University of Oklahoma Libraries History of Science Collections

J. Rud Nielsen Papers and Slides

Nielsen, Jens Rud (1894-1979). Papers and slides, 1861-1988. 25 cubic feet. Physics professor. Correspondence, publications, and research materials from the life and career of University of Oklahoma physics professor J. Rud Nielsen. The papers focus on his research files, his publications, and collected works by other authors. The research files include his work on early volumes of Niels Bohr’s Collected Works; his research on molecular structure using Raman spectroscopy; reports of grant and contract projects for the Office of Naval Research, National Science Foundation, and the U.S. Atomic Energy Commission; and materials for physics courses taught at OU. Other materials document OU Physics Department events such as Niels Bohr’s visits to the Norman campus for public lectures. The collection also includes 1,041 glass slides depicting research results and physics principles; and printing blocks of graphics for articles in the Journal of the Optical Society of America and the Journal of Chemical Physics.

Biographical Note Jens Rud Nielsen was born in 1894 in Copenhagen, Denmark. He earned a master’s degree from the University of Copenhagen in 1919 where he studied under Niels Bohr. He immigrated to the United States in 1922, and earned a Ph.D. from the California Institute of Technology. In 1924 he was recruited to join the faculty at the University of Oklahoma Department of Physics. He taught theoretical physics courses and established an extensive research program at OU. In 1931 Nielsen was the first faculty member to be awarded the Guggenheim Fellowship, which he used to study in Copenhagen with Niels Bohr. Nielsen’s career at OU spanned 41 years. During this time he conducted research for the U.S. Naval Research Laboratory, helped organize the OU Research Institute, and edited the early volumes of Niels Bohr’s Collected Works. Upon his retirement in 1965 OU named the physics building Nielsen Hall in his honor, and in 1971 he was inducted into the Oklahoma Hall of Fame. Nielsen was married to Gertrude Siegmund, and had three children: John, Thomas, and Mary. He died in 1979 in Norman, Oklahoma.

Restrictions on Access This collection is open to the public for research.

Processing Note This collection was processed by Dewayna York in 2019, funded by a grant from the Center for History of Physics, American Institute of Physics.

Collection Series Series 1: Biographical and Family, 1940-1978 This series includes biographical information on Nielsen and his family members. It is arranged chronologically.

Series 2: General Correspondence, 1933-1977 This series contains general correspondence to Nielsen, arranged chronologically.

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Series 3: University of Oklahoma Department of Physics, 1937-1976 This series contains correspondence and printed materials from the OU Physics Department. It includes materials related to Niels Bohr’s visits to the OU campus in 1937 and 1957. The files are arranged chronologically.

Series 4: Research and Teaching, 1906-1988 This series contains Nielsen’s speeches, teaching notes, general physics research, his research on Niels Bohr, and his publications. Most of the Niels Bohr materials are related to Nielsen’s translation work and editorship of the early volumes of Niels Bohr’s Collected Works. Subseries 4A. Speeches, 1925-1968. This series contains drafts and speeches written by Nielsen, arranged chronologically. Subseries 4B. Teaching, 1950-1968. This series contains teaching notes and materials for the physics classes Nielsen taught at OU, arranged in original order. Subseries 4C. Physics Research, 1933-1974. This series contains Nielsen’s research notes, article drafts, and project reports for grants and contracts with the Office of Naval Research, the U.S. Atomic Energy Commission, and the National Science Foundation. The files are arranged in original order. Subseries 4D. Niels Bohr Research, 1906-1988. This series contains Nielsen’s research notes, copies and translations of Bohr’s letters and publications, and manuscript drafts for the early volumes of Niels Bohr’s Collected Works, edited by Nielsen. The abbreviation NBCW is used for this work throughout the finding aid. The series is arranged by volume, in roughly original order. Subseries 4E. Publications by J. Rud Nielsen, 1921-1967. This series contains reprints and other publications by J. Rud Nielsen and is arranged chronologically.

Series 5: Collected Publications, 1861-1975 This series contains publications by authors other than Nielsen. Subseries 5A. Periodicals, 1861-1975. This series contains preprints, reprints, articles, and clippings by other authors. Topics include mathematics, physics, and current issues in science. Many of the math-related items are inscribed to OU mathematics professor Nathan A. Court, who was Nielsen’s colleague and friend. The series is arranged alphabetically by the principal author’s last name. Subseries 5B. Books, 1923-1952. This series contains books that belonged chiefly to two of Nielsen’s children, Tom and Mary. The books are in English, Danish and German, and are arranged by size within the document case.

Series 6: Printing Blocks, 1947-1950 This series contains wooden printing blocks of cuts that depict physics research results presumably printed in scientific journals, including the Journal of the Optical Society of America and the Journal of Chemical Physics. The printing blocks are arranged in their original mailing packets.

Series 7: Glass Slides, undated This series contains glass slides that depict physics principles and research results. The slides may have been used in teaching, and illustrations in publications. The slides are primarily arranged by the original alpha-numeric code on the slide label.

Preferred Citation J. Rud Nielsen Papers and Slides. HOS M2. History of Science Collections, University of Oklahoma Libraries, Norman, Oklahoma.

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Collection Inventory

Description Date(s)

Series Box Folder Series 1: Biographical and Family Box 1 1 1 1 Personal and family correspondence 1945-1951 1 1 2 Thomas Rud Nielsen’s death certificate and correspondence 1945-1964 regarding his burial. 1 1 3 Photographs primarily of Nielsen at OU, and a golden anniversary circa 1940- invitation list. 1960 1 1 4 Photographs and annual Christmas letters from Homer Dodge and 1951-1973 family, including images of Cremona Farm in Maryland. 1 1 5 Gertrude Nielsen’s notebook with notes on India. Includes an Indian 1966 coin and a photograph. 1 1 6 Programs, publicity, and correspondence regarding Nielsen’s 1971-1973 induction to the Oklahoma Hall of Fame. 1 1 7 Travel postcards and photographs 1974-1978

Series 2: General Correspondence 2 1 8 Correspondence 1933-1964 2 1 9 Correspondence 1951-1973 2 1 10 Correspondence 1960-1965 2 1 11 Correspondence 1966

Box 2 2 2 1 Correspondence 1967 2 2 2 Correspondence 1967 2 2 3 Correspondence 1968-1970

Series 3: University of Oklahoma Department of Physics (See also Box 49 for related oversize materials) 3 2 4 Correspondence and printed materials about Niels Bohr’s 1937 and 1937-1958 1957 lectures at OU. 3 2 5 Correspondence about Niels Bohr’s 1937 and 1957 lectures at OU. 1937-1976 3 2 6 Printed flyer for a lecture by Professor Phillip Frank at OU. 1938 3 2 7 Conference and event materials, including an Atoms for Peace award 1950-1963 program (Niels Bohr recipient). 3 2 8 Correspondence from Nielsen regarding Niels Bohr and his OU 1957 lectures and related issues.

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Description Date(s)

Series Box Folder 3 2 9 Draft and published copies of Niels Bohr’s OU lecture, Atoms and 1957 Human Knowledge. 3 2 10 Printed materials about graduate study at the OU Department of 1961 Physics. 3 2 11 Inauguration program for Herbert Hollomon as president of OU. 1968 Includes physics department faculty and staff lists. 3 2 12 Issues of Sooner Magazine featuring articles about the physics 1962-1966 department, and Niels Bohr. 3 2 13 Publicity drafts for Niels Bohr’s 1957 visit to OU, including “Niels 1963 and Bohr: Pioneer of Atomic Physics” by Nielsen, and later Bohr undated chronologies. 3 2 14 Correspondence and publicity for an American Physical Society 1965 luncheon at OU honoring Nielsen organized by his former students. 3 2 15 Correspondence on the establishment of the Nielsen Prize at OU. 1972-1973

Series 4: Research and Teaching Subseries 4A: Speeches Box 3 4 3 1 “The Photo-electric Effect and the Structure of Light.” 1925 4 3 2 “The Importance of Research in the University Program.” 1934 4 3 3 “Some Reflections on the Value of Science.” Federated Women’s 1934 Clubs, Oklahoma City. 4 3 4 “Modern Physics and the General Theory of Knowledge.” Philosophy 1936 Club. 4 3 5 “Aberrations in Ellipsoidal Mirrors Used in Infrared Spectrometers.” 1943-1947 Conference on Industrial and Chemical Infrared Spectroscopy, Ann Arbor, Michigan. 4 3 6 “The Absorption Laws for Gases in the Infrared.” American Physical 1944 Society, Chicago. APS invited paper. 4 3 7 “Spectroscopy and What It Reveals.” Public lecture, University of 1945 Oklahoma. 4 3 8 “Atomic and Molecular Energies.” 1945 4 3 9 “Atomic Energy and Decentralization.” 1948 4 3 10 “Atomic Energy: For War or for Peace?” Oklahoma Institute of 1948 International Relations. 4 3 11 “Application of Raman Spectroscopy to Petroleum Chemistry.” 1949 Oklahoma City, ACS meeting. 4 3 12 “Vibrational Spectra of Fluorinated Hydrocarbons.” American Physical 1951 Society, Houston. 4 3 13 Remarks made at a meeting celebrating the 25th anniversary of the 1952 founding of Books Abroad.

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Description Date(s)

Series Box Folder 4 3 14 “Our Responsibilities as Scientists.” Oklahoma Academy of Science. 1953 4 3 15 “Raman Spectroscopy.” LSU Symposium on Modern Methods of 1953 Analytical Chemistry. 4 3 16 Remarks at a memorial service for the Reverend E. Nicholas Comfort. 1956 4 3 17 “Niels Bohr: Pioneer of Atomic Physics.” 1957 4 3 18 “Vibrational Spectra of 1, 2 Difluoroethane.” American Physical 1960 Society, Houston. 4 3 19 “Vibrational Spectra of Compounds with Long Methylene Chains.” 1962 Pittsburgh conference. 4 3 20 “Atomic and Molecular Energy States.” Bartlesville, Oklahoma. 1963 4 3 21 “Memories of Niels Bohr.” Oklahoma City University. 1963 4 3 22 “Uncertainty and Complementarity.” Kansas State University. 1963-1966 4 3 23 “Earliest Reminiscences of Niels Bohr.” American Physical Society, 1963 Niels Bohr Memorial Session, Washington, D.C. 4 3 24 Drafts of “Memories of Niels Bohr” with corrections. undated 4 3 25 “Memories of Niels Bohr.” Long version. 1963 4 3 26 “Memories of Niels Bohr.” American Physical Society, Houston. 1963 4 3 27 Notes for “Some Aspects of the Work of Niels Bohr.” Phi Beta Kappa, 1967 Norman, Oklahoma. 4 3 28 Draft of “Uncertainty and Complementarity.” 1968

Subseries 4B: Teaching 4 3 29 Notes on Classical Theory of Rayleigh and Raman Scattering undated

Box 4 4 4 1 Notes on Quantum Mechanics (Schiff) undated 4 4 2 Notes on Modern Physics. Physics 322 undated 4 4 3 Notes on Zemansky. Physics 315 undated 4 4 4 Notes on Sears. Physics 315 undated 4 4 5 Notes on History of Thermodynamics. Physics 315 1963 4 4 6 Statistical Mechanics. Notes to Guerney's book. 1950 4 4 7 Notes to Rushbrooke. Physics 416 1952-1961

Box 5 4 5 1 Class exams and notes for Physics 380 1952-1963 4 5 2 Class exams and notes for Physics 380 1956 4 5 3 Rushbrooke notes, and class exams and notes, part 1 for Physics 416 1964 4 5 4 Rushbrooke notes, and class exams and notes, part 2 for Physics 416 1964 4 5 5 Physics class exams and notes, part 1 1951

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Description Date(s)

Series Box Folder 4 5 6 Physics class exams and notes, part 2 1951

Box 6 4 6 1 Class exams and notes for Physics 322 and Physics 354 1955-1962 4 6 2 Physics 354 notes 1955-1956 4 6 3 Physics 355 notes undated 4 6 4 Physics class notes and papers, part 1 1941 4 6 5 Physics class notes and papers, part 2 1941 4 6 6 Class exams and notes for Physics 380 1934-1965

Box 7 4 7 1 Prisms 9-1-3. Physics 315 class exams and notes, part 1 1963-1965 4 7 2 Prisms 9-1-3. Physics 315 class exams and notes, part 2 1963-1965 4 7 3 Notes on Rojansky undated 4 7 4 Notes on Rojansky and Houston undated 4 7 5 Notes on Houston and S. F. undated 4 7 6 Correspondence about PhD dissertations and translations, notes and 1968 corrections for physics essays.

Subseries 4C: Physics Research Box 8 4 8 1 Book reviews by J. Rud Nielsen and lists of Nielsen’s publications 1947-1955 4 8 2 Hydrocarbon Research. Report of the Committee on Physical and 1944 Chemical Properties of Hydrocarbons and Other Petroleum Products 4 8 3 Spectroscopy as a Possible Tool in Petroleum Chemistry 1941 4 8 4 Spectroscopy and Thermodynamics 1940 4 8 5 Translations of two papers by Heisenberg: “On the History of the 1938 Physical Description of Nature” and “Recent Changes in the Foundations of Physical Science.” 4 8 6 List of publications by J. Rud Nielsen undated 4 8 7 Propanes 1950-1961 4 8 8 Notes to Winston and Halford’s “Motions of Molecules in Condensed undated Systems.” 4 8 9 Scattering of Light from High Polymers undated 4 8 10 Free radicals 1956-1958 4 8 11 Theory of Scattering undated 4 8 12 Nuclear Magnetic Resonance undated 4 8 13 Density Matrix undated 4 8 14 Irreversible Thermodynamics 1964

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Description Date(s)

Series Box Folder 4 8 15 Purity of Spectrum Influence of Slit Width on Intensity Distribution in undated Spectral Lines 4 8 16 Correction for Finite Resolution Continuous Spectra undated 4 8 17 Slit - Curvature undated

Box 9 4 9 1 Paschen: Correction of Energy Curves undated 4 9 2 Mass spectrographs 1943 4 9 3 Vibrational Spectra of Linear Polymers 1960 4 9 4 Shape of Absorption Lines (Infrared) Intensities 1938-1940 4 9 5 Raman Technique undated 4 9 6 Space Groups etc. undated 4 9 7 Phillips Petroleum Company reports 1955-1960 4 9 8 Crystal Structure 1930-1938 4 9 9 Møller undated 4 9 10 Schweber undated 4 9 11 Bjorken and Drell Q. Mech undated 4 9 12 Hamermesh undated 4 9 13 Carlton W. Berenda’s “The Determination of Past by Future Events” 1947 and works by Heisenberg, Einstein, and Nielsen. 4 9 14 Notebooks and loose notebook pages with manuscript notes by 1933-1939 Nielsen. 4 9 15 “Reciprocal Relations in Irreversible Processes,” by C. M. Sliepcevich undated and H. T. Hashemi and related materials. 4 9 16 Nomenclature for Polyatomic Spectra by R.S. Mulliken at the 1954 University of Chicago 4 9 17 Research notes on chemical compounds. undated 4 9 18 University of Oklahoma Research Institute annual report 1973

Box 10 4 10 1 Lists of scientific journal titles and available issues undated 4 10 2 Graphs of various compounds’ wavelength in microns undated 4 10 3 Derivation of the Kramers-Heisenberg Scattering Formula undated 4 10 4 Manifesto on Freedom of Science undated 4 10 5 Research notes undated 4 10 6 CG3-CF2H gas research notes undated 4 10 7 Research notes undated 4 10 8 Research notes and graphs of various compounds’ wavelength in undated microns

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Description Date(s)

Series Box Folder 4 10 9 Final Report on Work Supported by the National Science Foundation 1961 Grant NSF-G4368: Vibrational Spectra of Crystals and Polymers 4 10 10 Final Report on Work Supported by the National Science Foundation 1963 Grant NSF-G11960: Vibrational Spectra of Crystals and Polymers 4 10 11 Office of Naval Research Contract N7-onr-398 Task Order I NR 1950 019120. Spectroscopic Properties of Fluorocarbons and Fluorinated Hydrocarbons. Technical report and final report 4 10 12 Office of Naval Research Contract N7-onr-398, Task Order I. 1949 Spectroscopic Properties of Fluorocarbons Final Report 4 10 13 Deviations from Lambert's and Beer's Laws for Gases in the Infrared undated 4 10 14 Office of Naval Research Contract N7-onr-398, Task Order I. Status 1947-1948 reports 1947-1948

Box 11 4 11 1 Office of Naval Research Contract N7-onr-398, Task Order I. 1949 Spectroscopic Properties of Fluorocarbons, draft 4 11 2 Office of Naval Research Contract N7-onr-398, Task Order I. 1948-1950 Spectroscopic Properties of Fluorocarbons Technical Report 4 11 3 Office of Naval Research Contract N7-onr-398, Task Order I. 1948-1950 Spectroscopic Properties of Fluorocarbons Technical Report 4 11 4 Spectroscopic Properties of Fluorocarbons and Fluorinated 1965 Hydrocarbons. Final Report, Contract No. AT-(40-1)-1074 with the U.S. Atomic Energy Commission Division of Research 4 11 5 Spectroscopic Properties of Fluorocarbons and Fluorinated 1951 Hydrocarbons. First Progress Report, Contract No. AT-(40-1)-1074 with the U.S. Atomic Energy Commission Division of Research 4 11 6 Spectroscopic Properties of Fluorocarbons and Fluorinated 1951 Hydrocarbons First Progress Report, Contract No. AT-(40-1)-1074 with the U.S. Atomic Energy Commission Division of Research 4 11 7 Office of Naval Research Contract N7-onr-398. Spectroscopic 1947 Properties of Fluorocarbons First Progress Report 4 11 8 Spectroscopic Properties of Fluorocarbons and Fluorinated 1962 Hydrocarbons Twelfth Progress Report. Contract No. AT-(40-1)-1074 with the U.S. Atomic Energy Commission Division of Research

Box 12 4 12 1 Analysis of Nitroparaffin Mixtures by Means of their Infrared undated Absorption Spectra. University of Oklahoma Research Institute 4 12 2 Spectroscopic Properties of Fluorocarbons and Fluorinated 1949 Hydrocarbons. Naval Research Laboratory. NRL Report 3567 Final Report on Project NR019-120 Contract N7-onr-398-T.O.1

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Description Date(s)

Series Box Folder 4 12 3 University of Oklahoma Research Institute Project 87. Technical and undated summary reports. Office of Naval Research, Project Number NR 061 078, Contract Number N-onr-982(02) 4 12 4 Spectroscopic Properties of Fluorocarbons and Fluorinated 1956 Hydrocarbons Sixth Progress Report. Contract No. AT-(40-1)-1074 with the U.S. Atomic Energy Commission Division of Research. 4 12 5 Spectroscopic Properties of Fluorocarbons and Fluorinated 1954 Hydrocarbons Fourth Progress Report. Contract No. AT-(40-1)-1074 with the U.S. Atomic Energy Commission Division of Research 4 12 6 Spectroscopic Properties of Fluorocarbons and Fluorinated 1955 Hydrocarbons Fifth Progress Report. Contract No. AT-(40-1)-1074 with the U.S. Atomic Energy Commission Division of Research 4 12 7 Photographs (26) of infrared spectrometer built for the Naval 1942-1943 Research Institute 4 12 8 An unused 1974 American Physical Society calendar, and blank graph 1974 paper

Box 13 4 13 1 Research and bibliographic notes on index cards (boxed) undated

Subseries 4D: Research on Niels Bohr 4 13 2 Research copies, Royal Danish Academy of Sciences and Letters undated 4 13 3 Research notes, translations, and copies of Bohr letters undated 4 13 4 English translation of Niels Bohr’s dissertation, “Studies on the 1911 Electron Theory of Metals.” 4 13 5 Page proofs of NBCW Vol. 1 1969 4 13 6 Photocopied notes titled "Excerpts" and "Chronology." undated 4 13 7 Transcription of letter excerpts titled “Breve for Niels Bohr til Harald 1909-1920 Bohr.” 4 13 8 English translation, Physics Prize Problem for 1905 undated 4 13 9 English translation, Addendum to Physics Prize Problem undated 4 13 10 Manuscript chapter drafts NBCW, part 1 undated 4 13 11 Manuscript chapter drafts NBCW, part 2 4 13 12 Typed chapter drafts NBCW, part 1 undated 4 13 13 Typed chapter drafts NBCW, part 2 4 13 14 Vol. 1 NBCW microfilm: research copies of Bohr letters undated 4 13 15 Photocopy of Bohr’s “Determination of the Surface-Tension of Water undated by the Method of Jet Vibration.” 4 13 16 Erik Rüdinger correspondence NBCW 1973-1979 4 13 17 Mrs. S. Hellmann correspondence NBCW 1972-1978

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Description Date(s)

Series Box Folder

Box 14 4 14 1 Aage Bohr correspondence NBCW 1975-1978 4 14 2 L. Rosenfeld and others correspondence NBCW 1966-1974 4 14 3 Klaus Stoltzenburg correspondence NBCW 1975 4 14 4 Brookes Spencer correspondence NBCW 1970-1973 4 14 5 Ulrich Hoyer correspondence NBCW 1973-1975 4 14 6 North-Holland Publishing Company NBCW correspondence 1974-1977 4 14 7 Typed copy of address given in 1925 by Professor Knudsen at award undated of Oersted Medal to Niels Bohr 4 14 8 Manuscript chapter drafts NBCW: translations undated 4 14 9 Manuscript chapter drafts NBCW: chapter 5, periodic table undated 4 14 10 Manuscript chapter drafts NBCW: translations undated 4 14 11 Manuscript chapter drafts NBCW: translations of lectures undated 4 14 12 Manuscript chapter drafts NBCW: translations of lectures undated 4 14 13 Manuscript chapter drafts NBCW: translations of letters undated 4 14 14 Manuscript chapter drafts NBCW: translations of lectures undated

Box 15 4 15 1 Manuscript chapter drafts NBCW: translations of lectures undated 4 15 2 Typed drafts for Vol. 2 NBCW, part 1 undated 4 15 3 Typed drafts for Vol. 2 NBCW, part 2 undated 4 15 4 Page proofs of NBCW Vol. 2 undated 4 15 5 Page proofs of NBCW Vol. 2 undated 4 15 6 Page proofs of NBCW Vol. 2 undated 4 15 7 Page proofs of NBCW Vol. 2 undated

Box 16 4 16 1 Notes pertaining to Introduction to Vol. 3 NBCW undated 4 16 2 Page proofs Vol. 3 NBCW pp. 605-692 B undated 4 16 3 Drafts and copies: Solvay Report 1921 French translation, and 1921 Ehrenfest paper discussion 4 16 4 Research notes and drafts for Vol. 3 NBCW undated 4 16 5 Drafts for Vol. 3 NBCW undated 4 16 6 Drafts for Vol. 3 NBCW undated 4 16 7 Drafts for Vol. 3 NBCW 4 16 8 Drafts for Vol. 3 NBCW: Application of Quantum Theory to Atomic 1972 Problems in General

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Description Date(s)

Series Box Folder 4 16 9 Part 4 On the Constitution of Atoms and Molecules undated 4 16 10 Early draft of introduction to Vol. 3 of NBCW undated 4 16 11 Page proofs of Vol. 3 NBCW 1974

Box 17 4 17 1 Page proofs of Vol. 3 NBCW 1974 4 17 2 Page proofs of Vol. 3 NBCW 1974 4 17 3 Page proofs of Vol. 3 NBCW 1974 4 17 4 Research notes for Vol. 3 of NBCW undated 4 17 5 Page proofs of Vol. 3 pp. 1-301 B NBCW part 1 undated 4 17 6 Page proofs of Vol. 3 pp. 1-301 B NBCW part 2 undated 4 17 7 Page proofs of Vol. 3 pp. 303-601 B NBCW part 1 undated 4 17 8 Page proofs of Vol. 3 pp. 303-601 B NBCW part 2 undated 4 17 9 Drafts of Index to Vol. 3 NBCW 1975

Box 18 4 18 1 Draft of Index to Vol. 3 NBCW undated 4 18 2 Draft of Errata to Vol. 3 NBCW undated 4 18 3 Page proofs of introduction NBCW undated 4 18 4 Research notes and calculations: Walter Heitler undated 4 18 5 Research copies of Bohr letters and translations undated 4 18 6 Research copies of incomplete Bohr letters undated 4 18 7 Research copies of 1924 Bohr letters undated 4 18 8 Research copies of 1923 Bohr letters undated 4 18 9 Research copies of 1922 Bohr letters undated 4 18 10 Research copies of 1921 Bohr letters undated 4 18 11 Research copies of 1920 Bohr letters undated 4 18 12 Research copies of 1918, 1919 Bohr letters undated 4 18 13 Research copies of Bohr letters for Vol. 4 NBCW undated 4 18 14 Chapter drafts on Bohr letters of 1917-1925 undated 4 18 15 Manuscript draft of Line Spectra and Atomic Structure for NBCW undated

Box 19 4 19 1 Drafts and proofs for Vol. 4 B NBCW editing draft copy and index undated copy, part 1 4 19 2 Proofs for Vol. 4 B NBCW editing draft copy and index copy, part 2 undated 4 19 3 Proofs for Vol. 4 B: NBCW VIII. Seven Lectures on the Theory of Atomic 1975 Structure translation

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Description Date(s)

Series Box Folder 4 19 4 Photocopied transcriptions of selected Bohr letters undated 4 19 5 Draft of Errata Vol. 1 NBCW, with publisher's correspondence 1972 4 19 6 Photocopied transcriptions of selected Bohr letters undated 4 19 7 Photocopied journal articles for research on Bohr undated 4 19 8 Draft translation: Seven Lectures on the Theory of Atomic Structure, undated Gottingen, June 1922 4 19 9 Institut International de Physique Solvay. Atomes et Electrons 1923 rapports et discussions du Conseil de Physique (1921) 4 19 10 Om Atomernes Bygning, Niels Bohr. Les Prix Nobel en 1921-1922 1923 4 19 11 Research notes and draft translation: X-Ray Spectra and the Periodic undated System of the Elements

Box 20 4 20 1 Miscellaneous fragments of drafts and translations for NBCW undated 4 20 2 Photocopied translation of “X-ray Spectra and the Periodic System of undated the Elements” by Bohr and Coster 4 20 3 Photocopied translation of “On the Explanation of the Periodic undated System.” 4 20 4 Drei Aufsatze uber Spektren und Atombau (1922) and “Der Bau der 1922 Atome und die physikalischen…” by Bohr, with notes 4 20 5 Photocopied letters to the editor in Nature (1921) by Bohr undated 4 20 6 Photocopied “Constitution of Atoms” with notes undated 4 20 7 Photocopied “On the Elements within the Second Period of the undated Periodic System,” and “The Correspondence Principle,” with notes 4 20 8 Photocopied “Helium. Atomic Theory and Periodic System” with notes 4 20 9 Translation draft, “Line Spectra and Atomic Structure.” 4 20 10 Draft, Rudolph Minkowski's notes on Bohr lectures from 1922 in 1962 Gottingen 4 20 11 Nielsen’s draft notes for organization of Vol. 4 NBCW 1974 4 20 12 Translation of “On Our Knowledge of (the) Atoms,” and “Some undated Considerations about the Constitution of Atoms.” 4 20 13 Our Present Knowledge of Atoms undated 4 20 14 Photocopy of manuscript draft, Physical Society 15 Dec 20 undated 4 20 15 Translation of lecture delivered 15 Dec 1920, Physical Society of undated Copenhagen 4 20 16 Brief extract of contents of the second half of Professor Bohr's report undated in Solvay 1921 4 20 17 Photocopied manuscript draft: NBCW Chapter 5 On the General undated Interpretation of the Periodic System

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Description Date(s)

Series Box Folder 4 20 18 Typed draft: NBCW Chapter 5 On the General Interpretation of the undated Periodic System

Box 21 4 21 1 Research notes with photocopies and translations of Bohr letters undated 4 21 2 Page proofs for Vol. 4 B NBCW: XII. Line Spectra and Atomic Structure 1975 4 21 3 Page proofs for Vol. 4 B NBCW: Part 2 Inventory of MSS, XII. Index 4 21 4 Manuscript draft of Introduction, NBCW undated 4 21 5 Det Skønne København . V. Pios Boghandel. Povl Branner. Nørregade, 1917 København, 1917 (Beautiful Copenhagen) 4 21 6 English translations of letters between Bohr and Heisenberg undated 4 21 7 English translations of letters between Bohr and Heisenberg and undated copied drafts of “The Nature of Light” for NBCW

Box 22 4 22 1 Photocopied translation drafts of Bohr letters and accompanying text, undated part 1 4 22 2 Photocopied translation drafts of Bohr letters and accompanying text, undated part 2 4 22 3 Second draft of Introduction to Vol. 5 NBCW – last sections undated 4 22 4 Research and manuscript drafts for NBCW including “The Nature of undated Light.” 4 22 5 Miscellaneous published research materials related to Bohr 1911-1975 4 22 6 Abhandlungen über Atombau aus den Jahren 1913-1916. Autorisierte 1921 deutsche Ubersetzung mit einem Geleitwort von N. Bohr von Dr. Hugo Stintzing 4 22 7 Book reviews for NBCW Vols. 1-4 1974-1978 4 22 8 Binder of research notes undated

Box 23 4 23 1 Manuscript chapter drafts for NBCW undated 4 23 2 Transcriptions and English translations of Bohr letters with Pauli undated 4 23 3 English translations of Bohr letters with Pauli undated 4 23 4 Transcriptions and English translations of various works by Bohr 1973-1975 4 23 5 English translations of works by Bohr, and printed research materials 1977-1979 4 23 6 English translation drafts of “On the Action of Atoms in Collisions.” undated 4 23 7 English translations of letters between Bohr and Werner Heisenberg undated (1925-1926)

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Description Date(s)

Series Box Folder 4 23 8 English translation of W. Heisenberg’s “On an Application of the undated Correspondence Principle to the Question of the Polarization of Fluorescence Light.”

Box 24 4 24 1 Reprints of Niels Bohr Memorial Session. Spring Meeting, American 1963 Physical Society Washington, D.C. April 22, 1963 4 24 2 English translation of a lecture delivered Dec. 15, 1920, before the undated Physical Society of Copenhagen; and an article on Norman Wright 4 24 3 English translation of “Remarks by Professor Robert Oppenheimer 1958 and Professor Niels Bohr at opening of Nuclear Physics Building.” 4 24 4 Figures 4-7 photographs and captions undated 4 24 5 Niels Bohr 1885-7. Oktober-1955. En Billedbiografi med Indledning af 1955, 1963 Professor, Dr. phil. Sven Werner (1955); and Niels Bohr Et Mindeskrift, Fysisk Tidsskrift (1963) 4 24 6 Niels Bohr and the Development of Physics edited by W. Pauli 1955 4 24 7 On the Constitution of Atoms and Molecules by Niels Bohr 1963

Box 25 4 25 1 Reprints and publications by and about Niels Bohr 1925-1957 4 25 2 “Uber die Serienspektra der Elemente” by Niels Bohr, Zeitschrift für 1920 Physik, Vol. 2, 1920. Page proofs corrected by Bohr 4 25 3 Livs og liv by Niels Bohr, Saertryk Naturens Verden, v. 17, 1933. Three 1933 copies of page proof, variously annotated. 4 25 4 Livs og liv by Niels Bohr. Three copies of page proof, variously 1933 annotated. 4 25 5 Atomic theory and the description of nature by Niels Bohr. 1933 Cambridge, University Press, 1933. Corrected page proofs. 4 25 6 Typed copy of “Causality and Complementarity” by Niels Bohr 1936 4 25 7 Photocopies of articles and reprints by Bohr 1925-1947 4 25 8 Photocopies of articles and reprints by Bohr 1941-1961 4 25 9 Commemoration of the Fiftieth Anniversary of Niels Bohr's First 1963 Papers on Atomic Constitution, held in Copenhagen on 8-15 July, 1963. Session on Cosmos and Life. Institute for Theoretical Physics, University of Copenhagen. 4 25 10 Photocopy of “Unsere Heutige Kenntnis vom Atom” by Niels Bohr in 1973 Die Umschau, 1921 4 25 11 Niels Bohr's answer to the Stockholm appeal (1950); an article by 1945-1950 Bohr in The Times (1945) and a poem, “Les Cent Contre Einstein.” 4 25 12 Typescripts of “Science and Civilization,” by Niels Bohr in The Times 1945 (1945) and “A Challenge to Civilization,” by Niels Bohr (1945)

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Description Date(s)

Series Box Folder 4 25 13 “Address given at the Newton Tercentenary Celebration” by Niels 1946 Bohr. The Royal Society, London, July 1946.

Box 26 4 26 1 Photocopied articles and reprints by Bohr 1910-1922 4 26 2 Photocopied articles and reprints by Bohr 1910-1922 4 26 3 Checklist of sources for research on Bohr undated 4 26 4 Copy of a manuscript play that references Bohr, titled, Faust: Eine 1932 Historie, by Max Delbruck 4 26 5 On The Quantum Theory of Line-Spectra, Part 1, by Niels Bohr 1918 4 26 6 Photocopied articles and reprints by Bohr 1931-1933 4 26 7 Abhandlungen über Atombau aus den Jahren 1913-1916. Autorisierte 1921 deutsche Ubersetzung mit einem Geleitwort von N. Bohr von Dr. Hugo Stintzing 4 26 8 Photocopy of “On the Application of the Quantum Theory to Periodic 1916 Systems” in The London, Edinburgh, and Dublin Philosophical Magazine and Journal of Science 4 26 9 Photocopied articles by Bohr 1923-1939 4 26 10 Photocopied articles and reprints by Bohr 1929-1939 4 26 11 Lists of publications by Bohr undated

Box 27 4 27 1 Photocopied articles and reprints by Bohr 1935-1940 4 27 2 Negatives created from photographs held by Nielsen undated 4 27 3 “The Philosophy of Niels Bohr,” reprinted from Bulletin of the Atomic 1963 Scientists by Aage Petersen 4 27 4 Commemoration of the Fiftieth Anniversary of Niels Bohr's First 1963 Papers on Atomic Constitution held in Copenhagen on 8-15 July, 1963. Session on Elementary Particles. Institute for Theoretical Physics, University of Copenhagen 4 27 5 Photocopied articles by Bohr undated 4 27 6 Photocopied articles by Bohr undated 4 27 7 Studier over Metallernes Elektrontheori by Niels Bohr 1911 4 27 8 Photocopied articles and reprints by Bohr 1931-1932 4 27 9 Correspondence of Duane H.D. Roller and Erik Rüdinger about 1988 obtaining a copy of “Atoms and Human Knowledge.” 4 27 10 Draft bibliography master list of publications by Bohr undated 4 27 11 Typed copies of articles by Bohr 1945

Box 28

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Description Date(s)

Series Box Folder 4 28 1 List of visitors expected at the Niels Bohr Institute and Nordita 1972 4 28 2 List of Bohr manuscripts on microfilm, no. 9, 10, 11 undated 4 28 3 Newspaper clippings about Bohr 1951-1974 4 28 4 Newspaper clippings about Bohr 1937-1963 4 28 5 Newspaper clippings about Bohr 1954-1963 4 28 6 Niels Bohr Institute publications about Bohr 1965-1971 4 28 7 American Institute of Physics list of Niels Bohr Library Acquisitions for 1967 January - June 1967 4 28 8 Nielsen’s review of S. Rozental’s 1967 book, Niels Bohr: His Life and circa 1967 Work 4 28 9 July 1967 issue of the Center for History and Philosophy of Physics 1967 newsletter that mentions the Niels Bohr Library

Subseries 4E: Publications by J. Rud Nielsen (See also Box 49 for related oversize materials) 4 28 10 Publications by J. Rud Nielsen 1921-1930 4 28 11 Publications by J. Rud Nielsen 1925 4 28 12 Publications by J. Rud Nielsen 1926 4 28 13 Publications by J. Rud Nielsen 1927-1929 4 28 14 Publications by J. Rud Nielsen 1929

Box 29 4 29 1 Publications by J. Rud Nielsen 1930 4 29 2 Publications by J. Rud Nielsen 1930-1931 4 29 3 Publications by J. Rud Nielsen 1931 4 29 4 Publications by J. Rud Nielsen 1932 4 29 5 Publications by J. Rud Nielsen 1933 4 29 6 Publications by J. Rud Nielsen 1934 4 29 7 Publications by J. Rud Nielsen 1934 4 29 8 Publications by J. Rud Nielsen 1934-1938 4 29 9 Publications by J. Rud Nielsen 1939

Box 30 4 30 1 Publications by J. Rud Nielsen 1942 4 30 2 Publications by J. Rud Nielsen 1942 4 30 3 Publications by J. Rud Nielsen 1943 4 30 4 Publications by J. Rud Nielsen 1943 4 30 5 Publications by J. Rud Nielsen 1944

16

Description Date(s)

Series Box Folder 4 30 6 Publications by J. Rud Nielsen 1945-1946 4 30 7 Publications by J. Rud Nielsen 1946 4 30 8 Publications by J. Rud Nielsen 1946-1947

Box 31 4 31 1 Publications by J. Rud Nielsen 1947-1948 4 31 2 Publications by J. Rud Nielsen 1949 4 31 3 Publications by J. Rud Nielsen 1949 4 31 4 Publications by J. Rud Nielsen 1949 4 31 5 Publications by J. Rud Nielsen 1949 4 31 6 Publications by J. Rud Nielsen 1950 4 31 7 Publications by J. Rud Nielsen 1950 4 31 8 Publications by J. Rud Nielsen 1950

Box 32 4 32 1 Publications by J. Rud Nielsen 1950 4 32 2 Publications by J. Rud Nielsen 1950 4 32 3 Publications by J. Rud Nielsen 1950 4 32 4 Publications by J. Rud Nielsen 1952 4 32 5 Publications by J. Rud Nielsen 1952 4 32 6 Publications by J. Rud Nielsen 1952 4 32 7 Publications by J. Rud Nielsen 1952 4 32 8 Publications by J. Rud Nielsen 1952 4 32 9 Publications by J. Rud Nielsen 1953

Box 33 4 33 1 Publications by J. Rud Nielsen 1953 4 33 2 Publications by J. Rud Nielsen 1953 4 33 3 Publications by J. Rud Nielsen 1953 4 33 4 Publications by J. Rud Nielsen 1953 4 33 5 Publications by J. Rud Nielsen 1953 4 33 6 Publications by J. Rud Nielsen 1953-1955

Box 34 4 34 1 Publications by J. Rud Nielsen 1954 4 34 2 Publications by J. Rud Nielsen 1954 4 34 3 Publications by J. Rud Nielsen 1955 4 34 4 Publications by J. Rud Nielsen 1955

17

Description Date(s)

Series Box Folder 4 34 5 Publications by J. Rud Nielsen 1956 4 34 6 Publications by J. Rud Nielsen 1956 4 34 7 Publications by J. Rud Nielsen 1957 4 34 8 Publications by J. Rud Nielsen 1957

Box 35 4 35 1 Publications by J. Rud Nielsen 1957 4 35 2 Publications by J. Rud Nielsen 1957 4 35 3 Publications by J. Rud Nielsen 1957 4 35 4 Publications by J. Rud Nielsen 1957 4 35 5 Publications by J. Rud Nielsen 1959-1960 4 35 6 Publications by J. Rud Nielsen 1960 4 35 7 Publications by J. Rud Nielsen 1960-1961

Box 36 4 36 1 Publications by J. Rud Nielsen 1961 4 36 2 Publications by J. Rud Nielsen 1961 4 36 3 Publications by J. Rud Nielsen 1961 4 36 4 Publications by J. Rud Nielsen 1962 4 36 5 Publications by J. Rud Nielsen 1962 4 36 6 Publications by J. Rud Nielsen 1963 4 36 7 Publications by J. Rud Nielsen 1963

Box 37 4 37 1 Publications by J. Rud Nielsen 1964-1965 4 37 2 Publications by J. Rud Nielsen 1965 4 37 3 Publications by J. Rud Nielsen 1965-1966 4 37 4 Publications by J. Rud Nielsen 1966 4 37 5 Publications by J. Rud Nielsen 1966-1967

Series 5: Collected Publications Subseries 5A: Periodicals 5 37 6 Newspaper clippings and articles about J. Robert Oppenheimer 1954 5 37 7 Articles about J. Robert Oppenheimer 1948-1954 5 37 8 Newspaper clippings about President Nixon and Watergate 1975 5 37 9 Reprints from the Astronomical Journal of the OU Observatory 1950-1960

Box 38

18

Description Date(s)

Series Box Folder 5 38 1 Collected publications by other authors, A 1947-1968 5 38 2 Collected publications by other authors, B 1926-1967 5 38 3 Collected publications by other authors, C 1919-1968 5 38 4 Collected publications by other authors, D 1917-1966

Box 39 5 39 1 Collected publications by other authors, E 1919-1960 5 39 2 Collected publications by other authors, E 1916-1961 5 39 3 Collected publications by other authors, F 1896-1961 5 39 4 Collected publications by other authors, F 1912-1954 5 39 5 Collected publications by other authors, G 1913-1961

Box 40 5 40 1 Collected publications by other authors, G 1916-1965 5 40 2 Collected publications by other authors, H 1933-1974 5 40 3 Collected publications by other authors, H 1928-1968 5 40 4 Collected publications by other authors, H 1905-1960

Box 41 5 41 1 Collected publications by other authors, I 1926-1969 5 41 2 Collected publications by other authors, J 1932-1962 5 41 3 Collected publications by other authors, K 1912-1968 5 41 4 Collected publications by other authors, K 1905-1963 5 41 5 Collected publications by other authors, L 1911-1968 5 41 6 Collected publications by other authors, L 1911-1956

Box 42 5 42 1 Collected publications by other authors, M 1946-1967 5 42 2 Collected publications by other authors, M 1929-1965 5 42 3 Collected publications by other authors, M 1935-1963 5 42 4 Collected publications by other authors, M 1909-1968

Box 43 5 43 1 Collected publications by other authors, M 1861-1961 5 43 2 Collected publications by other authors, M 1956-1961 5 43 3 Collected publications by other authors, N 1889-1967 5 43 4 Collected publications by other authors, N 1901-1958 5 43 5 Collected publications by other authors, O 1935-1967

19

Description Date(s)

Series Box Folder

Box 44 5 44 1 Collected publications by other authors, P 1918-1967 5 44 2 Collected publications by other authors, Q 1939 5 44 3 Collected publications by other authors, R 1928-1966 5 44 4 Collected publications by other authors, R 1920-1962 5 44 5 Collected publications by other authors, R 1913-1965

Box 45 5 45 1 Collected publications by other authors, S 1919-1968 5 45 2 Collected publications by other authors, S 1889-1961 5 45 3 Collected publications by other authors, S 1912-1962 5 45 4 Collected publications by other authors, S 1912-1953

Box 46 5 46 1 Collected publications by other authors, T 1921-1963 5 46 2 Collected publications by other authors, T 1932-1952 5 46 3 Collected publications by other authors, T 1930-1954 5 46 4 Collected publications by other authors, U 1945 5 46 5 Collected publications by other authors, V 1898-1963

Box 47 5 47 1 Collected publications by other authors, W 1909-1967 5 47 2 Collected publications by other authors, W 1909-1963 5 47 3 Collected publications by other authors, Y 1926-1952 5 47 4 Collected publications by other authors, Z 1928-1947 5 47 5 Collected publications by other authors, miscellaneous 1926-1969

Subseries 5B: Books Box 48 5 48 1 From Novalis to Nietzsche edited by Sol Liptzin. Ownership signature 1952 by Mary Wilson (née Nielsen) 5 48 2 English Writers by Tom Peete Cross, et al.. Ownership signature of 1940 Patricia Standley. 5 48 3 Literature and Life in America by Dudley Miles and Robert C. Pooley. 1943 Ownership signatures of Mary Nielsen, Tom Nielsen 5 48 4 Meine Samtlichen Werke by Leo Slezak, edited by Roy Temple House 1946 and Johannes Malthaner. Ownership signature of T. R. Nielsen

20

Description Date(s)

Series Box Folder 5 48 5 Graded German Reader for Beginners by Edwin H. Zeydel. Ownership 1946 signature of T. R. Nielsen 5 48 6 The Bluejackets’ Manual, United States Naval Institute. Ownership 1944 signature of Thomas R. Nielsen 5 48 7 Drei Kameraden by Eric Remarque, edited by Waldo C. Peebles 1941 5 48 8 Besættelsens Fem Onde Aar: Politiske Strejflys over Udviklingen fra 9. 1945 April 1940 til 5. Maj 1945, af Redaktør H. Hansen 5 48 9 Stærstikkeren by C. M. Norman-Hansen. Inscription to Gertrude 1902 Siegmund by the author

Box 49 (Flat Oversize) 3 49 1 Poster for Niels Bohr lecture at OU, “Atoms and Human Knowledge.” 1957 3 49 2 Blank printed sheet for signatures expressing gratitude for Nielsen's 1965 41 years of service at OU 3 49 3 Poster for Gerhard Herzberg lecture at OU, “Spectroscopy and 1954 Molecular Structure.” 3 49 4 The Daily Oklahoman Magazine December 8, 1957 with article on 1957 Niels Bohr’s visit to OU 4 49 5 Reprints of “Application of Spectroscopy in the Petroleum Industry,” undated by Nielsen

Series 6: Printing Blocks Box 50 6 50 1 Five printing blocks labeled Optical Society undated 6 50 2 Two printing blocks from Lancaster Press Inc., cuts, June 1947 Journal 1947 of the Optical Society of America. 6 50 3 Two printing blocks from Lancaster Press Inc., cuts, January 1948 1948 Journal of Chemical Physics 6 50 4 One printing block from Lancaster Press Inc., cut, April 1950 Journal 1950 of Chemical Physics 6 50 5 One printing block from Lancaster Press Inc., cut, April 1950 Journal 1950 of Chemical Physics

Box 51 6 51 1 Nine printing blocks from Lancaster Press Inc., cuts, April 1947 1947 Journal of the Optical Society of America 6 51 2 Two printing blocks from Lancaster Press Inc., cuts, May 1950 Journal 1950 of Chemical Physics 6 51 3 Two printing blocks from Lancaster Press Inc., cuts, June 1950 Journal 1950 of Chemical Physics

21

Description Date(s)

Series Box Folder Box 52 6 52 1 Twenty-two printing blocks, unlabeled undated 6 52 2 Two printing blocks from Lancaster Press Inc., cuts, July 1950 Journal 1950 of the Optical Society of America 6 52 3 One printing block from Lancaster Press Inc., cut, November 1950 1950 from Journal of Chemical Physics 6 52 4 One printing block from the Yerkes Observatory undated

Description Date(s)

Series Box Item Series 7: Glass Slides Box 53 7 53 1.01A Acceleration due to gravity at various points on earth's surface 7 53 1.01B Average densities of a few substances 7 53 1.02C Force Pump 7 53 1.02D Pressure Gauges 7 53 1.02E Lift Pump 7 53 1.02G A radian 7 53 1.02H Force - Lemon's Chapter Heading 7 53 1.02I Galileo performed experiments 7 53 1.02J The scientific method before Galileo 7 53 1.03A Linear and Surface Measurement 7 53 1.03C Balances, Equal Arm 7 53 1.03D Linear and Angular Measurement 7 53 1.03E Standards of Mass 7 53 1.03F Summary of Quantities and Units 7 53 1.03G Time Measurement 7 53 1.03H Spring Balances, Dynamometers and Torsion Apparatus 7 53 1.03I International Bureau of Weights and Measures 7 53 1.04A Forces on a kite 7 53 1.04B Sailboat tacking 7 53 1.04C Forces on an airplane wing 7 53 1.04D Forces on a canal boat 7 53 1.04E Vector diagram of forces when a terminal vel has been reached 7 53 1.04F Vector forces and Solution Vector Polygon 7 53 1.04H Saunders analysis of nail pulling 7 53 1.04I The desirable way to pull nail 7 53 1.04J Best way to pull nail 7 53 1.05A Principle of Moments

22

Description Date(s)

Series Box Item 7 53 1.05B Platform Scales 7 53 1.05C Balances, Unequal Arms 7 53 1.05D Experimental values of Forces and Lever arms 7 53 1.05E Equilibrium under balanced couples 7 53 1.05F Resultant of parallel forces 7 53 1.05G Experimental arrangement for studying turning effect of a force 7 53 1.05H Terms describing action of a force upon a body 7 53 1.05I Wheel and Axel Balanced Torques 7 53 1.06B Acceleration Measurement - Speedometer and Clock 7 53 1.06C Acceleration 7 53 1.06D Distance required for stopping 7 53 1.06F An accelerator 7 53 1.06I [untitled direction and speed velocity diagram]. Duplicate. 7 53 1.06I [untitled direction and speed velocity diagram]. Duplicate. 7 53 1.07A Equality of action and reaction 7 53 1.07B Demonstration of the second law of motion 7 53 1.07C How the 'lift sensation' arises 7 53 1.07D Conservation of Momentum, man walks off cart 7 53 1.07E Conservation of Momentum, runner stops on truck 7 53 1.07F Conservation of Momentum, runner passes over truck 7 53 1.07G Inertia and Adhesion 7 53 1.07H Ballistic Pendulum 7 53 1.07I Newton's first law 7 53 1.07J Newton's second law 7 53 1.07K Newton's third law 7 53 1.07L Recoiling rails 7 53 1.07M Elastic impact-masses unequal 7 53 1.07N Flash stereo photographs of a pendulum 7 53 1.07O Ballistic pendulum 7 53 1.07P Horizontal and Vertical Distances for Falling Body (10 second s- typed). Duplicate. 7 53 1.07P Horizontal and Vertical Distances for Falling Body (10 seconds - typed). Duplicate. 7 53 1.07Q Variation in speed of fall (10 seconds - typed) 7 53 1.07R Variation in speed of fall (10 seconds - typed) 7 53 1.07S Distances down inclined planes in consecutive intervals 7 53 1.07T Objects sliding down plane 7 53 1.07U Galileo's experiment 7 53 1.07V Forces on a falling feather 7 53 1.07W Momentum vectors when the rails recoil 7 53 1.07X Collision of balls of equal mass 7 53 1.07Y Force vectors, wagon on slope

23

Description Date(s)

Series Box Item 7 53 1.07Z Newton's Third Law - Lemon's Chapter Heading 7 53 1.07AA Motion picture of action on glare of ice 7 53 1.07AB F = MV/T 7 53 1.07AC Natural and unnatural motion 7 53 1.07AD Graph of Time vs. Velocity of a Failing Parachute 7 53 1.07AE Data obtained with a falling tuning fork 7 53 1.07AF Force - Lemon's Chapter Heading 7 53 1.07AG F = M;A 7 53 1.07AH Fundamental equation of Mechanics

Box 54 7 54 1.08A Street car rounding a curve 7 54 1.08B Centrifugal pump 7 54 1.08C Action and reaction when a weight is swung round. Illustrating the naming of forces 7 54 1.08D Second Law of Motion and Trajectory of Bullet 7 54 1.08E Independence of velocities - photo of apparatus and record 7 54 1.08F Trajectory of the German Long- Range Gun 7 54 1.08G A jet of freely falling water Free flight. 7 54 1.08G A jet of freely falling water 7 54 1.08H Time of fall unaffected by horizontal component of velocity 7 54 1.08I Body falls from mast of moving ship. Referred to ground 7 54 1.08J Horizontal and vertical distances for falling bodies 7 54 1.08K Horizontal distances traveled during successive seconds. (10 seconds) 7 54 1.08N Body drops from a moving ship referred to ship 7 54 1.08P Forces acting on an automobile on a properly banked curve 7 54 1.08Q Uniform angular velocity. Velocity and acceleration of a body moving in circle at a uniform speed 7 54 1.08R Acceleration of a body moving in circle with constant speed 7 54 1.08S Path of an airplane making loop in still air 7 54 1.08T Drop bombs in place on airplane 7 54 1.08U Demolition drop bombs 7 54 1.08V Trajectory of bomb dropped from an airplane 7 54 1.08W Camera used to photograph bomb trajectories 7 54 1.08X Trajectory of Bomb dropped from airplane 7 54 1.08Y Path of a projectile 7 54 1.09A Motion of rotation 7 54 1.09C Simple pendulum 7 54 1.09D Uniform circular motion 7 54 1.10A Alterations in the shape of a body give rise to changes in its rate of rotation

24

Description Date(s)

Series Box Item 7 54 1.10C Moments of inertia of a man in 3 different positions 7 54 1.10D Gyroscope 7 54 1.10F Precession of earth's axis 7 54 1.10G Data on compound pendulums 7 54 1.11A Potential and Kinetic Energy, and Work 7 54 1.11B The Work Relation in the Use of a Lever 7 54 1.11D Energy transformations during fall 7 54 1.11E Bouncing ball. Pendulum 7 54 1.11F A friction brake 7 54 1.11H Work Lemon's Chapter Heading 7 54 1.11I W = FxS 7 54 1.11J A mosquito performs one erg of work 7 54 1.11K Energy potential 7 54 1.11L Power of Boy by Prony Brake 7 54 1.12A Friction experiment - effects of surfaces and speed 7 54 1.12B Friction experiment - effects of pressing force 7 54 1.12C Friction, useless 7 54 1.12D Friction, useful 7 54 1.12E Apparatus used to obtain data on friction 7 54 1.13B Screw - Principles and Examples 7 54 1.13C Pulleys, Gears and Winch 7 54 1.13D Wheel and Axle, Crank, Windlass and Capstan 7 54 1.13E Various Pulley Combinations 7 54 1.13F Work done on a pulley 7 54 1.13G The wedge 7 54 1.13H Classes of levers 7 54 1.13I The three classes of levers 7 54 1.13J Familiar applications of the lever 7 54 1.13K Familiar applications of the lever 7 54 1.14A Data providing Hooke's Law 7 54 1.14B Two kinds of elasticity 7 54 1.15A Capillary tubes in water and in mercury 7 54 1.15B Finding surface tension with a balance 7 54 1.15C Surface tension. Action of a brush when placed in a liquid 7 54 1.15D Capillarity, Slide 1 7 54 1.15E Capillarity, Slide 2 7 54 1.15F Surface tension, Slide 1 7 54 1.15G Surface tension, Slide 2 7 54 1.15H The reason for surface tension 7 54 1.16A Hydraulic Pressure and Fluid Compression 7 54 1.16B Hydrostatic Pressure and Equilibrium 7 54 1.16C Tunnel Construction

25

Description Date(s)

Series Box Item 7 54 1.16D Hydrostatic Pressure and Buoyancy 7 54 1.16E Specific Gravity and Hydrometers 7 54 1.16F Measurement of pressure 7 54 1.16G Pressure same in all directions 7 54 1.16H Cartesian diver 7 54 1.16I The float of a battery hydrometer 7 54 1.16J The force on a dam 7 54 1.16K The Injector 7 54 1.16M The Hydraulic Press

Box 55 7 55 1.17A 3-car oil-electric train 7 55 1.17B Practical Applications of Siphons 7 55 1.17C Hydraulic Appliances and Waterworks 7 55 1.17D Varieties of Siphons 7 55 1.17E Water and Wheels and Turbine 7 55 1.17G Ball on water jet 7 55 1.17H Bernoulli effect 7 55 1.17I Vortices behind airplane - (to accompany article "Speed" by B.M. Jones) 7 55 1.17J Streamline flow - (to accompany article "Speed" by B.M. Jones) 7 55 1.17K Air currents about airplane wings (to accompany article "Speed" by B.M. Jones) 7 55 1.17L A Jet Pump 7 55 1.17M Resistance offered by the atmosphere to rods of different cross section 7 55 1.17N A simple automobile carburetor 7 55 1.17P A Lift Pump 7 55 1.18A Boyle's Law Apparatus 7 55 1.18B A McLeod Gauge 7 55 1.19 Aneroid barometer 7 55 1.19A Facts about our atmosphere 7 55 1.19C Gondola for Stratosphere 7 55 1.19D Century of Progress Stratosphere Balloon 7 55 1.19E Free Balloon for Stratosphere 7 55 1.19H Torricelli's experiment 7 55 1.19J Barometer and Elevation 7 55 1.19K Barometers and Balances 7 55 1.19L Lying balance 7 55 1.19M Balloon with gondola for exploring the Stratosphere 7 55 1.19N Maximum height of a mercury column 7 55 1.19O Barometer column supported

26

Description Date(s)

Series Box Item 7 55 1.19P Variation of Density Air and Water 7 55 1.19Q Balloon for stratosphere 7 55 1.19S Composition of air at sea level 7 55 1.19T Absolute humidity of saturated air 7 55 1.19U Gases in the atmosphere 7 55 1.19V Our two oceans 7 55 1.19W Differential barometer 7 55 1.19X The aneroid barometer 7 55 1.19Y Regardless of size, shape, or inclination of the tube, the mercury stands at the same vertical distance above that in dish 7 55 1.19Z Average temperature and pressure of the atmosphere in summer at latitude 45 degrees 7 55 1.19AA Hare's Apparatus 7 55 1.20B Harmonic analysis 7 55 1.21B Cavendish experiment; weights the earth 7 55 1.21C Gravitation and Center of Gravity 7 55 1.21D Cavendish experiment for weighing the earth 7 55 1.21E Sizes, masses and surface gravities in the Solar family 7 55 1.21F Water and earth tides 7 55 1.21G Strength of the earth's gravitational fields at distance of moon 7 55 1.21H Strength of gravitational field in Cavendish experiment 7 55 1.21I Strength of gravitational field at surface of the earth 7 55 1.21J What? No force of gravity? 7 55 1.21L Gravitational attractions 7 55 1.21M Gravity on the moon 7 55 1.21N Effect of distance on force of gravity 7 55 1.21O Kepler's Laws, Newton's law of gravitation 7 55 1.21P Major bodies of the solar system 7 55 1.21Q Facts concerning our solar system 7 55 1.21R Evolution of astronomy 7 55 1.21S Actual and predicted constants of the Orbit of Pluto 7 55 1.21T Cause of the phases of the moon 7 55 1.21U The cause of the seasons 7 55 1.21V A recent theory of the origin of the solar system 7 55 1.21W Collision theory of the production of the solar system 7 55 2.01A Bels and Decibels - Definition 7 55 2.01B Approximate noise intensities 7 55 2.01C Approximate noise intensities (continued) 7 55 2.02A Reflection and Refraction of Sound 7 55 2.02B Transmission of Sound and Limit of Hearing 7 55 2.02C March of Science in Sound Reproduction 7 55 2.02D Laboratory Sources of Sound

27

Description Date(s)

Series Box Item 7 55 2.02F The usual 'working' range of various voices 7 55 2.02G Curvature of Spherical Wave-front Reversed 7 55 2.02H Doppler effect - moving source 7 55 2.02I Doppler effect - moving observer 7 55 2.02J [untitled] 7 55 2.03A Schematic diagram of apparatus 7 55 2.03B Actual diagram of apparatus 7 55 2.03C Detail of light-spark terminals 7 55 2.03D Detail of sound-spark terminals, showing wave 7 55 2.03E Fig 4 7 55 2.03F Fig 5

Box 56 7 56 2.04B Longitudinal section of sound wave and spark gap 7 56 2.04C Sound wave just emerging 7 56 2.04D Sound wave about 7T after spark 7 56 2.04E Sound wave .0001 seconds after spark 7 56 2.04F Sound wave .00017 seconds after spark 7 56 2.04G Sound wave .0002 seconds after spark 7 56 2.04H Sound wave .00023 seconds after spark 7 56 2.04J Hot air about spark gap, sound wave gone 7 56 2.04K Plane reflector. Sound wave .00011 seconds after spark 7 56 2.04L Plane reflector. Sound wave .0002 seconds after spark 7 56 2.04M Cylindrical reflector. Reflected sound wave convergent 7 56 2.04N Sound wave reflected by cylindrical lens 7 56 2.04O Sulphur dioxide lens, refracted wave plane 7 56 2.04P Sulphur dioxide lens, refracted wave convergent 7 56 2.04Q Carbon dioxide lens, refracted wave divergent 7 56 2.04R Hydrogen lens, curvature increased 7 56 2.04S Parabolic reflector, reflected wave plane. Time = .00011 second 7 56 2.04T Parabolic reflector, reflected wave plane. Time = .00015 second 7 56 2.04U Parabolic reflector, reflected wave plane. Time = .00019 second 7 56 2.04V Elliptical reflector, spark at one focus, time = .00007 second 7 56 2.04W Elliptical reflector, reflected waves symmetrical 7 56 2.04X Elliptical reflector, reflected wave approaching focus 7 56 2.04Y Elliptical reflector, reflected wave at focus 7 56 2.04Z Plane Grating, time = .00013 second. Duplicate. 7 56 2.04Z Plane Grating, time = .00013 second. Duplicate. 7 56 2.04AA Plane Grating, time = .00016 second 7 56 2.04AB Plane Grating, time = .00021 second 7 56 2.04AC Plane Grating, time = .00024 second 7 56 2.04AD Cylindrical Grating, time = .00018 second. Duplicate.

28

Description Date(s)

Series Box Item 7 56 2.04AD Cylindrical Grating, time = .00018 second. Duplicate, broken. 7 56 2.04AE Cylindrical Grating, time = .00024 second 7 56 2.05A Ear receiving fundamental and two harmonics 7 56 2.05B Wave form for note of clarinet 7 56 2.05C Characteristics of sound of trumpet 7 56 2.05D Beats 7 56 2.05F Forms [missing label]. 7 56 2.05G Complex vibrations formed by two simple ones 7 56 2.05K Addition of harmonic wave forms with Frequencies 1;2;3, in phase. The Components 7 56 2.05L Addition of harmonic wave forms with Frequencies 1;2;3, in phase. First two combined 7 56 2.05M Addition of harmonic wave forms with Frequencies 1;2;3, in phase. All three combined 7 56 2.05N Addition of harmonic wave forms with Frequencies 1;2;3, out of phase. The Components 7 56 2.05O Addition of harmonic wave forms with Frequencies 1;2;3, out of phase. First two combined 7 56 2.05P Addition of harmonic wave forms with Frequencies 1;2;3, out of phase. All three combined 7 56 2.05Q [untitled] 7 56 2.05R [untitled] 7 56 2.05S [untitled] 7 56 2.05T [untitled] 7 56 2.05U [untitled] 7 56 2.07A Chaldni's Plates and Vibration 7 56 2.07B A few of the forms in which a string may vibrate 7 56 2.07C Amplitude vs. time. Duplicate. 7 56 2.07C Amplitude vs. time. Duplicate. 7 56 2.08A Laboratory Sources of Sound 7 56 2.08B The Mechanical Action of Violins 7 56 2.09A Interference of sound from paths of unequal length 7 56 2.09B Siren Disc (to accompany exp 2.09B) 7 56 2.11A Human Ear 7 56 2.11C Loudness level contours 7 56 2.11D Loudness vs. Loudness level 7 56 2.11F The audibility and feeling sound 7 56 2.12A Equally tempered scale 7 56 2.12B [untitled] 7 56 2.13A Partially assembled organ 7 56 3.02A Sources of Heat-Combustion 7 56 3.02B Electrical indication of temperature

29

Description Date(s)

Series Box Item 7 56 3.02D The Temperature Sense Weber's Law for sensation 7 56 3.03A Thermometer Scales Compared 7 56 3.03B Thermometers, slide 1 7 56 3.03C Air thermometer and Thermopile 7 56 3.03D Metallic Thermometer 7 56 3.03E Thermometers, slide 2 7 56 3.03F Centigrade - Fahrenheit with various temperatures shown 7 56 3.03G Temperatures of various objects 7 56 3.03H Various fixed points 7 56 3.03I Galileo's thermometer

Box 57 7 57 3.04A Calorimeters, slide 1 7 57 3.04B Calorimeters, slide 2 7 57 3.04C High specific heat of water not matched by water and alcohol 7 57 3.04F Variation of specific heat of Hydrogen with temperature 7 57 3.04G H = Mx Sp. Ht. X(T1 - T2) 7 57 3.05A Compensated balance wheel of a watch 7 57 3.05B Linear expansion 7 57 3.05C Gridiron pendulum compensated balance wheel thermostat 7 57 3.05D Some coefficients of linear expansion 7 57 3.05E Some coefficients of cubical expansion 7 57 3.05F Volume temperature for water, 0-10'c 7 57 3.05G Expansion and contraction of a bridge 7 57 3.05H Differential thermal expansion 7 57 3.05I Variation of pressure with temperature 7 57 3.05K Operation of the rocking post 7 57 3.06A Mercury diffusion pump 7 57 3.06B Fig. 109 Pressure of cup normal. 110. Pressure in cup increased. 111. Pressure in cup decreased 7 57 3.06C Observation on diffusion of gases 7 57 3.06D Observation on diffusion of gases 7 57 3.06E Boyle's law shown by apparatus 7 57 3.06G Figures relating to molecules 7 57 3.06H Our diffusion of gases apparatus 7 57 3.06I Molecular Velocities 7 57 3.06J Reversal of Momentum 7 57 3.06K Monatomic and diatomic molecules 7 57 3.06L Ideal process considered in deriving PV = RT 7 57 3.06M Ideal apparatus for showing relation between 2 specific heats of a gas 7 57 3.06O Molecular Quantities at 0 degrees and standard pressure

30

Description Date(s)

Series Box Item 7 57 3.07A Vapor pressure of liquids 7 57 3.07B Isothermals of carbon dioxide critical point tube 7 57 3.07C Effect of pressure on boiling point 7 57 3.07D Regelation 7 57 3.07E Temperature - pressure relation 7 57 3.07F The sling psychrometer 7 57 3.07G Relation of boiling point to pressure 7 57 3.07H Table of Boiling points 7 57 3.07I Dew Point Determination and Hygrometers 7 57 3.07J Bodily sensations depend upon humidity 7 57 3.07K Maintaining low temperatures 7 57 3.07L Heat of vaporization of water vs. heat capacity of iron 7 57 3.07M Heat of fusion of ice vs. thermal capacity of water 7 57 3.07N Three states of matter 7 57 3.07O The complete story of the heat necessary to raise the temperature of 100 grams of ice at -20 degrees Celsius changing it to steam at 150 degrees Celsius 7 57 3.07P Thermodynamic surface for ice, water, and steam 7 57 3.07Q Fridgeman's Five Formulas of Ice 7 57 3.07R Variation of Heat of Vaporization of CO2 with temperature 7 57 3.07Y P-V-T surface for d substance which expands upon freezing 7 57 3.07Z [untitled] 7 57 3.07AA [untitled] 7 57 3.07AB [untitled] 7 57 3.07AC [untitled] 7 57 3.07AD [untitled] 7 57 3.08A Hot water heating system 7 57 3.08B Hot air and ventilating system 7 57 3.08C Conductivity of Gasses 7 57 3.08D Conductivity of Solids 7 57 3.08E Various Methods of Heating the home 7 57 3.08F 6 rod conduction apparatus 7 57 3.09A Showing that a black body radiates better than a bright one 7 57 3.09B Black body radiation curves 7 57 3.10A Joule's apparatus for determining mechanical equivalent of heat 7 57 3.11A Hot air engine 7 57 3.11B Steam engine 7 57 3.11C Model of a steam engine 7 57 3.11F Indicator Diagram for a steam engine 7 57 3.11G The Ideal Carnot Engine 7 57 3.11H Carnot Cycle with steam as working substance

31

Description Date(s)

Series Box Item 7 57 3.11I Four Strokes of the Otto Engine 7 57 3.12A Diagram of a refrigerating machine 7 57 3.12B Artificial Refrigeration 7 57 3.12C Diagram of electric refrigerator for household use 7 57 3.12D Diagram of gas fired household refrigerator 7 57 3.13A Liquid air apparatus 7 57 3.13B Liquefaction of air

Box 58 7 58 4.02A [untitled] 7 58 4.02B Electric Bell 7 58 4.02C Dynamo and Motor Rules 7 58 4.02D Electrical indication of temperature 7 58 4.02E Circuit of our photoelectric cell and relay 7 58 4.02F Energy of electric and magnetic fields 7 58 4.02G Fields of force 7 58 4.02H Table of electrical units 7 58 4.02I Lines of B for uniformly magnetized bar 7 58 4.02J Lines of H for uniformly magnetized bar 7 58 4.02K Magnetization 7 58 4.03A Field of permanent magnet 7 58 4.03B Magnetic Needles and Compasses 7 58 4.03C Lines of force bunch through iron. Cooper and rubber have no appreciable effect. 7 58 4.03D The earth acts like a huge magnet 7 58 4.03E Horse shoe magnet with compass 7 58 4.03F The dip needle 7 58 4.03G Magnetism 7 58 4.03H Magnetic field - magnet 7 58 4.03I Magnetic field - N and S 7 58 4.03J Magnetic field - N and N 7 58 4.03K Magnetic field - S and S 7 58 4.03L Magnetic field - S with Iron 7 58 4.03M Magnetic lines within the Arctic Circle 7 58 4.03P Magnetic moment 7 58 4.04A [untitled] 7 58 4.04B Diagram of Wimshurst electrostatic machine 7 58 4.04C Belt of one of MIT's Van de Graaff Generators 7 58 4.04D MIT's Van de Graaff Generator 7 58 4.04E Gold leaf electroscope 7 58 4.04F Electrostatic Voltmeter 7 58 4.04G Practical paper condenser

32

Description Date(s)

Series Box Item 7 58 4.04H Variable air condenser 7 58 4.04I Faraday's Ice pail experiment 7 58 4.04J Varying surface density of charge 7 58 4.04K Electric lines of force mapped by gypsum crystals, between parallel plates, between wire and plate 7 58 4.04L Electric lines of force mapped by gypsum crystals, between spheres, showing screening 7 58 4.04M Model experiment to explain electrostatic induction in a conductor 7 58 4.04Q Quadrant electrometer 7 58 4.04R Faraday ice pail experiment 7 58 4.04S Faraday cages 7 58 4.04T Where not to be in a thunderstorm 7 58 4.04U Kelvin's "water dropper" electrostatic machine 7 58 4.04V Attraction and reposition of a charge rod 7 58 4.04W Plus charged pith ball attracted and repelled 7 58 4.04X Minus charged pith ball attracted and repelled 7 58 4.04Y Induced charges in pith ball due to near by charged rods 7 58 4.04Z Placing a plus charge on an electroscope 7 58 4.04AA Placing a minus charge on an electroscope 7 58 4.04AB What is the charge on the gold leaf? 7 58 4.04AF Distribution of charges on a curved surface 7 58 4.04AG Electrical charges in a thundercloud 7 58 4.04AH One dyne force 7 58 4.04AI Lines of force between like charges 7 58 4.04AK Field of positively charged plate 7 58 4.04AL Field of negatively charged plate 7 58 4.04AM Electric field pictured by lines of force 7 58 4.04AN Thunderstorms 7 58 4.04AO Condensers in series 7 58 4.04AP Condensers in parallel 7 58 4.04AQ The function of a lightning rod 7 58 4.05A Chemical action in simple voltaic cell 7 58 4.05B Galvani's Experiment and Galvanic Electricity 7 58 4.05C Electroplating slide 1 7 58 4.05D Electroplating slide 2 7 58 4.05E Primary and secondary cells 7 58 4.05F Primary Galvanic Cells 7 58 4.05G Circuit and diagram of potentials for cell 7 58 4.05H Spontaneous ionization and electrolysis 7 58 4.05I Electrolysis of water and HCl 7 58 4.05J Polarization and local action

33

Description Date(s)

Series Box Item 7 58 4.05K Gravity cell, dry cell, Weston standard, cd cell 7 58 4.05L Faraday's laws of electrolysis 7 58 4.05M Separation of sodium chloride in solution 7 58 4.05N Current conducted by a solution 7 58 4.05O Calculation of electrochemical equivalent 7 58 4.05P Reactions in decomposition of water 7 58 4.05Q 13. Formation of hydrogen and oxygen 14. Formation of lead crystals 7 58 4.05R Conductivity of solutions vs. metal

Box 59 7 59 4.06A The Wheatstone bridge circuit 7 59 4.06B Branched circuits; water analogy 7 59 4.06C Circuit an diagram of potentials 7 59 4.06F Resistance in series, water analogy 7 59 4.06G Simple battery circuit, water analogy 7 59 4.06H Cells in series and parallel, water analogy 7 59 4.06I Potentiometer 7 59 4.06J Data leading to Ohm's law 7 59 4.06K Relation of resistance to length of wire 7 59 4.06L Relation of resistance to wire size 7 59 4.06M Relation of resistance to material 7 59 4.06N Change of resistance with temperature 7 59 4.06P Current conducted by a wire 7 59 4.06Q Water analogy of conduction 7 59 4.06R Analogy between electric and water circuits 7 59 4.06S Fall of potential is proportional to current flowing 7 59 4.06T Relation of resistance to length 7 59 4.06U Relation of resistance to size of wires 7 59 4.06V Relation of resistance to material 7 59 4.06W Change of resistance with temperature 7 59 4.06X Inspection problems on Kirchhoff's laws 7 59 4.06Y Inspection problems on Kirchhoff's laws 7 59 4.06AA Inspection problems on Kirchhoff's laws 7 59 4.06AB Inspection problems on Kirchhoff's laws 7 59 4.06AC Inspection problems on Kirchhoff's laws 7 59 4.07A Electric iron and its heating coil 7 59 4.07B Types of fuses 7 59 4.07C Household fuse block and meter 7 59 4.08A Electro magnet fields 7 59 4.08C Large practical lifting magnet 7 59 4.08D Magnetic field about ring coil

34

Description Date(s)

Series Box Item 7 59 4.08E Right hand rule for helix 7 59 4.08F Right hand rule for field about a wire 7 59 4.08G Figs. 1 and 2 from Apparatus card 4.08A 7 59 4.08H Figs. 3 and 4 from Apparatus card 4.08A 7 59 4.08I Figs. 5 and 6 from Apparatus card 4.08A 7 59 4.08J Figs. 7 and 8 from Apparatus card 4.08A 7 59 4.08L Motion produced by current through a conduction in a magnetic field 7 59 4.08M Motion of loop of wire carrying current in a magnetic field 7 59 4.08N Charges in motion create a magnetic field 7 59 4.08O Magnetic lines of force around wire carrying a current 7 59 4.08P Photoelectric and thermionic effects 7 59 4.08Q Force between conductors 7 59 4.08R Oersted's experiment 7 59 4.08S The motor relation 7 59 4.08T Mutual attraction between two conductors 7 59 4.08U Horse shoe magnet and straight movable conductor 7 59 4.08V Flexible conductor wraps its self about a bar magnet 7 59 4.08W Bar magnet turns in field of an electric current 7 59 4.08X Magnetic field of a current in Solenoid 7 59 4.09A Interior of ammeter 7 59 4.09B Magnets and lines of force 7 59 4.09C Watt meters 7 59 4.09D Voltmeter and ammeter 7 59 4.09E Principle of moving coil ammeter or galvanometer 7 59 4.09F Principle of dynamometer type instrument 7 59 4.09G Principle, soft iron instrument 7 59 4.09H Principle of hot wire ammeter 7 59 4.09I Short circuit of D.C. station ammeter 4.09C 7 59 4.09J Multiplier circuit of D.C. station voltimeter 4.09D 7 59 4.09K Measurement of voltage 7 59 4.10A Magnetic curves and hysteresis 7 59 4.10C Induced magnetism in soft iron and in steel 7 59 4.10D Equivalent magnets Alnico and other materials 7 59 4.10E Alnico compared to other permanent magnet materials 7 59 4.10F Demagnetization and energy curves for various magnet materials 7 59 4.10H Hysteresis cycle 7 59 4.11A Induction coil 7 59 4.11B Principle of dynamo 7 59 4.11C Simplest slip ring generator 7 59 4.11D Simplest generator with commutator

35

Description Date(s)

Series Box Item 7 59 4.11E Induction coil 7 59 4.11F Right hand rule 7 59 4.11G [untitled] 7 59 4.11H [missing label] between [missing label] coil 7 59 4.11I Illustrating mutual inductance 7 59 4.11J A simple transformer

Box 60 7 60 4.11K Magnetic fields in motion 7 60 4.11L 8. An inductive circuit 9. Growth and decay of current 7 60 4.11M 3. Electromotive force curve 4. Magnetic circuit of an alternator 7 60 4.11N Circuit demonstrating self inductive EMF by flashing lamp 7 60 4.11O Water analogue of a self inductive EMF 7 60 4.12A Methods of exciting dynamo fields 7 60 4.12B Drum armature 7 60 4.12C Modern direct current dynamo 7 60 4.12D Winding scheme for direct current armature 7 60 4.12E Potential difference between brushes of machine such as 4.12D 7 60 4.12F Shunt wound dynamo 7 60 4.13A A circuit for a thermojunction 7 60 4.14B [untitled] 7 60 4.14C Component emps 7 60 4.14D Power curve for AC circuit with inductance and resistance 7 60 4.14E Two phase generator 7 60 4.14F Vector relations of an alternating current 7 60 4.14G Conventional representations of elements of an alternating current circuit 7 60 4.14H Water analogy of a condenser in an alternating current 7 60 4.14I Oscillogram showing current lag behind e.m.f. 7 60 4.15A Diagram of power transmissions 7 60 4.15B Transformers 7 60 4.15C Modern AC generator 7 60 4.15D Two phase induction motor 7 60 4.15E Step up and step down transformers 7 60 4.15F Power transmission circuit 7 60 4.16A Oscillations of a flash of lightening 7 60 4.16D Oscillatory discharge of a condenser through resistance 7 60 4.16E Oscillating discharge - mechanical analogy 7 60 4.16G Water analogue of an L-C circuit 7 60 4.17A Discharge of electricity 7 60 4.17B Diagram of Millikan's oil drop experiment 7 60 4.17C Mercury vapor arc light

36

Description Date(s)

Series Box Item 7 60 4.17D Arc lights 7 60 4.17E Mercury vapor arc rectifier 7 60 4.17F Cathode ray tubes 7 60 4.17G Cathode ray oscillograph 7 60 4.18A Action of triode 7 60 4.18C The "Electric Eye" drinking fountain 7 60 4.18D Thermo-electric and photo-electric effect 7 60 4.18F Two electrode vacuum tube, (7). Three electrode vacuum tube, (8). 7 60 4.18G Variations of plate circuit with grid potential 7 60 4.18H Plate current 7 60 4.18I Method of applying an alternating potential to the grid 7 60 4.18J Use of condenser and high resistance 7 60 4.19A The radio spectrum 7 60 4.19B Damped, carrier, modulated, rectified waves 7 60 4.19H Different elements in radio 7 60 4.19I A radiating set 7 60 4.19J High frequency radio wave 7 60 4.19K Very short wave transmitter and receiver 7 60 4.19L Mechanical analogue of an oscillating circuit 7 60 4.19M A dynamic speaker 7 60 4.19N A magnetic speaker 7 60 4.19O Modulation and detection of a radio wave 7 60 4.19P A triode tube 7 60 4.19Q The radio spectrum 7 60 4.19R Schematic instantaneous representation of the lines of electric force in a plane containing a radiating dipole 7 60 4.20A Multiple telegraph 7 60 4.20B Telephone receiver and transmitter 7 60 4.20D Telephone circuits 7 60 4.20E One way telegraph circuits 7 60 4.20F One way telegraph, with relay 7 60 4.20G Simplest possible telephone circuit 7 60 4.20H Telephone circuit; energy from batteries 7 60 4.20I Distributed capacity of a long line 7 60 4.21A Tesla coil 7 60 5.01A Die Müller-Lyersche Täuschung 7 60 5.02A Infrared photograph. A hundred miles to the Himalayas 7 60 5.02B Complete electromagnetic spectrum 7 60 5.02C Diminution of intensity with obliquity 7 60 5.02F Effect of altitude on isolation 7 60 5.02H Conventional drawings of light rays and wave fronts

37

Description Date(s)

Series Box Item 7 60 5.02I Dual nature of light 7 60 5.02J Photoelectric cell

Box 61 7 61 5.03A Michelson's latest method for measuring the velocity of light 7 61 5.03B Michelson's mile long vacuum tube for determining speed of light 7 61 5.03D Shadows and inverse square law 7 61 5.03E Roemer's determination of the velocity of light 7 61 5.03F Roemer's method of computing the velocity of light 7 61 5.03I Strahlengang beim Michelson-Versuch von 1887 7 61 5.04A Head' of Lummer-Brodhun photometer 7 61 5.04B Photometry 7 61 5.04D Illumination needed for play and work 7 61 5.04E Illumination curve of lamp without shade 7 61 5.04F Illumination curve of lamp with shade 7 61 5.05A Parabolic mirror Army search lights 7 61 5.05B Concave mirrors, slide 1 7 61 5.05C Concave mirrors, slide 2 7 61 5.05D Plane mirrors 7 61 5.05E Principal ray constructions for mirrors, spherical 7 61 5.05F Reflection of circular waves at a mirror 7 61 5.05G Real image of a point source by concave mirror 7 61 5.05H Figure for derivation of the mirror law 7 61 5.05J Images in plane mirror 7 61 5.05L Reflectivity of polarized light 7 61 5.05M Simple plane mirror, two mirrors at right angles 7 61 5.05N Grinding the 200 inch telescope 'eye' 7 61 5.05O Disc for 200 inch telescope 7 61 5.06A Total reflection from upper water surface (mirror along bottom) 7 61 5.06B Total reflection within stream of water 7 61 5.06C Ripple photograph showing refraction, note submerged rectangular plate 7 61 5.06D Illustrating refraction and total reflection 7 61 5.06E Law of refraction by Huygen's construction 7 61 5.06F Illustrating total internal reflection 7 61 5.06H Straight stick appears bent when immersed in water 7 61 5.06I A straight stick appears bent when immersed in water 7 61 5.06L Refraction of light by water 7 61 5.07A Image formation and camera 7 61 5.07C Image formation by diverging lens; cases by principal rays

38

Description Date(s)

Series Box Item 7 61 5.07D Figure for derivation of lens law 7 61 5.07E Mechanical analogy of lens 7 61 5.07F Action of lens on light 7 61 5.07J Distortion 7 61 5.07K Achromatic lens 7 61 5.07L Cornea 7 61 5.07M Real image formed by a thin double convex lens 7 61 5.07N Focusing of ripples by shallow water lens 7 61 5.08B Limit of resolving power of microscope 7 61 5.08E Figure for finding magnifying power of compound microscope 7 61 5.08F Figure for finding magnifying power of astronomical microscope 7 61 5.08G Prism binoculars 7 61 5.08J The camera 7 61 5.08K R[illegible] eye piece 7 61 5.08L Dagor and Tessor 7 61 5.08M Newton's reflecting telescope 7 61 5.08N Depth of focus 7 61 5.08O Varying perspective by varying point of view and focal length 7 61 5.09A Ripples on mercury, snapshot and time exposure 7 61 5.09B Fringes caused by interference from two mirrors 7 61 5.09C Double slit interference fringes 7 61 5.09D Diagram of Michelson's interferometer 7 61 5.09E Diagram of Michelson's interferometer 7 61 5.09I Interference between glass surfaces 7 61 5.09M Young's experiment 7 61 5.09N Interference in several slits 7 61 5.09O The shading representing interference in the space to left of the second screen is, of course, only diagrammatic 7 61 5.09P [untitled] 7 61 5.09Q [untitled] 7 61 5.09S Jarvin's interference refractometer 7 61 5.10B Shadow of disc, showing bright spot 7 61 5.10C Diffraction patterns from various sets of fine openings 7 61 5.10D Diffraction patterns from wire, straight edge and slit 7 61 5.10G Diffraction grating 7 61 5.10H Grating spectrograph 7 61 5.10I Diffraction effects in shadows 7 61 5.10J Diffraction from slits, shown in ripples 7 61 5.10L Cornu's Spiral 7 61 5.10M Diffraction in wedge shaped slit 7 61 5.10N [untitled]

39

Description Date(s)

Series Box Item

Box 62 7 62 5.11A Demonstration Nicol Prisms 7 62 5.11B Refraction (Iceland Spar) 7 62 5.11C Vibrations in lower ray parallel to glass 7 62 5.11D Anisotropic heat flow in quartz crystal 7 62 5.11E Polarization of light, slide 1 7 62 5.11F Polarization of light, slide 2 7 62 5.11H End face of Nicol 7 62 5.11I Nicol prism 7 62 5.11J Light polarized by reflection 7 62 5.11K Stress analysis by polarized light 7 62 5.11L Elliptically polarized light 7 62 5.11M Interference in Uniaxial Crystal 7 62 5.11N Interference in Uniaxial Crystal 7 62 5.11P Internal conical refraction 7 62 5.11R External conical refraction 7 62 5.11S Interference in Bixial Crystal 7 62 5.11T [untitled] 7 62 5.11U Pola-screen removes reflection 7 62 5.11V Polaroid illumination prevents glare 7 62 5.11W Pola-screen darkens sky 7 62 5.11X Interference 7 62 5.11Y Headlights with polaroid 7 62 5.12A Achromatic and direct vision prism 7 62 5.12B Achromatic lenses 7 62 5.12C Spectroscopes 7 62 5.12D Rainbow production 7 62 5.12E Mechanical analogy of dispersion 7 62 5.12F Color theory slide 7 62 5.12G The blue sky and the red sunset 7 62 5.12H Dispersion of a parallel beam white light 7 62 5.12I Dispersion curve 7 62 5.12J Anomalous dispersion in sodium vapor 7 62 5.12L Sunlight dispersed by prism 7 62 5.13A Astigmatic vision 7 62 5.13B Section of human eye 7 62 5.13C Defects of vision 7 62 5.13D Astigmatism of eye and corrections 7 62 5.13E Ein Querschnitt der Netzhaut 7 62 5.13F Ein Beispiel für Irradiation 7 62 5.13G Sensitivity of eye to primary colors

40

Description Date(s)

Series Box Item 7 62 5.13I Optical illusion II 7 62 5.13J Inversion 7 62 5.13K Diffraction patterns from circular apertures 7 62 5.14A Color photography 7 62 5.14B Kodachrome film 7 62 6 Wave length in microns 7 62 6.02A Photovoltaic cells 7 62 6.03A Complete electromagnetic spectrum 7 62 6.03B Bohr orbits for hydrogen atom in normal state, the first excited, drawn to the same scale 7 62 6.05A Cloud chamber tracks of X-ray photoelectrons 7 62 6.05B Alpha and Beta tracks, showing difference in ionizing power 7 62 6.05C Collision of a particle with atom 7 62 6.05E Collision of alpha particle with oxygen atom 7 62 6.05F Effect of magnetic field on radium radiations 7 62 6.05G Wilson Cloud Chamber 7 62 6.05H Alpha Particle Tracks 7 62 6.05I Geiger point counter records alpha and beta particles 7 62 6.05J The point counter 7 62 6.05K Deflection of alpha and beta in an electrostatic field 7 62 6.05L The uranium family 7 62 6.05M Displacement law for Ur-Ra series 7 62 6.06A Distribution of charge in a hydrogen atom in different states 7 62 6.06B Schematic representation of the polarization of the atom core by an external electron 7 62 6.06C Non-penetrating orbit, penetrating orbit 7 62 6.06D Schematic representation of the precession of an electron orbit due to the relativity change in mass of the electron with velocity 7 62 6.06E Probability density distribution curves for the neutral alkali atoms, lithium, sodium, potassium, and rubidium. 7 62 6.06F Comparison of the quantum mechanical with the classical model of the neutral sodium atom 7 62 6.07A Apparatus for 'reversing' the Sodium Lines 7 62 6.07D Facts about spectra 7 62 6.07E Line spectrum of Mercury 7 62 6.08A Dwarf and giant X-ray tubes 7 62 6.08B Lave X-ray diffract in spectra, A Rocksalt. B Kaliophilite 7 62 6.08C X-ray spectrograph for crystal analysis 7 62 6.08D Radiographs 7 62 6.08E X-ray, slide 1 7 62 6.08F X-ray refraction pattern from water

41

Description Date(s)

Series Box Item

Box 63 7 63 6.08G X-ray refraction pattern from nitro-benzaldehyde (powder) 7 63 6.08H X-ray refraction pattern from levulose. Solid and solution 7 63 6.08I X-rays reveal faults in aluminum castings 7 63 6.08J X-ray reveal faults in steel castings 7 63 6.08K Radiographs reveal faults in assemblies 1 7 63 6.08L Radiographs reveal faults in assemblies 2 7 63 6.08M Von Lane patterns 7 63 6.08N Miscellaneous radiographs 7 63 6.08O Radiographs of welds 7 63 6.08P Adult radiograph 7 63 6.08Q Facial bones - radiographs. X-rays in dentistry facial bones 7 63 6.08R X-ray diffraction pattern for piperidine, liquid 7 63 6.08S Origin of the X-rays 7 63 6.08T Face centered cubic crystal 7 63 6.08U Arrangement of atoms in a crystal of salt 7 63 6.08W The Coolidge X-ray tube 7 63 6.09A Artificial Alpha Ray tube 7 63 6.09B Artificial alpha-ray tube 7 63 6.09C Positive Electron - Anderson's discovery photograph 7 63 6.09D Positive and negative electron tracks in cloud chamber - Blackett and Occhialini 7 63 6.09E Picture of Cyclotron 7 63 6.09F Diagram of Cyclotron 7 63 6.09G Pair Production 7 63 6.09H Pair annihilation - Why positive electrons are rare 7 63 6.09I Positive and negative electron tracks in cloud chamber - Blackett and Occhialini 7 63 6.09K Scale diagram of mass spectrograph (Bainbridge and Jordan) 7 63 6.09L Cross-section for Scattering and Pair Formation by Gamma Rays 7 63 6.09M Energy Loss of Fast Electrons by Ionization and Radiation 7 63 6.09N Scattering Coefficient per Electron According to Klein and Nishina 7 63 6.10A Cosmically directional effect 7 63 7.02A Symbol of physics 7 63 7.02B The Genealogy of a Scientific Theory 7 63 7.02C Physics courses primarily for undergraduates 7 63 7.02C Physics courses for undergrads 7 63 7.02D Brief history of physics 7 63 7.03A Electrons as waves: Diffracted electron beam from single crystal

42

Description Date(s)

Series Box Item 7 63 7.03C Electron diffraction pattern from metal field 7 63 7.05A Law of conservation of matter 7 63 7.05B Law of definite proportions 7 63 7.05C Law of multiple proportions 7 63 7.05D Facts supporting law of mult. Prop. 7 63 8.01AMP Andre Marie Ampere 7 63 8.01ARC Archimedes 7 63 8.02BEC Antoine Henry Becquerel 7 63 8.02BOY Robert Boyle 7 63 8.02BRE Sir David Brewster 7 63 8.02BRI Dr. P.W. Bridgman 7 63 8.02BUN Robert Wilhelm von Bunsen 7 63 8.04DEW Sir James Dewar 7 63 8.06FAR Michael Faraday 7 63 8.06FRAU Joseph Fraunhofer 7 63 8.07GALI Galileo 7 63 8.07GALV Luigi Galvani 7 63 8.07GIL William Gilbert 7 63 8.07GUE Otto von Guericke 7 63 8.08HEI Heisenberg, Schroedinger, Dirac 7 63 8.08HEL Herman Ludwig Ferdinand Helmholtz 7 63 8.08HEN Joseph Henry 7 63 8.08HER Heinrich Hertz 7 63 8.10JOU James Prescott Joule 7 63 8.11KEL Lord (Sir William Thompson) Kelvin 7 63 8.13MAX James Clerk Maxwell 7 63 8.13MIC Albert Abraham Michelson 7 63 8.13MICH Albert A. Michelson 7 63 8.14NER Walther Nernst 7 63 8.14NEW Sir Isaac Newton 7 63 8.15OHM Georg Simon Ohm 7 63 8.16PAS Pascal 7 63 8.16PLA Max Planck 7 63 8.16POI Jules Henry Poincare 7 63 8.18RAM Sir William Ramsey 7 63 8.18RAY Lord (John William Strutt) Raleigh 7 63 8.18REG Henri Victor Regnault 7 63 8.18ROE William Conrad Roentgen 7 63 8.18ROW Henry Augustus Rowland 7 63 8.18RUM Count (Benjamin Thompson) Rumford 7 63 8.18RUT Earnest Rutherford

43

Description Date(s)

Series Box Item Box 64 7 64 8.20THO Sir Joseph John Thompson 7 64 8.20TOR Evangelista Torricelli 7 64 8.20TYN John Tyndal 7 64 8.22VOL Count Alessandro Volta 7 64 8.23WHE Sir Charles Wheatstone 7 64 9.01A Simple Osometer 7 64 9.01B Osomatic pressure of sucrose 7 64 9.01C Depression of freezing point for solutions of NaCl 7 64 9.01D Osomatic pressure of sucrose solution 7 64 9.01E Apparatus of Berkeley and Hartley 7 64 9.02A Table of dispersoids 7 64 9.02B Apparatus for determination of the charge of colloid particles 7 64 9.02C Variation of certain properties with degree of dispersion 7 64 9.02D Dispersoids 7 64 9.03D Schematic diagram of human circulatory system 7 64 9.03E Systole and Diastole 7 64 9.03F Sphygmomanometer and stethoscope as used in auscultatory method for measuring blood pressure 7 64 9.04A Relation between wet bulb temperature and comfort 7 64 9.04B Typical readings for a Kata-thermometer 7 64 9.04C Climographs 7 64 9.05A Heat of combustion of certain foods 7 64 9.05B Main gains and losses of energy in man 7 64 9.05C Section of tap corner of respiration calorimeter 7 64 9.05D Verification of energy conservation in the human body 7 64 9.05E Relation between respiratory quotient and heat produced 7 64 9.05F Bomb calorimeter and accessories 7 64 9.05G Power developed by man 7 64 9.05H Tests of the respiration calorimeter 7 64 9.05I Water vapour losses from the skin and lungs 7 64 9.05J Relative losses of energy by the human body 7 64 9.05K Bicycle ergometer and universal respiration apparatus 7 64 9.06A Labyrinth of right ear 7 64 9.06B Basal and middle turns of the cochlea 7 64 9.06C Vertical section of cochlea 1st turn 7 64 9.06D Interior of right cochlea 7 64 9.06E Schematic section of ear 7 64 9.06F Tympanic ossicles 7 64 9.06G Resonance theory of hearing 7 64 9.06H Section through human ear 7 64 9.07A Shortest wavelengths transmitted by various glasses

44

Description Date(s)

Series Box Item 7 64 9.07B Photoelectric cell 7 64 9.07C Longest wavelengths causing photoelectric effect for some elements 7 64 9.07D Ratio of intensity of direct to scattered ultraviolet light 7 64 9.07F Electromagnetic waves of all wavelengths 7 64 9.07G Mercury arc in quartz tube 7 64 9.07H Transmission of ultraviolet light by various materials 7 64 9.07I Absorption spectra of media of eye 7 64 9.07J Arc spectra 7 64 9.08A Left homonymous hemianopsia 7 64 9.08B Schematic section of human eye (horizontal meridian) 7 64 9.08C [?] Posterior half of right eye 7 64 9.08D Normal optic tracts and visual fields 7 64 9.08E Bitemporal hemianopsia 7 64 9.08F Variation of sensitivity of eye with wavelength 7 64 9.08G Color mixture in the spectrum of a standard white light 7 64 9.08H Decrease of power of accommodation with age 7 64 9.08I Diagrammatic representation of long sightedness and the correcting converging lens 7 64 9.08J Diagrammatic representation of short sightedness and the correcting divergent lens 7 64 9.08K Principle of Helmholtz Ophthalmometer 7 64 9.08L Helmholtz Ophthalmoscope 7 64 9.08M Ophthalmoscope - indirect method 7 64 9.08N Figure for testing sphericity of cornea 7 64 9.08O Principle of Javal and Schjötz ophthalmometer 7 64 9.08P Diagram to illustrate principle of ophthalmometer 7 64 9.08Q Crystalline lens according to Gullstrand 7 64 9.08R Variation of acuity of vision with distance from fovea 7 64 9.08S Diagrammatic horizontal section through human right eye 7 64 9.09A Microscope of two converging lenses 7 64 9.09B Microscope showing principal planes 7 64 9.09C Table of objectives 7 64 9.09D Semi-angular aperture 7 64 9.09E Lenses of one type of 2mm apochromatic objective

Box 65 7 65 9.10A Relation between e.m.f and pH, at 20 degrees Celsius 7 65 9.10B Cell composed of hydrogen electrode and calomel half cell 7 65 9.10C Clark and Lubs indicator 7 65 9.10D Percentage dissociation and solutions for certain solutions 7 65 9.10E Condensers

45

Description Date(s)

Series Box Item 7 65 9.11A Damped oscillations 7 65 9.11B Telsa transformer 7 65 9.11C Diathermy apparatus activated by A.C. supply 7 65 9.11D Value set for high frequency oscillations 7 65 9.11E Excitation by impact 7 65 9.11F Tuned 'patient circuit' 7 65 9.11G Oudin coil 7 65 9.11H Hertz's apparatus 7 65 9.11I Oscillating circuits 7 65 9.12A X-ray spectra, general radiation 7 65 9.12B Types of X-ray spectra 7 65 9.12C Mosely's law for Ka 7 65 9.12D Constant potential X-ray circuit 7 65 9.12E Curve for a rectified current 7 65 9.12F Mechanical rectifier 7 65 9.12G Graetz circuit 7 65 9.12H Diagram of X-ray spectrometer 7 65 9.12I Reflection of X-ray at a crystal 7 65 9.12J The rock salt crystal 7 65 9.12K Hot cathode tube 7 65 9.12L Gas filled tube 7 65 9.13A Gold leaf electroscope as used for radioactive measurements 7 65 9.13B Apparatus of Rutherford and Royds 7 65 9.13C The Uranium-radium series 7 65 9.13D Displacement law for Ur-Ra series 7 65 9.13E Small ionization chamber for measurement of dose 7 65 9.13F Distribution of intensity of radiation in water tank 7 65 9.13H a, B and Y rays in a strong magnetic field 7 65 9.13I Ionization vessels and ionization current 7 65 9.13J Knipp cloud expansion apparatus 7 65 9.13K Decay of radioactive substance 7 65 9.13L Cloud expansion chamber photograph of ionization produced by X-rays 7 65 9.14A Human arm (3rd class lever) 7 65 9.15A Localized cortical centers 7 65 2 The southern portion of the moon at last quarter 7 65 4 Orbits of Halley's comet and of the Great Comet of 1811 7 65 6 The Globular Cluster 7 65 7 The occurrence of solar and lunar eclipses 7 65 9 Betelguese and Antares 7 65 10 Diagram of the Ptolemaic System 7 65 11 The changing constellations

46

Description Date(s)

Series Box Item 7 65 12 The relative distances of the planets from the sun 7 65 13 The Nebula N.G.C. 891 in Andromeda seen edge on 7 65 14 Orbits of Halley's comet and of the Great Comet of 1811 7 65 16 Axis of precession 7 65 18 Demonstration of Kepler's first and second laws 7 65 20 How a surveyor measures distances 7 65 Pelsor1 Apparatus 7 65 [untitled] 7 65 Headlights with polaroid 7 65 A Bakelite bar, section 3/8"sq.; B Rubber gasket, 3/4" OD; C Brass ring, knurled on outside; D Soldered joints 7 65 The seasons 7 65 Hanle's Calcite Combination 7 65 Grades Physics Test 7 65 Kirchhoff's Laws 7 65 [untitled, broken] 7 65 10-1 The assigning of indices to the faces of a cubic crystal 7 65 10-3 Diffracted and incident rays 7 65 10-4 The rings of a powder photograph on a flat plate 7 65 10-5 Powder photograph on a cylindrical film 7 65 10-7 Stereographic projection of Laue photograph of NaCl 7 65 10-8 Structure of diamond 7 65 10-14 [untitled] 7 65 10-15 Structure types of compounds AX (Goldschmidt) 7 65 10-16 Structure types of compounds AX (Goldschmidt) 7 65 10-17 The structure of anthracene projected on a plane perpendicular to the axis (Robertson) 7 65 10-18 The structure of anthracene projected upon the ac plane 7 65 10-19 Section perpendicular to c axis of aragonite twinned on (110) 7 65 10-20 A comparison of different patterns…

Box 66 7 66 10-21 Plate XVI 7 66 10-22 Gliding in zinc, after Polanyi 7 66 10-23 Amorphous photograph of unstretched rubber 7 66 10-24 Fibre photograph of rubber stretched seven times its original length 7 66 10-25 Silver 36kV electrons 7 66 10-26 Zinc oxide, cubic form (Bragg and Darbyshire) 7 66 10-27 A two dimensional pattern 7 66 10-36 [untitled] 7 66 10-37 The hexagonal screw axes

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Description Date(s)

Series Box Item 7 66 10-39 The rotation photograph 7 66 10-40 Typical powder photographs 7 66 10-42 The 'sizes' of the most common cation and anions, and the structures and sizes of typical acid radicles 7 66 10-43 [untitled] 7 66 10-44 [untitled] 7 66 10-45 The superposition of layers in the two forms of closest packing 7 66 10-46 [untitled] 7 66 10-47 [untitled] 7 66 10-48 [untitled] 7 66 10-50 [untitled] 7 66 10-52 [untitled] 7 66 10-53 The relation between B-quartz and a-quartz 7 66 10-54 Twinning of quartz by reflection across (1122) 7 66 10-55 [untitled] 7 66 10-56 [untitled] 7 66 10-58 A comparison of the situation of the Co2 group in calcite and aragonite 7 66 10-59 Origin of strong birefringence of calcite and aragonite 7 66 10-60 [untitled] 7 66 10-61 Forms of separate silicon-oxygen groups 7 66 10-62 Forms of silicon-oxygen chains 7 66 10-63 The hexagonal type of silicon-oxygen sheet 7 66 10-64 The tetragonal-type of silicon-oxygen sheet 7 66 10-66 Plate VIII 7 66 10-67 Schematische Ladungsverteilung bei drei 7 66 10-68 Schematische Ladungsverteilung bei zwei 7 66 10-69 Schematische Ladungsverteilung bei drei 7 66 10-70 Versuchsanordnung zur… 7 66 10-71 Elektronenbeugrung 7 66 10-72 Versuchsanordnung zur Messung der DK von Gasen 7 66 10-73 Ablenkung von Molekularstrablen 7 66 10-75 [untitled portrait] 7 66 10-77 Schemes for the gaseous, normal fluid, and liquid crystal states 7 66 10-78 Scheme for the crystal state 7 66 10-80 Structure of calcite 7 66 10-81 The octahedral point group 7 66 10-85 Arrangement of atoms in aragonite, looking along the Z-axis (Bragg) 7 66 10-86 Idealized structure of rubber 7 66 10-87 [untitled] 7 66 10-88 [untitled]

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Description Date(s)

Series Box Item 7 66 10-89 [untitled] 7 66 10-90 Electron diffraction photograph of As4 vapor 7 66 1 Boric acid 7 66 2 Point system 7 66 3 Point system 7 66 4 Boric acid

Box 67 7 67 1 Original wooden container for glass slides 7 67 2 Original wooden container for glass slides [damaged] 7 67 3 Original wooden container for glass slides with mailing label from Mount Wilson Observatory

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