, Sion, Valais, Switzerland; d. 1909, Göttingen, Germany.
1897-1901, Eidgn. Techn. Hochsch. Zurich.
1901-03, U. Gbttingen: 1902, Dr. phil. with W. Voigt.
1903, U. Leiden, U. Bonn, and École Norm. Sup., Paris, research with A. Cotton.
1904-07, Retired from academic work for reasons of health: 1904, St. Blasien, Black Forest; 1905-06, Sion, Switzerland; 1906-07, Nice, France.
1907-08, U. Tübingen with F. Paschen. 1908-09, U. Göttingen, Priv.-Doz.
Unpublished material held elsewhere
DEUTSCHES MUSEUM, Munich, Germany [BRD]. 5 letters to Runge, 1903-09.

ROSENFELD, LÉON.* b. 1904, Charleroi, Belgium.
1922-26, U. Liège: 1926, Dr. phil. '
1926-27, École Norm. Sup., Paris, with L. de Broglie; Collège de France.
1927, Spring, U. Brussels with T. de Donder.
1927-29, U. Göttingen, Asst. to M. Born, then U. Leiden, Lect.
1929-30, Eidgn. Techn. Hochsch. Zurich, with W. Pauli.
1930-40, U. Liège: 1930-35, Reader; 1935-40, Prof.; also U. Copenhagen, Asst. to N. Bohr.
Interviews
Three sessions, 63 pp. transcript.
Letters to
KRAMERS: 5 letters 1942-51 (13,11).
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 26 Apr 28, 21 May 28, 27 Feb 29, 10 Aug 29, 50 letters 1939-61; to Delbrück, 22 Mar 36; 2 to Fock, 1959. See: Bohr, Delbrück, Dirac, Weisskopf.
DUKE UNIVERSITY ARCHIVES, Durham, N.C. Letters to London, 10 May 33, 23 May 33, 4 Jun 33.

ROSSELAND, SVEIN.* b. 1894, Nordheimsund, Norway.
1917-19, U. Oslo.
1919-20, Geofysiske Inst., Bergen, Asst. to V. Bjerknes.
1920-24, U. Copenhagen.
1924-27, U. Oslo: 1924-26, Intl. Educ. Board Fel.; 1927, Dr. phil.
1928 to date, U. Oslo, Prof.: 1934 to date, Dir., Inst. Theor. Phys.
Misc.: 1929-30, Harvard U., Visiting Prof.
Letters to
BOHR: 26 Feb 20, 17 Mar 20, 6 Aug 20, 15 Feb 21, 18 Mar 21, 29 May 21, 1 Jul 21, 2 letters 26 Feb 22, (BSC 6,2).
COSTER: 11 Apr 22 (8,9).
FRANCK: 9 Mar 22 (BSC 2,4).
KRAMERS: 18 Mar 25 (8,9); 7.Apr 50 (13,11).
Letters from
See: BOHR.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 18 Sep [24], 23 Oct 24, 23 Apr 25, [1925], 11 Aug 25, 31 Aug 26, 23 May 27, [Jun 27], 24 Feb 28, 15 Jun 28, 20 Dec 28, 17 Jan 29, 18 Mar 29, 4 May 29, 8 Dec 29, 22 May 30, 15 Dec 30, 19 Dec 30, 16 Feb 31, 17 Mar 31, 30 Apr 31, 21 Jun 31, 17 Dec 31, 13 Feb 32, 18 Mar 32, 2 Apr 32, 26 Jan 34, 22 May 34, 6 letters 1944-59. See: Bohr.
LIBRARY OF THE SWEDISH ACADEMY, Stockholm, Sweden. Letter to Oseen, 7 Feb 34.

ROZHDESTWENSKY, DMITRI. b. 1876, St Petersburg, Russia; d. 1940.
1894-1915, U. St. Petersburg: 1901-12, Asst.; 1912-15, Lect.; 1915, Dr. phys.
1915-c. 36, U. St. Petersburg, Prof. and Dir., Phys. Inst.
1918-c. 36, Optical Research Inst., Petrograd, Dir.
Letters to
BOHR: 15 May 21 (BSC 6,2).
Letters from
See: BOHR.

RUARK, A. E. b. 1899, Washington, D.C., U.S.A.
1918-24, Johns Hopkins U.: 1924, Ph.D. with R. W. Wood.
1922-26, U. S. Bureau of Standards, Member, Atomic Structure Section.
1926-27, Yale U., Asst. Prof.
1927-30, Gulf Oil Companies, Mellon Inst., Pittsburgh: 1927-29, Physicist, 1929-30, Chief, Phys. Division.
1930-34, U. Pittsburgh, Prof.
1934-44, U. North Carolina, Prof.
Letters to
KEMBLE: 5 Feb 35, 11 Feb 35, 19 Mar 35, 25 Mar 35, 23 Jul 35, 6 Aug 35, 27 Sep 35, (54,7).
LANDÉ: 16 Jul 24 (4,19).
SHENSTONE: 2 and 5 Jul 28 (59,3).
SOMMERFELD: 9 Aug 24 (33,5).
VAN VLECK: 22 Mar 24 (49,13).
Letters from
See: KEMBLE, VAN VLECK.
Manuscripts
Critical remarks on an early draft of Van Vleck's National Research Council Bulletin, Quantum Principles and Line Spectra, 33 pp., Mar 24 (49, 13).
Unpublished material held elsewhere
AMERICAN INSTITUTE OF PHYSICS, New York, N.Y. Autobiographical memoir.
DUKE UNIVERSITY ARCHIVES, Durham, N.C Letter to London, 31 Mar 31.

RUBENS, HEINRICH. b. 1865, Wiesbaden, Germany; d. 1922, Berlin, Germany.
1883-84, Techn. Hochsch. Darmstadt.
1884-95, U. Berlin: 1889, Dr. phil., 1889-92, Asst.; 1892-95, Priv.-Doz.; except 1886-88, U. Strassburg.
1895-1903, Techn. Hochsch. Berlin: 1895-1900, Priv.-Doz.; 1900-03, o. Prof.
1903-06, Militairtechn. Akad., Berlin, Prof.
1906-22, U. Berlin, o. Prof.
Letters to
GERLACH: 10 May 21 (19,7).
SCHRÖDINGER: Nov 33 (43,4).
Letters from
See: GERLACH.
Unpublished material held elsewhere
DEUTSCHE STAATSIBIBLIOTHEK, Berlin. Material at present held at the Westdeutschen Bibliothek, Marburg/Lahn, Germany [BRD]. Letter to Darmstaedter, 1909; to Flügge, 1917; to Geitel, 1907; to Iklé, 1908; to Scheel, 21 Feb 14; to Waldeyer, 1916; to Wiedemann, 1916; 3 to [???], 1903. 2 Lebenslaufe, 20 Jun 90, 19 Feb 92, for the Kultusministerium, Berlin. 2 announcements of his lectures. (Darmstaedter Coll., Flc 1897). 3 letters to Luschan, 1917-19. (Nachlass Luschan).
UNIVERSITÄTSBIBLIOTHEK, Erlangen, Germany [DDR]. Rubens' response to an invitation of the Societas Physicomedica in Erlangen to their centennial celebration, 27 Jun 08. (Ms 2565/6).
DEUTSCHESMUSEUM, Munich, Germany [BRD]. Letter to Feddersen, 1908; to Graetz, 1904; 3 to H. Hertz 1890, 1 letter [undated]; to Runge, 20 May 04.

RUBINOWICZ, ALDEBERT.* b. 1889, Sadagora, near Czernowitz, Poland.
1908-15, U. Czernowitz: 1912-15, Asst. to J. Geitler; 1914, Dr. phil. with M. Radakovic.
1916-18, U. Munich: 1917-18, Asst. to A. Sommerfeld.
1918-20, U. Czernowitz, Priv.-Doz.
1920-22, U. Ljubljana, Prof.
1922-41, Techn. Hochsch. Lwów, Prof.
Misc.: 1920, 1922, U. Copenhagen.
Interviews
One session, 22 pp. transcript.
Written answers to additional questions arising from the interview, 12 pp.
Letters to
BOHR: 7 Oct 19, 6 Nov 19, 12 Dec 19, 12 Jan 20, 7 Feb 20, 12 Feb 20, 11 Mar 20, 25 Mar 20, 19 Apr 20, 2 Oct 20, 1 Dec 20, 31 Mar 21, 18 Apr 21, 13 Aug 21, 14 Aug 21, 28 Dec 21, 1 Feb 22, 26 Feb 22, 14 Mar 22, 11 Jun 22, 8 Oct 22, 16 Nov 22, (BSC 6,2).
KRAMERS: 9 Jul 22 (8,9) ; 5 Apr 29, 2 letters 1939, (10,10); 2 letters 1946-49 (13,11).
SOMMERFELD: 4 letters 1936-49 (33,6).
Letters from
See: BOHR, BURGERS, COSTER, EpSTEiN, HALPERIN, DE HEVESY, KRAMERS, VAN LEEUWEN, PAULI, SCHRÖDINGER, SMEXAL, SOMMERFELD, STARK, TAKAMINE, ZEEMAN.
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. 2 letters to Bohr, 1962. See: Bohr.
LIBRARY OF THE SWEDISH ACADEMY, Stockholm, Sweden. Letter to Oseen, 29 Jan 14.

RUNGE, CARL. b. 1856, Bremen, Germany; d. 1927, Göttingen, Germany.
1876-77, U. Munich.
1877-80, U. Berlin: 1880, Dr. phil.
1883-86, U. Berlin, Priv.-Doz.
1886-1904, Techn. Hochsch. Hanover, a. o. Prof.
1904-27, U. Göttingen: 1904-24, o. Prof.; 1924-27, Prof. Emer.
Letters to
KRAMERS: 8 Oct 23 (8,9).
LANDÉ: 2 Sep 24 (4,19).
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letter to Kramers, 17 Aug 23. See: Kramers.
WESTDEUTSCHEN BIBLIOTHEK, Marburg/Lahn, Germany [BRD]. Some material [amount unspecified]. (Darmstaedter Coll., H 1885 11).
BAYERISCHE STAATSBIBLIOTHEK, Munich, Germany [BRD]. Minute on Runge's admission to the Gesellschaft d. Wiss., Göttingen 1922. (Amiraiana viii, 11).
DEUTSCHES MUSEUM, Munich, Germany [BRD]. 2 letters to H. Hertz, 1893; to Kaufmann, 18 Oct 03; to Voigt, 1901, 1904. See: Einstein, Mie, Ritz, Rubens, Rutherford, Rydberg, Schwarzschild, Stark, Voigt, Warburg, Wien, Zeeman.
BIBLIOTHEK DER EIDGENÖSSISCHEN TECHNISCHEN HOCHSCHULE, Zurich, Switzerland. Letter to Weyl, 22 Jul 25.

RUSSELL, H. N. b. 1877, Oyster Bay, N.Y., U.S.A.; d. 1957, Princeton, N.J., U.S.A.
1897-1900, Princeton U., Fel.: 1897, A.B.; 1899, Ph.D. with C. A. Young.
1903-05, U. Cambridge Observatory, with A. R. Hinks.
1905-47, Princeton U.: 1905-08, Instr.; 1908-11, Asst. Prof.; 1911-47, Prof.; 1912-47, Dir., Observatory.
Misc.: 1928-29, Yale U., Lect.
Letters to
SOMMERFFLD: 19 Jun 39 (33,6).
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 7 Dec 23, 31 Jan 24.
DEUTSCHE STAATSBIBLIOTHEK, Berlin. Material at present held at the Westdeutschen Bibliothek, Marburg/Lahn, Germany [BRD]. Letters to Kayser, 24 Apr 13, 30 Jul 13. (Darmstaedter Coll., Flc 1913).
EINSTEIN COLLECTION, Princeton, N.J. Correspondence with Einstein, 2 items 1936-37.

RUTHERFORD, ERNEST.* b. 1871, Spring Grove, South Island, New Zealand; d. 1937, Cambridge, England.
1889-94, Canterbury Coll., New Zealand: 1894, M.A.
1895-98, U. Cambridge, 1851 Exhibition Science Scholar.
1898-1907, McGill U., Montreal, Prof.
1907-19, U. Manchester, Prof.
1919-37, U. Cambridge, Prof. and Dir., Cavendish Lab.
Misc.: 1905, 1906, 1909,1914, Lectures in America.
1913, U. Amsterdam, Lecturer.
1920, U. Copenhagen, Lecturer.
Letters to
BOHR: 27 Jan 12, 11 Nov 12, 24 Feb 13, 20 Mar 13, 25 Mar l3, 13 May 13, 24 Jun 13, 2 Sep 13, 11 Dec 13, 13 Dec 13, 24 Jan 14, 16 Mar 14, 20 May 14, 31 Jul 16, 21 Sep 16, 18 Dec 16, 9 Dec 17, 30 Jun 18, 17 Nov 18, 11 Jan 19, 30 Mar 19, 1 Jul 19, 27 Aug 19, 4 Jan 20, 15 Jan 20, 18 Feb 20, 26 Mar 20, 13 Jul 20, [13] Aug 20, 13 Nov 20, 30 Nov 20, 1 Jan 21, 26 Jan 21, 6 Feb 21, 19 Feb 21, 4 Mar 21, 30 Mar 21, 3 May 21, 3 Aug 21, 26 Sep 21, [12] Nov 21, 9 Dec 21, 11 Feb 22, 22 Feb 22, 5 Jun 22,25 Nov 22, (BSC 6,3).
GOUDSMIT: 20 Sep 27 (61,7).
HEISENBERG: 26 Mar 34 (45,2).
Letters from
See: BOHR, KRAMERS, LYMAN.
Manuscripts
Lecture on nuclear physics, 7 pp., incomplete, Göttingen, [1932] (78,1).
Unpublished material held elsewhere
BOHR COLLECTION, Copenhagen, Denmark. Letters to Bohr, 8 Jan 23, 4 Feb 23, 15 Feb 23, 28 Feb 23, 2 Mar 23, 26 Mar 23, 21 Apr 23, 25 Apr 23, 22 May 23, 20 Feb 24, 16 Apr 24, 18 Jul 24, 11 Apr 25, 21 Apr 25, 8 Feb 26, 1 Jun 26, 11 Nov 26, 24 Oct 27, 19 Dec 28, 6 Nov 29, 19 Nov 29, 8 Feb 30, 21 Mar 30, 20 Apr 30, 9 Jun 30, 24 Jan 31, 9 Sep 31, 10 Sep 31, 10 Sep 31, 27 Jan 32, 21 Apr 32, 26 May 32, 1 Jun 32, 18 Jun 32, 2 letters 1 Sep 32, 5 Sep 32, 19 Oct 32, 13 Nov 32, 13 Nov 33, 21 Dec 33, 3 Jan 34, 9 Jul 34, 30 Apr 35, 3 Jun 35, 31 Oct 35, 5 letters 1936-37; to de Hevesy, 8 Jan 22. See: Bohr.
RUTHERFORD COLLECTION, Cavendish Laboratory, Cambridge, England. Letters to Blackett, 1937; to Bohr, 28 Jan 35 to 16 Aug 37; to B. B. Boltwood, 1904-24; to Born, 22 Feb 36 to 2 Nov 36; 3 to R. W. Boyle, 1916-36; to Bragg, 20 Dec 11, 23 Dec 11, 12 Jun 16; to P. W. Burbidge, 1936; to Chadwick, 1925-36; to William Crookes, 1902; to Madame P. Curie, 1910; to Gamow, 3 May 37; to Geiger, 23 Nov 12 to 5 Sep 37; to 0. Hahn, 1906-1937; to V. F. Hess, 1936; to de Hevesy, 19 Feb 12 to 10 May 37; to F. Joliot, 14 Aug 36; to 1. Joliot-Curie, 24 Oct 35; to Kapitza, 9 Sep 2 , other letters uncatalogued; to Langmuir, 14 Jun 37; to E. O. Lawrence, 1935-37; to Lord Linlithgow, 1936; to Stefan Meyer, 1910-37; correspondence about printing of Moseley photograph for distribution, Jun 25; to Hans Petterson, 1925; 2 to W. Ramsay, 1907; to Rayleigh, 5 Jul 07; to Stark, 14 Mar 34; to Urey, 20 Jun 33, 1 letter [undated] on C. T. R. Wilson's recommendation for Nobel Prize; to A. B. Wood, 1917. Draft manuscript of obituary notice of Boltwood. Manuscript and typescript of obituary notice of Madame Curie. Obituary notice of Moseley. Rutherford's testimonial recommending P. Kapitza for Trinity fellowship. Article, "Moseley's work on X-rays." See: Barkla, Blackett, Bohr, Born, Bragg, M. de Broglie, Cockroft, Darwin, Debye, Epstein, Fajans, Fermi, R. H. Fowler, Gamow, Geiger, Goudsmit, de Hevesy, jeans, F. Joliot, 1. JoliotCurie, Kapitza, Langevin, Langmuir, Larmor, Lewis, Lorentz, Marsden, Meitner, Moseley, Nagaoka, Perrin, Planck, Rayleigh, Stark, J. J. Thomson, Townsend, Urcy, C. T. R. Wilson, Zeeman.
BEDFORD COLLEGE LIBRARY, University of London, London, England. Letter to W. Wilson, 22 Oct 29.
ROYAL SOCIETY LIBRARY, London, England. 70 letters, 1904-30. 1 referee report, 1896.
DEUTSCHE STAATSBIBLIOTHEK, Berlin. Material at present held at the Westdeutschen Bibliothek, Marburg/Lahn, Germany [BRD]. 4 letters to Elster and Geitel, 1899-1913; to Otto Hahn, 1908; to Kayser, 2 Jun 08, 16 Sep 08; to joh. K6nigsberger, 1909; to Marckwald, 1903. (Darmstaedter Coll., Gl 1896).
DEUTSCHES MUSEUM, Munich, Germany [BRD]. Letter to Runge, 4 Oct 06.
ALGEMEEN RIJKSARCHIEF, The Hague, The Netherlands. Letters to Lorentz.
BURNDY LIBRARY, Norwalk, Conn. Manuscript in Weiner Collection.
EINSTEIN COLLECTION, Princeton, N.J. Correspondence with Einstein, 1 item 1930.
AMERICAN INSTITUTE OF PHYSICS, New York, N.Y. Letter to Duane, 26 Nov 08.

RYDBERG, J. R. b. 1854, Halmstad, Sweden; d. 1919, Lund, Sweden.
1873-1880. U. Lund: 1876-80, Amanuensis, Phys. Inst.; 1879, Dr. phil.
1880-1919, U. Lund: 1880-92, Docent.; 1892-1901, Asst.; 1901-19, a. o. Prof. and Dir., Phys Inst.
Unpublished material held elsewhere
DEUTSCHE STAATSBIBLIOTHEK, Berlin. Material at present held at the Westdeutschen Bibliothek, Marburg/Lahn, Germany [BRD]. Letter to Darmstaedter, 1911; to Kayser, 11 Dec 99, 20 Dec 99, 19 May 14, 1 Jul 14. (Darmstaedter Coll., Flc 1890).
DEUTSCHES MUSEUM, Munich, Germany (BRD]. Letters to Runge, 11 Dec 99, 20 Dec 99.
UNIVERSITETS-BIBLIOTEKET, University of Lund, Lund, Sweden. Rydberg's papers preserved in the library comprise 104 volumes (95 books of notes, 1 volume of letters and 4 volumes of lectures) plus a manuscript, "Recherches sur la constitution des spectres d'émission des 61iments chimiques."