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Format

Book
(274)
Analytic
(134)
Manuscript Collection
(64)
Pamphlet
(14)
Image
(11)
Periodical
(1)

Subject

American Philosophical Society
[X]
Franklin, Benjamin, -- 1706-1790
(119)
Darwinism
(29)
Franklin, Benjamin, -- 1706-1790 -- American Philosophical Society
(25)
Franklin, Benjamin, -- 1706-1790 -- Science
(21)
Genetics
(12)
Publication
(12)
American Association for the Advancement of Science
(11)
Conferences and symposia
(11)
History of biology, especially genetics
(11)
Human genetics
(11)
National Academy of Sciences
(11)
National Academy of Sciences (U.S.)
(11)
Newspapers -- Pennsylvania -- Philadelphia
(11)
Travel -- Invitations, arrangements
(11)
Architectural drawings
(10)
Biographical and personal data
(10)
Cold Spring Harbor Laboratory
(10)
Committee activities
(10)
Scientific organizations, meetings, programs
(10)
Unpublished manuscripts, notes, etc.
(10)
Broadsides
(9)
Drosophila genetics
(9)
Editorial matters
(9)
Evolution
(9)
Fellowships, assistantships
(9)
Jefferson, Thomas, -- 1743-1826
(9)
Lectures, public speaking
(9)
National Research Council
(9)
Peale's Museum (Philadelphia, Pa.)
(9)
Philadelphia (Pa.) -- Newspapers
(9)
Philadelphia County (Pa.) -- Newspapers
(9)
Teaching
(9)
World War II -- Impact on science
(9)
Business Records and Accounts
(8)
General Correspondence
(8)
Genetics of plants
(8)
Laboratory techniques, equipment
(8)
Pencil works
(8)
Recommendations
(8)
Requests for reprints
(8)
Russian politics and science
(8)
Science -- History
(8)
Science -- United States -- History
(8)
Science and technology
(8)
Statistics, biostatistics, biometrics
(8)
Behavioral genetics, IQ
(7)
Biochemistry and organic chemistry
(7)
Business
(7)
Cancer, chemotherapy
(7)
Cytogenetics
(7)
Educational matters
(7)
Indians of North America -- Languages
(7)
Invitations
(7)
Molecular genetics
(7)
Pennsylvania -- History
(7)
Philadelphia (Pa.)
(7)
Population genetics
(7)
Radiation genetics
(7)
Referee's report
(7)
Scientific Correspondence
(7)
University of Pennsylvania
(7)
Abolition, emancipation, freedom
(6)
Anthropology
(6)
Bibliographical matters
(6)
Business and Skilled Trades
(6)
Displaced German scholars
(6)
Franklin, Benjamin, 1706-1790
(6)
Genetics Society of America
(6)
Graduate study
(6)
Human genetics -- Race
(6)
International Congress of Genetics
(6)
Mouse genetics
(6)
National Science Foundation
(6)
Philadelphia (Pa.) -- Description and travel
(6)
Political issues
(6)
Preservation of historical materials
(6)
Publication -- Genetics
(6)
Reviews
(6)
Science and civilization
(6)
Slaves, slavery, slave trade
(6)
University of Pennsylvania.
(6)
Zoology
(6)
American Museum of Natural History
(5)
Carnegie Institution of Washington
(5)
Columbia University
(5)
Congratulations, greetings, thanks
(5)
Crow, James F.
(5)
Dobzhansky, Theodosius Grigorievich, 1900-1975
(5)
Dunn, Leslie Clarence
(5)
Early National Politics
(5)
Embryology, developmental genetics
(5)
Essays.
(5)
Eugenics
(5)
Franklin, Benjamin, -- 1706-1790 -- Imprints
(5)
Gelatin silver prints
(5)
Harvard University
(5)
Historic buildings -- Pennsylvania -- Philadelphia
(5)
Honors
(5)
Marine Biological Laboratory, Woods Hole
(5)
Mayr, Ernst, 1904-2005
(5)
Moe, Henry Allen, 1894-1975
(5)
Muller, H. J. (Hermann Joseph), 1890-1967
(5)
Muller, Hermann Joseph
(5)
Photographs
(5)
Physiology
(5)
Princeton University
(5)
Requests for aid in finding positions
(5)
Science -- History -- Study and teaching
(5)
United States -- Intellectual life
(5)
University of Chicago
(5)
American Academy of Arts and Sciences
(4)
American Institute of Biological Sciences
(4)
American Revolution
(4)
Anishinaabe
(4)
Anthropology -- History
(4)
Bacterial genetics
(4)
Bacteriophage and viral genetics
(4)
California Institute of Technology
(4)
Diaries.
(4)
Dobzhansky, Theodosius
(4)
Du Ponceau, Peter Stephen, 1760-1844
(4)
Dunn, L. C. (Leslie Clarence), 1893-1974
(4)
Editorial matters -- Genetics
(4)
Education
(4)
Education -- United States -- History
(4)
Genetics -- Nomenclature
(4)
Genetics Society of America -- Golden Jubilee
(4)
International Congress of Genetics -- Sixth Congress
(4)
International Congress of Genetics -- Tenth Congress
(4)
Learned institutions and societies -- United States
(4)
Manuscript Essays
(4)
Maps.
(4)
Mendel, Gregor
(4)
National Research Council (U.S.)
(4)
National Science Foundation, U.S.
(4)
Oak Ridge National Laboratory
(4)
Paleontology
(4)
Peale, Charles Willson, -- 1741-1827
(4)
Pennsylvania -- Description and travel
(4)
Philadelphia (Pa.) -- History
(4)
Philadelphia (Pa.) -- Social life and customs
(4)
Philadelphia History
(4)
Photomechanical prints
(4)
Physicians
(4)
Protozoan genetics
(4)
Publication -- Science
(4)
Rabbit genetics
(4)
Race, race relations, racism
(4)
Religion
(4)
Sketches.
(4)
Solicitations for support or contribution
(4)
Vaughan, John, 1756-1841
(4)
Academic freedom
(3)
African American
(3)
Almanacs
(3)
American Chemical Society
(3)
American Society of Human Genetics
(3)
Atomic Energy Commission
(3)
Banks and banking -- United States.
(3)
Beadle, George Wells
(3)
Biology
(3)
Biology, genetics, eugenics
(3)
Botany and plant genetics
(3)
Breck, Samuel, 1771-1862
(3)
Bryn Mawr College
(3)
Canals -- Pennsylvania
(3)
Caspari, Ernst Wilhelm
(3)
Chemistry
(3)
Congratulations, greetings, thanks -- National Academy of Sciences
(3)
Darwin, Charles
(3)
Demerec, Milislav
(3)
Dronamraju, Krishna R.
(3)
Du Ponceau, Peter Stephen, -- 1760-1844
(3)
Du Pont de Nemours family
(3)
Ecology
(3)
Engraving, American
(3)
Ethical issues
(3)
Evolution (Biology)
(3)
Fisher, Ronald Aylmer
(3)
France -- History -- Revolution, 1789-1799
(3)
Franklin, Benjamin, -- 1706-1790 -- Electricity
(3)
Franklin, Benjamin, -- 1706-1790 -- Printing and publishing
(3)
Genetics -- Cattle
(3)
Genetics -- Horses
(3)
Glass, Bentley
(3)
Goldschmidt, Richard Benedict
(3)
Goodenough, Ward Hunt
(3)
Haldane, John Burdon Sanderson
(3)
Honors -- Kimber Award
(3)
Honors -- Nobel Prize
(3)
Honors -- Royal Society (Great Britain)
(3)
Human evolution, physical anthropology
(3)
Human genetics -- Twins
(3)
International Congress of Genetics -- Seventh Congress
(3)
International Congress of Genetics -- Twelfth Congress
(3)
Iroquois Indians -- Rites and ceremonies
(3)
Johns Hopkins University
(3)
Journals (notebooks).
(3)
Lafayette, Marie Joseph Paul Yves Roch Gilbert Du Motier, Marquis de, 1757-1834
(3)
Lectures
(3)
Lectures.
(3)
Lingelbach , William E. (William Ezra), 1871-1962
(3)
Lovejoy, Arthur O. -- (Arthur Oncken), -- 1873-1962
(3)
Massachusetts Institute of Technology
(3)
Mead, Margaret, 1901-1978
(3)
Medical research
(3)
Medicine -- History
(3)
Medicine -- United States.
(3)
Microfilm Collection
(3)
Mohr, Otto Louis
(3)
Morgan, Thomas Hunt
(3)
National Academy of Sciences -- Committee activities
(3)
National Institutes of Health
(3)
National Research Council (U.S.). Committee for Research in Problems of Sex
(3)
National Research Council -- Committee activities
(3)
Neel, James V. (James Van Gundia), 1915-2000
(3)
Ojibwe people
(3)
Pauling, Linus, 1901-1994
(3)
Philadelphia (Pa.) -- Social life and customs.
(3)
Philosophy of science
(3)
Philosophy, American
(3)
Photoprints.
(3)
Political Correspondence
(3)
Political issues -- Germany
(3)
Poultry genetics
(3)
Psychology
(3)
Publication -- American Naturalist
(3)
Publication -- Quarterly Review of Biology
(3)
Rat genetics
(3)
Roscoe B. Jackson Memorial Laboratory
(3)
Royal Society (Great Britain)
(3)
Science
(3)
Science -- Philosophy
(3)
Science -- Societies, etc.
(3)
Science and state -- United States
(3)
Scientific refugees
(3)
Shull, George Harrison
(3)
Slides.
(3)
Smithsonian Institution
(3)
Social conditions, social advocacy, social reform
(3)
Society for the Study of Evolution
(3)
Sonneborn, T. M. (Tracy Morton), 1905-1981
(3)
Sound recordings
(3)
Stalker, Harrison Dailey
(3)
Statesmen -- United States -- Biography
(3)
Stern, Curt
(3)
Teaching -- Harvard University
(3)
Technology -- History
(3)
Travel
(3)
United States -- History
(3)
United States -- History -- French and Indian War, 1755-1763
(3)
United States -- Social life and customs -- To 1775
(3)
United States. National Institutes of Health
(3)
University of Rochester
(3)
University of Texas
(3)
Vaughan, John, -- 1756-1841
(3)
Vietnamese conflict, 1961-1975
(3)
Wallace, Bruce
(3)
Wallace, Bruce, 1920-2015
(3)
Wistar, Caspar, 1761-1818
(3)
World War I -- Impact on science
(3)
Wright, Sewall, 1889-1988
(3)
Zea (maize) genetics
(3)
1774
(2)
Academy of Natural Sciences of Philadelphia
(2)
Akwesasne Counselor Organization
(2)
American Anthropological Association
(2)
American Council of Learned Societies
(2)
American Eugenics Society
(2)
American Institute of Physics
(2)
American Mathematical Society
(2)
American Medical Association
(2)
American Philosophical Society -- Membership
(2)
American Philosophical Society. -- Library
(2)
American Psychological Association
(2)
American Society for Quality Control
(2)
American Society of Biological Chemists
(2)
American Society of Zoologists
(2)
American Statistical Association
(2)
Amherst College
(2)
Anderson, Thomas Foxen, 1911-1991
(2)
Antarctica -- Discovery and exploration.
(2)
Anthropology -- Research
(2)
Archaeology -- Mexico
(2)
Archives
(2)
Art -- Exhibitions
(2)
Art -- United States -- History
(2)
Astronomy -- 18th century
(2)
Astronomy -- Early works to 1800
(2)
Astronomy -- United States -- History
(2)
Atomic Bomb Casualty Commission
(2)
Atomic bomb -- History
(2)
Bache, A. D. (Alexander Dallas), 1806-1867
(2)
Bache, Franklin, 1792-1864
(2)
Barton, Benjamin Smith, -- 1766-1815 -- Biography
(2)
Bartram, John, -- 1699-1777
(2)
Baur, Erwin
(2)
Beadle, George Wells, 1903-1989
(2)
Bell, Whitfield J., Jr., 1914-2009
(2)
Belling, John
(2)
Bingham, William, 1752-1804
(2)
Biogeography.
(2)
Biographical and personal data -- Bridges, Calvin B.
(2)
Biographical and personal data -- Castle, William Ernest
(2)
Biographical and personal data -- Muller, Hermann Joseph
(2)
Biographical and personal data -- Schultz, Jack
(2)
Biographical and personal data -- Stern, Curt
(2)
Biographical and personal data -- Vries, Hugo de
(2)
Biographical and personal data -- Wright, Sewall
(2)
Biology -- Classification
(2)
Biology -- United States
(2)
Biology.
(2)
Birds
(2)
Birds.
(2)
Blakeslee, Albert Francis
(2)
Blakeslee, Albert Francis, 1874-1954
(2)
Bookbinding
(2)
Boston Port Bill, 1774
(2)
Botany
(2)
Botany, Medical
(2)
Brooklyn Botanical Garden
(2)
Bunker Hill, Battle of, 1775
(2)
Cancer -- Research
(2)
Carlson, Elof Axel
(2)
Carriages and carts
(2)
Carte de visite photographs
(2)
Castle, William E. (William Ernest), 1867-1962
(2)
Castle, William Ernest
(2)
Chance, Britton, 1913-2010
(2)
Church buildings -- Pennsylvania-Philadelphia
(2)
Civilization -- Early works to 1800
(2)
Clark, Wilfrid E. Le Gros (Wilfrid Edward Le Gros), 1895-1971
(2)
Cleland, Ralph E. (Ralph Erskine), 1892-1971
(2)
Clippings.
(2)
Coates, Benjamin Hornor, -- 1797-1881
(2)
Cobbett, William, 1763-1835
(2)
College of Physicians of Philadelphia
(2)
Colonial Politics
(2)
Conferences and symposia -- Darwin Centennial
(2)
Congratulations, greetings, thanks -- 75th birthday
(2)
Congratulations, greetings, thanks -- Dobzhansky, Theodosius. 70th birthday
(2)
Congratulations, greetings, thanks -- Horwitz Prize
(2)
Congratulations, greetings, thanks -- Kimber Award
(2)
Congratulations, greetings, thanks -- National Medal of Science
(2)
Congratulations, greetings, thanks -- Nobel Prize
(2)
Congratulations, greetings, thanks -- Royal Society (Great Britain)
(2)
Conklin, Edwin Grant, 1863-1952
(2)
Conservation of natural resources.
(2)
Constitutional history -- United States
(2)
Corner, George Washington, 1889-1981
(2)
Cornplanter, Jesse J.
(2)
Correia da Serra, José Francisco, 1750-1823
(2)
Correspondence.
(2)
Crick, Francis, 1916-2004
(2)
Davenport, Charles Benedict, 1866-1944
(2)
Daylight saving
(2)
De Laguna, Frederica, 1906-2004
(2)
Delaware Indians -- New York (State) -- History
(2)
Delaware Indians -- Pennsylvania -- History
(2)
Delbruck, Max
(2)
Demerec, M. (Milislav), 1895-1966
(2)
Diplomatic History
(2)
Drafts (preliminary versions).
(2)
Du Pont family
(2)
Duffield, Samuel, -- 1732-1814
(2)
Dumas, Charles Guillaume Frédéric, -- ca. 1725-1780
(2)
Electricity -- Early works to 1800
(2)
Embryology -- History
(2)
Enders, John F., 1897-1985
(2)
Eugenics Record Office
(2)
Federation of American Scientists
(2)
Fellowships, assistantships -- Guggenheim
(2)
Fenton, William N. (William Nelson), 1908-2005
(2)
Field notes.
(2)
France -- Foreign relations -- United States
(2)
Franklin, Benjamin, -- 1706-1790 -- Anniversaries, etc
(2)
Franklin, Benjamin, -- 1706-1790 -- Biography
(2)
Franklin, Benjamin, -- 1706-1790 -- France
(2)
Franklin, Benjamin, -- 1706-1790 -- Portraits
(2)
Franklin, Benjamin, -- 1706-1790 -- Religion
(2)
Franklin, William, 1731-1813
(2)
Genetics -- Animals
(2)
Genetics -- Birds
(2)
Genetics -- Guinea pigs
(2)
Genetics -- Lymantria
(2)
Genetics -- Mammals
(2)
Genetics -- Mutation rates
(2)
Genetics -- Snails
(2)
Genetics -- Societies, etc.
(2)
Genetics Society (Great Britain) -- London
(2)
Genetics Society of America -- Committee on Aid to Geneticists Abroad
(2)
Genetics of plants -- Datura
(2)
Genetics of plants -- Mucor
(2)
Geology -- United States -- History
(2)
Germans -- Pennsylvania
(2)
Goldschmidt, Richard, 1878-1958
(2)
Government Affairs
(2)
Great Britain -- Foreign relations -- United States
(2)
Gregg, Alan, 1890-1957
(2)
Haldane, J. B. S. (John Burdon Sanderson), 1892-1964
(2)
Handsome Lake, 1735-1815
(2)
Haudenosaunee
(2)
Hepatitis.
(2)
Heredity
(2)
History -- Societies, etc. -- United States
(2)
History of biology, especially genetics -- Mendel, Gregor
(2)
History of science and technology.
(2)
Hollaender, Alexander
(2)
Honors -- Horwitz Prize
(2)
House, Verl L.
(2)
Hunter, John Dunn
(2)
Huxley, Julian
(2)
Huxley, Julian, 1887-1975
(2)
Hymns
(2)
Independence Hall (Philadelphia, Pa.)
(2)
Independence National Historical Park (Philadelphia, Pa.)
(2)
Indians of Central America -- Panama
(2)
Indians of North America -- Government relations
(2)
Indians of North America -- Missions
(2)
Indians of North America -- New York (State) -- History
(2)
Ingenhousz, Jan, 1730-1799
(2)
International Congress of Genetics -- Eleven Congress
(2)
International Congress of Genetics -- Fifth Congress
(2)
International Congress of Genetics -- Ninth Congress
(2)
International Congress of Genetics -- Thirteenth Congress
(2)
International Congress of Human Genetics -- Third Congress
(2)
International Congress of Zoology
(2)
International Travel
(2)
International Union for Pure and Applied Biophysics
(2)
International Union of Biological Societies
(2)
Iroquois Indians -- Civilization and social life
(2)
Iroquois Indians -- Folklore
(2)
Japan
(2)
Japan -- Description and travel.
(2)
Jefferson, Thomas, 1743-1826
(2)
Jennings, Herbert Spencer
(2)
Keen, William W. (William Williams)
(2)
Kinsey, Alfred C. (Alfred Charles), 1894-1956
(2)
Laboratory notes
(2)
Lafayette, Marie Joseph Paul Yves Roch Gilbert Du Motier, -- marquis de, -- 1757-1834
(2)
Learned institutions and societies
(2)
Lederberg, Joshua
(2)
Legal Records
(2)
Lerner, Isadore Michael
(2)
Levit, Solomon G.
(2)
Lewis and Clark Expedition -- (1804-1806)
(2)
Lewontin, Richard C., 1929-
(2)
Li, Ching Chun
(2)
Libraries -- Pennsylvania -- Philadelphia
(2)
Library Hall (Philadelphia, Pa.)
(2)
Linguistics.
(2)
Literature
(2)
Literature, Arts, and Culture
(2)
Luria, Salvador Edward
(2)
Magyar Tudományos Akadémia
(2)
Manuscripts.
(2)
Maps
(2)
Marine Biological Laboratory (Woods Hole, Mass.)
(2)
Marshall Islands
(2)
Materia medica -- United States
(2)
Materia medica, Vegetable
(2)
Mayr, Ernst
(2)
McClintock, Barbara
(2)
McClintock, Barbara, 1902-1992
(2)
Mease, James, 1771-1846
(2)
Measles.
(2)
Medicine
(2)
Memorabilia
(2)
Metz, Charles W.
(2)
Moe, Henry Allen, -- 1894-1975
(2)
Money
(2)
Monod, Jacques
(2)
Moravians -- Missions
(2)
Morphology.
(2)
Mosquitoes.
(2)
Mount Holyoke College
(2)
Mudd, Stuart
(2)
Mumford, Lewis, 1895-1990
(2)
Museums -- Pennsylvania -- Philadelphia -- 19th century.
(2)
National Foundation on the Arts and the Humanities
(2)
National Institute for the Promotion of Science
(2)
Native America
(2)
Natural history -- Periodicals
(2)
Natural history -- United States
(2)
Natural selection
(2)
Navashin, Sergei Gavrilovich
(2)
Neel, James V.
(2)
Negatives
(2)
New York Academy of Sciences -- History
(2)
Nobel Prizes.
(2)
Notebooks.
(2)
Nuclear Weapons - Testing
(2)
Official Government Documents and Records
(2)
Ojibwa Indians
(2)
Optical instruments
(2)
Ord, George, 1781-1866
(2)
Oxford University
(2)
Painting -- Exhibitions
(2)
Pennsylvania -- Biography
(2)
Pennsylvania -- History -- Colonial period, ca. 1600-1775
(2)
Pennsylvania History
(2)
Philadelphia (Pa.) -- History -- Revolution, 1775-1783.
(2)
Philadelphia (Pa.) -- History.
(2)
Philippines -- Description and travel.
(2)
Photonegatives
(2)
Photoprints
(2)
Physicians -- Correspondence
(2)
Physicians.
(2)
Plants.
(2)
Poetry and literature
(2)
Political issues -- Atomic weapons
(2)
Political issues -- Environment
(2)
Political issues -- Pollution
(2)
Population, demography
(2)
Portraits.
(2)
Postal service -- United States
(2)
Presidents -- United States.
(2)
Price, Richard, -- 1723-1791
(2)
Price, Richard, 1723-1791
(2)
Printed Material
(2)
Printing and Publishing
(2)
Prisons
(2)
Provine, William B.
(2)
Psychiatry -- History
(2)
Public works -- United States
(2)
Publication -- American Journal of Human Genetics
(2)
Publication -- Animal Species and their Evolution
(2)
Publication -- Journal of Heredity
(2)
Quechua Indians
(2)
Race
(2)
Railroads
(2)
Railroads -- Pennsylvania -- History
(2)
Reports.
(2)
Rittenhouse, David, -- 1732-1796 -- Biography
(2)
Robbins, William Jacob, 1890-1978
(2)
Rockefeller Foundation
(2)
Rockefeller University
(2)
Romer, Alfred Sherwood, 1894-1973
(2)
Roux de Rochelle, Jean Baptiste Gaspard, 1762-1849
(2)
Rush, Benjamin, 1746-1813
(2)
Russian politics and science -- Lysenko, Trofim Denisovich
(2)
Russian politics and science -- Vavilov, Nikolai Ivanovich
(2)
Schultz, Jack
(2)
Schultz, Jack,1904-1971.
(2)
Science -- Philosophy -- Study and teaching
(2)
Science -- Relations
(2)
Science -- United States -- History -- 19th century
(2)
Science History Biography
(2)
Scientific Data
(2)
Scientific apparatus and instruments.
(2)
Scientific organizations, meetings, programs -- American Society of Zoologists
(2)
Scientific societies -- United States
(2)
Scrapbooks.
(2)
Seneca
(2)
Sheppard, Philip M.
(2)
Shockley, William, 1910-1989
(2)
Shryock, Richard Harrison, 1893-1972
(2)
Silk
(2)
Six Nations Indian Museum
(2)
Slavery -- Pennsylvania.
(2)
Smith College. Genetics Experiment Station
(2)
Smithsonian Institution -- History
(2)
Social Life and Custom
(2)
Society of Friends
(2)
Sonneborn, Tracy M.
(2)
Speck, Frank G. (Frank Gouldsmith), 1881-1950
(2)
Stamp Act, 1765
(2)
Stern, Curt, 1902-1981
(2)
Sturtevant, Alfred Henry
(2)
Technology -- United States -- History
(2)
Technology and civilization
(2)
Teilhard de Chardin, Pierre
(2)
Telegraph
(2)
Timofeeff-Ressovsky, Nikolai W.
(2)
Tornadoes
(2)
Tower, William L.
(2)
Travel -- England
(2)
Travel -- France
(2)
Travel -- Germany
(2)
Travel -- India
(2)
Travel -- South America
(2)
U.S. Atomic Energy Commission
(2)
United States -- Anniversaries, etc
(2)
United States -- Description and travel
(2)
United States -- Foreign relations -- France
(2)
United States -- Foreign relations -- Great Britain
(2)
United States -- Historiography
(2)
United States -- History -- Colonial period, ca.1600-1775
(2)
United States -- History -- Revolution, 1775-1783 -- Personal histories.
(2)
United States -- History -- Revolution, 1775-1783 -- Sources
(2)
United States -- Military policy
(2)
United States -- Statistics
(2)
United States. -- National Council on the Humanities
(2)
United States. Office of Scientific Research and Development
(2)
Universities and colleges -- United States
(2)
University of California, Berkeley
(2)
University of Michigan
(2)
University of Pennsylvania. -- School of Medicine
(2)
University of Pennsylvania. -- University Museum
(2)
Unpublished manuscripts, notes, etc. -- Research data
(2)
Viral genetics
(2)
Volapük
(2)
Wallace, Anthony F. C., 1923-2015
(2)
Washington University (Saint Louis, Mo.)
(2)
Washington, George (1732-1799)
(2)
Wheeler, John Archibald, 1911-2008
(2)
Wilks, S. S. (Samuel Stanley), 1906-1964
(2)
Williams, Jonathan
(2)
Wilson, Edwin Bidwell
(2)
Wilson, Edwin Bidwell, 1879-1964
(2)
Wistar Association
(2)
World War II -- England
(2)
World War II -- Norway
(2)
World War, 1939-1945
(2)
World War, 1939-1945 -- Participation, Indian
(2)
Wright, Sewall
(2)
Zoology -- Africa
(2)
Zoology -- Animal behavior
(2)
Zoology -- Classification
(2)
Zoology -- Nomenclature
(2)
1773
(1)
1780
(1)
1795
(1)
AIDS (Disease)
(1)
Abbett, Leon, -- 1836-1894
(1)
Abenaki language
(1)
Abolitionists -- United States -- Attitudes
(1)
Abolitionists.
(1)
Academy of Political Science (U.S.)
(1)
Account books
(1)
Account books -- Pennsylvania -- Philadelphia
(1)
Account books.
(1)
Accounts.
(1)
Acquisitions (Libraries)
(1)
Actors
(1)
Adams, John Quincy, 1767-1848
(1)
Adams, John, -- 1735-1826
(1)
Adams, Pauline A.
(1)
Adena culture -- West Virginia
(1)
Admiralty -- United States
(1)
Advisory Committee on Statistical Policy (U.S.)
(1)
Aeronautics -- History
(1)
African Americans -- Education
(1)
Afro-Americans
(1)
Agassiz, Louis, 1807-1873
(1)
Agent Orange
(1)
Agol, I. J.
(1)
Agricultural ecology.
(1)
Agricultural exhibitions
(1)
Agriculture -- Japan.
(1)
Agriculture -- Missouri
(1)
Agriculture -- Pennsylvania -- History -- Sources
(1)
Agriculture -- Periodicals
(1)
Agriculture -- United States -- History
(1)
Ahuja, Yog Raj
(1)
Air -- Purification -- Equipment and supplies
(1)
Airplanes
(1)
Aitken, Jane, 1764-1832
(1)
Aitken, Robert
(1)
Akademiia Nauk SSSR (Academy of Sciences of the USSR)
(1)
Akweks, Aren, 1910-2008
(1)
Alava, Aloha Margaret Hannah
(1)
Alava, Aloha Margaret Hannah, b. 1913
(1)
Albany (Sloop of War)
(1)
Albert Medal
(1)
Albright, William Foxwell, 1891-1971
(1)
Alcoholic beverage industry -- United States
(1)
Alexander, William, 1726-1783
(1)
All Souls' Day
(1)
Allen, Willard M., 1904-1993
(1)
Alms-House (Philadelphia, Pa.). -- Hospital Division
(1)
Alphabets
(1)
America -- Antiquities.
(1)
American Academy of Arts and Sciences -- History
(1)
American Academy of Pediatrics
(1)
American Academy of Sciences
(1)
American Anti-Vivisection Society
(1)
American Association for Public Opinion Research
(1)
American Association for the Advancement of Science -- History
(1)
American Association for the Advancement of Science. Inter-Society Committee for a National Science Foundation
(1)
American Association for the History of Medicine
(1)
American Association of Anatomists
(1)
American Association of Scientific Workers
(1)
American College Testing Program
(1)
American Council on Education
(1)
American Educational Research Association
(1)
American Friends Service Committee
(1)
American Geographical Society of New York
(1)
American Humanist Association
(1)
American Institute of Chemical Engineers
(1)
American Institution for the Cultivation of Science
(1)
American Marketing Association
(1)
American Museum of Natural History -- Darwin exhibit
(1)
American Numismatic Society
(1)
American Ordnance Association
(1)
American Oriental Society
(1)
American Otological Society
(1)
American Pediatric Society
(1)
American Petroleum Institute
(1)
American Philosophical Society -- Art
(1)
American Philosophical Society -- Art collections
(1)
American Philosophical Society -- Curt Stern Papers
(1)
American Philosophical Society -- Nomination, election
(1)
American Philosophical Society -- Prizes
(1)
American Philosophical Society. -- Cabinet
(1)
American Philosophical Society. -- Congress of Liberty -- (1976)
(1)
American Philosophical Society. Library
(1)
American Physical Society
(1)
American Revolution Bicentennial, 1776-1976
(1)
American School of Oriental Research in Jerusalem
(1)
American Society for Information Science
(1)
American Society for Microbiology
(1)
American Society for Testing Materials
(1)
American Society for the Extension of University Teaching
(1)
American Society of Mammalogists
(1)
American Society of Mechanical Engineers
(1)
American Standards Association
(1)
American Telegraph & Telephone Company
(1)
American Telephone and Telegraph Company
(1)
American literature
(1)
American loyalists.
(1)
Americans Abroad
(1)
Amerindians
(1)
Amyotrophic lateral sclerosis
(1)
Anatomy -- Study and teaching.
(1)
Anderson, Andy, b. 1927
(1)
Anderson, Edgar, 1897-1969
(1)
Anderson, Ernest Gustav
(1)
Anderson, Norman G. (Norman Gulack), b. 1919
(1)
Angoon (Alaska)
(1)
Angoon (Alaska) -- History
(1)
Animal Medical Center (U.S.)
(1)
Animal intelligence.
(1)
Animal magnetism.
(1)
Animals -- Habits and behavior of
(1)
Annals of Mathematical Statistics
(1)
Annual reports.
(1)
Antebellum Politics
(1)
Anthracite coal industry -- United States -- Pennsylvania
(1)
Anthropology -- Cultural anthropology
(1)
Anthropology -- Fieldwork -- Case studies.
(1)
Anthropology -- Fieldwork -- Methodology.
(1)
Anthropology -- Methodology
(1)
Anthropology -- Methodology.
(1)
Anthropology -- Micronesia.
(1)
Anthropology -- Papua New Guinea.
(1)
Anthropology -- Study and teaching -- History
(1)
Anthropology -- Study and teaching.
(1)
Anthropometry.
(1)
Anti-Nazi movement -- Germany.
(1)
Antiquities -- Collection and preservation
(1)
Antislavery movements -- Pennsylvania
(1)
Apes.
(1)
Appleman, Charles Orval, 1878-1964
(1)
Applied Mathematics Group
(1)
Applied Mathematics Panel
(1)
Appointment books, diaries, notebooks
(1)
Aquariums.
(1)
Arambourg, C. (Camille), 1885-1969
(1)
Archaeology
(1)
Archaeology -- New Brunswick
(1)
Archaeology -- North America
(1)
Archaeology -- United States.
(1)
Archibald, Raymond Clare, 1875-1957
(1)
Architectural drawings.
(1)
Architecture
(1)
Architecture -- Conservation and restoration
(1)
Architecture -- Pennsylvania -- Philadelphia
(1)
Architecture -- Pennsylvania -- Philadelphia -- History
(1)
Archives -- Law and legislation -- United States.
(1)
Arctic hysteria
(1)
Arithmetic.
(1)
Arizona State University
(1)
Armstrong, John Charles
(1)
Army Mathematics Advisory Panel (U.S.)
(1)
Army Mathematics Steering Group (U.S.)
(1)
Art
(1)
Art -- Collectors and collecting.
(1)
Art -- Michigan -- Detroit -- Catalogs
(1)
Art museums -- United States
(1)
Art patrons -- United States
(1)
Art, American
(1)
Art, American -- History
(1)
Arthritis.
(1)
Articles.
(1)
Artisans -- United States
(1)
Artists
(1)
Asch
(1)
Asch, Timothy
(1)
Association for Social Anthropology in Oceania
(1)
Association of American Geologists and Naturalists
(1)
Association of American Physicians
(1)
Association of Mathematics Teachers of New Jersey
(1)
Associations, institutions, etc. -- Pennsylvania -- Philadelphia
(1)
Astaurov, B. L. (Boris L'vovich), 1904-1974
(1)
Astaurov, Boris L. -- Death
(1)
Astronomers
(1)
Astronomers -- United States -- Biography
(1)
Astronomical instruments.
(1)
Astronomical observatories -- Pennsylvania -- Philadelphia
(1)
Astronomical observatories -- Pennsylvania -- Philadelphia.
(1)
Astronomy
(1)
Astronomy -- Societies, etc
(1)
Astronomy.
(1)
Athens College
(1)
Atland, Klaus
(1)
Atlases
(1)
Atmospheric radiation.
(1)
Atmospheric temperature
(1)
Atomic Bomb Casualty Commission -- Japan
(1)
Atomic Energy Commission -- Reports
(1)
Atomic bomb
(1)
Atomic bomb -- Japan -- Hiroshima
(1)
Atomic bomb -- Japan -- Nagasaki-shi
(1)
Attawapiskat (Ont.)
(1)
Attention
(1)
Audubon, John James, -- 1785-1851
(1)
Audubon, John James, 1785-1851
(1)
Audubon, John James, 1785-1851. Birds of America
(1)
Australia -- Description and travel.
(1)
Autobiographies.
(1)
Avery, Oswald Theodore
(1)
Avila, Enrique
(1)
Ayala, Francisco J.
(1)
Ayala, Francisco Jose, 1934-
(1)
Aydelotte, Frank, 1880-1956
(1)
Aykroyd, Henry, 1827-1890
(1)
Aymara Indians
(1)
Ayoreo Indians
(1)
Aztecs.
(1)
Babcock, Ernest Brown
(1)
Bache, Catherine Wistar, 1770-1820
(1)
Bache, Sarah Franklin, 1743-1808
(1)
Bacterial genetics.
(1)
Bacteriophages
(1)
Bacteriophages-Genetics
(1)
Bahamas -- Description and travel.
(1)
Baird, Henry Carey, 1825-1912
(1)
Baja California (Mexico : Peninsula) -- Description and travel
(1)
Baker, Gladys E.
(1)
Balliol College (University of Oxford)
(1)
Ballistics.
(1)
Balloons.
(1)
Baltimore (Md.) -- Commerce
(1)
Baltimore (Md.) -- History
(1)
Baltzer, Fritz
(1)
Bancker, Charles Nicoll, 1778-1869
(1)
Baniwa Indians
(1)
Bank notes -- Forgeries
(1)
Bank notes -- Great Britain
(1)
Bank of the United States
(1)
Banks and banking -- Pennsylvania
(1)
Banneker, Benjamin, -- 1731-1806 -- Biography
(1)
Barbero, Giulio J., 1923-1997
(1)
Barbeu Du Bourg, -- M. -- (Jacques), -- 1709-1779
(1)
Barbour, Thomas, 1884-1946
(1)
Barlow, Joel, 1754-1812
(1)
Barlow, R. H. (Robert Hayward), 1918-1951
(1)
Barometers.
(1)
Bartlemez, George W., b. 1885
(1)
Barton, Benjamin Smith, -- 1766-1815
(1)
Bartram's Garden (Philadelphia, Pa.)
(1)
Batson, Herbert C. (Herbert Clifford), 1909-1978
(1)
Bauer, Hans
(1)
Bayne-Jones, Stanhope, 1888-1970
(1)
Beale, E. M. L. (Evelyn Martin Lansdowne), 1928-1985
(1)
Beans - Research
(1)
Bearman, David
(1)
Bearn, Alexander G., 1923-2009
(1)
Beausejour (Man.)
(1)
Beaver Meadow Railroad and Coal Company
(1)
Bebe, William, 1877-1962
(1)
Bechhofer, Robert E. (Robert Eric), 1919-1996
(1)
Beck, William Samson, 1923-2003
(1)
Becker, Hans Joachim
(1)
Becker, Hans-Joachim
(1)
Bedbugs
(1)
Beebe, William, 1877-1962
(1)
Beekman family
(1)
Behavior evolution
(1)
Behavior genetics.
(1)
Behavioral genetics, IQ -- Chromosome abnormality and personality
(1)
Behavioral genetics, IQ -- Human
(1)
Behavioral genetics, IQ -- Mammals
(1)
Behavioral genetics, IQ -- Personality
(1)
Belar, Karl
(1)
Belar, Karl -- Death
(1)
Belknap, Jeremy, 1744-1798
(1)
Bell Telephone Laboratories, Inc.
(1)
Bell, Donald C.
(1)
Bells
(1)
Belsham, Thomas, 1750-1829
(1)
Belsley, David A., 1939-
(1)
Belt, Charles Banks, 1931-1996
(1)
Belt, Elmer, 1893-1980
(1)
Benary, Wilhelm
(1)
Beniger, James R. (James Ralph), 1946-2010
(1)
Benison, Saul
(1)
Bennett, Carl A. (Carl Allen), 1921-2014
(1)
Bennett, Wendell Clark, 1905-1953
(1)
Berens River (Man.)
(1)
Berens River Valley (Man.) -- History
(1)
Berg, Raisa, 1913-2006
(1)
Berkner, Lloyd V. (Lloyd Viel), 1905-1967
(1)
Berle, Adolf Augustus, 1895-1971
(1)
Bermuda Biological Station
(1)
Bermuda Biological Station for Research
(1)
Bermuda Islands -- Description and travel.
(1)
Bermuda petrel.
(1)
Bernstein, Felix
(1)
Bernstein, Marianne
(1)
Bernstein, Yale B.
(1)
Berry, L. Joe
(1)
Bible - Criticism, interpretation, etc.
(1)
Bible. New Testament
(1)
Bible. O.T. Psalms, II, 1 -- Sermons
(1)
Bibliographical matters -- Abstracts
(1)
Bibliographical matters -- Castle, William Ernest
(1)
Bibliographical matters -- Genetics
(1)
Bibliographical matters -- Greenwood, Peter Humphrey
(1)
Bibliographical matters -- Jenkins, Farish A.
(1)
Bibliographical matters -- Levi, Herbert Walter
(1)
Bibliographical matters -- Nominees
(1)
Bibliographical matters -- Schultz, Jack
(1)
Bibliographical matters -- Williams, Ernest Edward
(1)
Biddle, Alexander, 1819-1899
(1)
Bills (financial).
(1)
Biochemistry -- History -- Bibliography -- Computer programs.
(1)
Biochemistry -- History -- Bibliography.
(1)
Biochemistry -- History.
(1)
Biochemistry -- Manuscripts -- Indexes.
(1)
Biochemistry -- United States.
(1)
Biochemistry.
(1)
Biochemists.
(1)
Biographical and personal data -- Anderson, Ernest Gustav
(1)
Biographical and personal data -- Belar, Karl
(1)
Biographical and personal data -- Belling, John
(1)
Biographical and personal data -- Boveri, Theodor
(1)
Biographical and personal data -- Calkins, Gary Nathan
(1)
Biographical and personal data -- Charles, Donald Randolph
(1)
Biographical and personal data -- Clausen, Roy Elwood
(1)
Biographical and personal data -- Davenport, Charles Benedict
(1)
Biographical and personal data -- Dunn, Leslie Clarence
(1)
Biographical and personal data -- Goldschmidt, Richard Benedict
(1)
Biographical and personal data -- Goodspeed, Thomas Harper
(1)
Biographical and personal data -- Greenwood, Peter Humphrey
(1)
Biographical and personal data -- Hadorn,
(1)
Biographical and personal data -- Hecht, Selig
(1)
Biographical and personal data -- Heilbrunn, Lewis Victor
(1)
Biographical and personal data -- Huettner, Alfred F.
(1)
Biographical and personal data -- Humor
(1)
Biographical and personal data -- Jenkins, Farish A.
(1)
Biographical and personal data -- Just, Gunther
(1)
Biographical and personal data -- Levi, Herbert Walter
(1)
Biographical and personal data -- Morgan, Thomas Hunt
(1)
Biographical and personal data -- Neel, James V.
(1)
Biographical and personal data -- Obituary
(1)
Biographical and personal data -- Pincus, Gregory
(1)
Biographical and personal data -- Portraits of geneticists
(1)
Biographical and personal data -- Schrader, Franz
(1)
Biographical and personal data -- Sherwood, Eva
(1)
Biographical and personal data -- Sturtevant, Alfred Henry
(1)
Biographical and personal data -- Taylor-Ephrussi, Harriet
(1)
Biographical and personal data -- Timofeeff-Ressovsky, Nikolai W.
(1)
Biographical and personal data -- Weinberg, Wilhelm
(1)
Biographical and personal data -- Williams, Ernest Edward
(1)
Biographical and personal data -- Wilson, Edmund Beecher
(1)
Biographical and personal data -- Zeleny, Charles
(1)
Biographical and personal matters
(1)
Biological Farm Project
(1)
Biologists.
(1)
Biometric Society
(1)
Biophysical Society
(1)
Biophysics
(1)
Biophysics.
(1)
Birds -- Geographical distribution.
(1)
Birds -- New Jersey
(1)
Birds -- New York (State) -- Long Island.
(1)
Birds -- North America
(1)
Birds -- Peru.
(1)
Birds -- Pictorial works
(1)
Birds -- Research.
(1)
Birds -- Study and teaching
(1)
Birds -- Venezuela.
(1)
Birmingham (Pa.)
(1)
Black holes (Astronomy)
(1)
Black, Francis L., 1926-2007
(1)
Blacks.
(1)
Blacksnake, Governor, circa 1753-1859
(1)
Blanchard, Jean-Pierre, -- 1753-1809
(1)
Blasting, Submarine
(1)
Blood Transfusion
(1)
Blood banks
(1)
Blood groups.
(1)
Blowpipe.
(1)
Blumberg, Baruch S., 1925-2011
(1)
Boas, Franz, 1858-1942
(1)
Boche, Robert D.
(1)
Bodenstein, Dietrich
(1)
Bohr, Niels
(1)
Bolivar, George W.
(1)
Bolt, Bruce A., 1930-2005
(1)
Bolton, Ellis T.
(1)
Bonaparte, Charles Lucian, -- 1803-1857
(1)
Bonaparte, Charles Lucian, 1803-1857
(1)
Bonds (financial instruments).
(1)
Bongiovanni, Alfred M., 1921-1986
(1)
Bonner, Campbell, 1876-1954
(1)
Bookplates
(1)
Books -- Auction catalogs
(1)
Booksellers and bookselling
(1)
Bordas, Alejandro F.
(1)
Borek, Ernest, 1911-1986
(1)
Boring, Edwin Garrigues, 1886-1968
(1)
Borneo
(1)
Boston Area Faculty Group on Public Issues
(1)
Boston Tea Party, Boston, Mass., 1773
(1)
Botanical Society of America
(1)
Botanical illustration
(1)
Botany -- Catalogs -- France
(1)
Botany -- Catalogs -- Great Britain
(1)
Botany -- Catalogs -- United States
(1)
Botany -- Chesapeake Bay (Md. and Va.)
(1)
Botany -- England.
(1)
Botany -- Europe.
(1)
Botany -- New York (State)
(1)
Botany -- United States.
(1)
Botany -- Virginia.
(1)
Botany.
(1)
Boucot, A. J. (Arthur James), 1924-2017
(1)
Bougainville Island (Papua New Guinea)
(1)
Boundaries, State.
(1)
Boveri, Theodor
(1)
Bowdoin, James, 1726-1790
(1)
Bowker, Albert H. (Albert Hosmer), 1919-2008
(1)
Bowman, Isaiah, 1878-1950
(1)
Boyd, Lyle Gifford
(1)
Braddock's Campaign, 1755.
(1)
Brandywine (Ship)
(1)
Brandywine, Battle of, 1777
(1)
Brasted, Adair
(1)
Breese, Samuel L. (Samuel Livingston), 1794-1870
(1)
Brehme, Catherine
(1)
Breit, Gregory, 1899-1981
(1)
Bridges, Calvin B.
(1)
Bridges, Calvin B. (Calvin Blackman), 1889-1938
(1)
Bridges.
(1)
Briefs.
(1)
Brigham Young University
(1)
Brillon de Jouy, Anne Louise Boyvin d'Hardancourt, 1744-1824
(1)
Brinton, Daniel Garrison, -- 1837-1899
(1)
Brissot de Warville, J.-P. (Jacques-Pierre), 1754-1793
(1)
British Americans -- Pennsylvania -- Schuylkill County
(1)
British Association for the Advancement of Science
(1)
British Columbia -- Description and travel.
(1)
British Museum
(1)
Broadsides.
(1)
Brokenhead (Man.)
(1)
Bronk, Detlev W. (Detlev Wulf), 1897-1975
(1)
Brooklyn Institute of Arts and Sciences
(1)
Brooklyn Museum.
(1)
Brooklyn Polytechnic Institute
(1)
Brooks, Paul
(1)
Broomall, John Martin, 1816-18
(1)
Brose, William
(1)
Brown University
(1)
Brown, J. F.
(1)
Brown, John, 1800-1859
(1)
Brown, Samuel, 1768-1805
(1)
Bryant, William, -- 1730-1786
(1)
Bryn Mawr (Pa.)
(1)
Bucharest (Romania)
(1)
Buchdahl, H. A. (Hans Adolph)
(1)
Buchholz, J. T. (John Theodore), 1888-1951
(1)
Building materials
(1)
Bunker, Benjamin H.
(1)
Burbank, Luther
(1)
Bureau of Labor Statistics (U.S.)
(1)
Bush, Vannevar
(1)
Bush, Vannevar, 1890-1974
(1)
Business -- Genetics
(1)
Business -- Meetings
(1)
Business -- Minutes
(1)
Business cards
(1)
Butchers.
(1)
Butenandt, Adolph Friedrich Johann
(1)
Byrd, Richard Evelyn, 1888-1957
(1)
Byrd, William, -- 1674-1744. -- Secret history of the line between Virginia & North Carolina
(1)
Byrd, William, 1674-1744
(1)
Cabinetmakers -- Pennsylvania -- Philadelphia -- Archives
(1)
Cabinetwork -- Pennsylvania -- Philadelphia -- History -- 18th century -- Sources
(1)
Cables -- Atlantic Ocean
(1)
Cabrera, Angel, 1879-1960
(1)
Cadet de Gassicourt, C.-L. -- (Charles-Louis), -- 1769-1821
(1)
Cadet, Louis Claude, -- 1731-1799
(1)
Cadet-de-Vaux, Antoine-Alexis, -- 1743-1828
(1)
Cadillac, Antoine Laumet de Lamothe, -- 1658-1730
(1)
Cain, Arthur J. (Arthur James), 1921-1999
(1)
Cairns, John
(1)
Calculators.
(1)
Calendar
(1)
Calendars
(1)
California Institute of Technology -- Thomas Hunt Morgan memorial
(1)
California State Department of Education
(1)
Campus Martius (Marietta, Ohio)
(1)
Canada -- Description and travel
(1)
Canada -- Maps
(1)
Canals
(1)
Canals -- Pennsylvania -- Early works to 1800
(1)
Canals.
(1)
Canamari Indians
(1)
Canton, John, 1718-1772
(1)
Cape May (N.J.)
(1)
Capital punishment.
(1)
Capps, Richard B.
(1)
Capture at sea
(1)
Cardale, Paul
(1)
Carey family
(1)
Carey, Mathew, 1760-1839
(1)
Cargo ships -- United States.
(1)
Carl Schurz Memorial Foundation
(1)
Carnegie Foundation (U.S.)
(1)
Carnegie Institution of Washington -- Burbank, Luther
(1)
Carnegie Institution of Washington -- Reports
(1)
Carnegie Institution of Washington. Department of Genetics
(1)
Carothers, Estrella Eleanor
(1)
Carpenter, Edmund, 1922-2011
(1)
Carson, Rachel, 1907-1964
(1)
Cartography -- United States -- Bibliography
(1)
Cartography -- United States -- History
(1)
Caspari, Ernst W., 1909-1988
(1)
Caster, A.
(1)
Cattell, James McKeen
(1)
Cattell, James McKeen, 1860-1944
(1)
Caughey, John L.
(1)
Cayapo Indians
(1)
Cayuga Indians -- Music
(1)
Cebu City (Philippines)
(1)
Cements, Adhesive
(1)
Cemeteries -- Pennsylvania -- Delaware County
(1)
Censorship -- Soviet Union
(1)
Center for Advanced Study in the Behavioral Sciences (Stanford, Calif.)
(1)
Centerwall, Willard R.
(1)
Central America-Foreign relations-1979-
(1)
Cerebral palsy.
(1)
Cetacea
(1)
Cethovic, Dragoljub Savo
(1)
Chagnon, Napoleon A., 1938-
(1)
Chapman, Frank M.
(1)
Chapple, Charles C.
(1)
Charities -- England -- London
(1)
Charles, Donald Randolph
(1)
Charts.
(1)
Chastellux, François Jean, Marquis de, 1734-1788
(1)
Chaumont, Jacques-Donatien Leray de, 1725-1803
(1)
Chemical apparatus
(1)
Chemicals
(1)
Chemiluminescence
(1)
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(1)
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(1)
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(1)
Chemists -- Pennsylvania -- Philadelphia
(1)
Cherniss, Harold F. (Harold Fredrik), 1904-1987
(1)
Chernobyl Nuclear Accident, Chornobyl, Ukraine, 1986
(1)
Cherokee Indians
(1)
Cherokee language
(1)
Cherokee language -- Alphabet
(1)
Cherokee language -- Texts
(1)
Chesapeake and Delaware Canal
(1)
Chesapeake and Delaware Canal (Del. and Md.)
(1)
Chester County (Pa.) -- History
(1)
Cheyenne Indians
(1)
Cheyenne Indians -- Alcohol use
(1)
Cheyenne Indians -- Economic conditions
(1)
Cheyenne Indians -- Education
(1)
Cheyenne Indians -- Folklore
(1)
Cheyenne Indians -- Government relations
(1)
Cheyenne Indians -- History
(1)
Cheyenne Indians -- Music
(1)
Cheyenne Indians -- Social life and customs
(1)
Cheyenne Indians -- Societies, etc.
(1)
Cheyenne language
(1)
Cheyney, Edward Potts, 1861-1947
(1)
Chiapas (Mexico) -- Religion
(1)
Chibcha language
(1)
Chicago (Ill.)
(1)
Chigakukai (Japan)
(1)
Child Guidance Clinic (Philadelphia, Pa.).
(1)
Children's Hospital of Philadelphia
(1)
Childs, Francis, 1763-1830
(1)
Chile
(1)
Chimpanzees.
(1)
China
(1)
China -- Commerce -- 1644-1912.
(1)
China -- Medical care
(1)
Chinese language
(1)
Chipewyan language
(1)
Chippewa Indians
(1)
Chittibhol, Bancha (Thai stude
(1)
Chlorofluoromethanes-Environmental concerns
(1)
Choco Indians
(1)
Choctaw Indians
(1)
Cholic Acid
(1)
Chovnick, Arthur
(1)
Chowning, Ann
(1)
Christian calendars
(1)
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(1)
Christmas
(1)
Christmas music
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Chromosomes
(1)
Chronometers
(1)
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(1)
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(1)
Chuuk (Micronesia)
(1)
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(1)
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(1)
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(1)
Civilization -- History
(1)
Clarinet.
(1)
Clark, William, 1770-1838
(1)
Clarke, Agnes Helfreich
(1)
Clarke, B. C. (Bryan C.)
(1)
Clarke, Hans Thacher, 1887-1972
(1)
Classical antiquities
(1)
Clay, Henry, 1777-1852
(1)
Cleland, Ralph E. -- (Ralph Erskine), -- 1892-1971
(1)
Clement, Paul A., 1906-1986
(1)
Cleveland Health Museum
(1)
Clocks and watches
(1)
Clocks and watches -- History
(1)
Clocks and watches.
(1)
Cloud, Preston, 1912-
(1)
Coal -- Geology -- Pennsylvania
(1)
Coal mine accidents -- Pennsylvania -- History
(1)
Coal trade -- Pennsylvania -- History
(1)
Cockerell, Theodore D. A. (Theodore Dru Alison), 1866-1948
(1)
Cocopa Indians
(1)
Cognition and culture
(1)
Cohn, Edwin Joseph, 1892-1953
(1)
Cohn, Mildred, 1913-2009
(1)
Coimbra, Carlos E. A., Jr., (Everaldo Alvares), 1959-
(1)
Coinage.
(1)
Coins
(1)
Coit, Joshua, -- 1758-1798 -- Biography
(1)
Colbert, Edwin A.
(1)
Colbert, Edwin Harris, 1905-
(1)
Colchicine - Research
(1)
Cold Spring Harbor Laboratory -- Agol, I. J.
(1)
Cold Spring Harbor Laboratory -- Levit, Solomon G.
(1)
Cold Spring Harbor Laboratory -- Offerman, Carlos
(1)
Cold Spring Harbor Laboratory -- Property
(1)
Cold Spring Harbor Laboratory.
(1)
Cole, Leon Jacob
(1)
College Entrance Examination Board.
(1)
Colombia -- Census
(1)
Colombia -- Description and travel.
(1)
Colony and State Specific History
(1)
Columbia (Symbolic character)
(1)
Columbia University -- Faculty.
(1)
Columbia University -- Fly room
(1)
Columbia University -- History
(1)
Columbia University -- Pollister, Arthur W.
(1)
Columbia University -- Schrader, Franz
(1)
Columbidia
(1)
Columbus, Christopher, 1451-1506
(1)
Comets -- Orbits
(1)
Commerce.
(1)
Commission on Organization of the Executive Branch of the Government
(1)
Committee activities -- Advisory Committee for Biology
(1)
Committee activities -- Advisory Committee for Biology and Medicine
(1)
Committee activities -- Common Problems of Genetics and Paleontology
(1)
Committee activities -- Executive committee
(1)
Committee activities -- Minutes
(1)
Committee activities -- Radiation effects
(1)
Committee activities -- Reports
(1)
Committee activities -- Sterilization
(1)
Committee of Physicians for the Improvement of Medical Care.
(1)
Committee on Applied Mathematical Statistics
(1)
Committee on Operations Research (U.S.)
(1)
Committee on Regional Development of Mathematics
(1)
Committee on Statistical Program for the City of New York
(1)
Committee on Training and Research in Applied Mathematics
(1)
Commonplace books.
(1)
Communicable Disease Center (U.S.)
(1)
Compass.
(1)
Comstock, William
(1)
Conant, James Bryant, 1893-1978
(1)
Condon, Edward Uhler, 1902-1974
(1)
Conference on the History, Philosophy, and Sociology of Science -- (1955 : -- Philadelphia, Pa.)
(1)
Conferences and symposia -- American Society of Zoologists
(1)
Conferences and symposia -- Cold Spring Harbor Symposium
(1)
Conferences and symposia -- History of Evolutionary Synthesis
(1)
Conferences and symposia -- Mendel Centennial
(1)
Conferences and symposia -- Mendel Symposium, Brno
(1)
Conferences and symposia -- Princeton Conference
(1)
Congdon, Charles E. (Charles Edwin)
(1)
Congratulations, greetings, thanks -- 50-year membership
(1)
Congratulations, greetings, thanks -- Allen Award
(1)
Congratulations, greetings, thanks -- Delbruck, Max. 60th birthday
(1)
Congratulations, greetings, thanks -- Genetic Mosaics
(1)
Congratulations, greetings, thanks -- Goldschmidt, Richard Benedict. 70th birthday
(1)
Congratulations, greetings, thanks -- Goldschmidt, Richard Benedict. 80th birthday
(1)
Congratulations, greetings, thanks -- Komai, Taku. 84th birthday
(1)
Congratulations, greetings, thanks -- Kuhn, Alfred. 80th birthday
(1)
Congratulations, greetings, thanks -- Leon J. Cole Professor of Genetics
(1)
Congratulations, greetings, thanks -- Muller, Hermann Joseph. 70th birthday
(1)
Congratulations, greetings, thanks -- Origin of Genetics
(1)
Congratulations, greetings, thanks -- Pauling, Linus. 75th birthday
(1)
Congratulations, greetings, thanks -- Presidential Science Award
(1)
Congratulations, greetings, thanks -- Presidential medal
(1)
Congratulations, greetings, thanks -- Simpson, George Gaylord. 80th birthday
(1)
Congratulations, greetings, thanks -- Stern, Curt. 70th birthday
(1)
Congratulations, greetings, thanks -- Thaxter, Roland. 70th birthday
(1)
Congresses and symposia -- Japan
(1)
Conjoined twins
(1)
Connecticut
(1)
Connecticut -- Politics and government -- 1775-1865
(1)
Connecticut Academy of Arts and Sciences
(1)
Connecticut Argicultural College
(1)
Consanguinity
(1)
Constantinescu, G. K.
(1)
Controllo Della Qualita
(1)
Cook, James, 1728-1779
(1)
Coolidge, William David
(1)
Coon, Carleton S.
(1)
Cooper, Kenneth W.
(1)
Cooper, Kenneth Willard
(1)
Cooper, Thomas, -- 1759-1839
(1)
Cope, Thomas D. -- (Thomas Darlington)
(1)
Coriell, Lewis L.
(1)
Cornplanter, 1732-1836
(1)
Correns, Carl
(1)
Coste, Jean-Francois, -- 1741-1819. -- Compendium pharmaceuticum
(1)
Coste, Jean-Francois, -- 1741-1819. -- Mémoire sur les différents genres d'asphyxie
(1)
Cotton
(1)
Cotton -- Diseases and pests
(1)
Cotton -- Statistics
(1)
Counterinsurgency -- Thailand
(1)
Counting
(1)
Country life -- Pennsylvania
(1)
Court summons
(1)
Courtship -- Songs and music
(1)
Couture, Thomas, -- 1815-1879
(1)
Couturier, Marcel A. J., 1897-
(1)
Cowdry, E. V. (Edmund Vincent), 1888-1975
(1)
Coxe, Paul
(1)
Coyote -- Folklore
(1)
Cracraft, Joel
(1)
Cram, W. J
(1)
Cranach, Mario von, b. 1931
(1)
Creationism.
(1)
Cree Indians
(1)
Cree Indians -- Folklore
(1)
Cree Indians -- History
(1)
Cree Indians -- Hudson Bay Region -- Folklore
(1)
Cree Indians -- Hudson Bay Region -- History
(1)
Cree Indians -- Hudson Bay Region -- Social life and customs
(1)
Cree Indians -- Music
(1)
Cree Indians -- Religion
(1)
Cree Indians -- Social life and customs
(1)
Cree language
(1)
Cree mythology
(1)
Cree women
(1)
Cressie, Noel A. C.
(1)
Crick, Francis H. C.
(1)
Criticism -- History
(1)
Croft, Kenneth
(1)
Crompton, Alfred W., 1927-
(1)
Cross-cultural studies
(1)
Crossing over (Genetics)
(1)
Crow, James F. (James Franklin), 1916-2012
(1)
Crucero Iberia
(1)
Crusades
(1)
Cuba -- Insurrection, 1849-1851
(1)
Cuba -- Statistics, Vital
(1)
Cuckoos
(1)
Cullen, William, 1710-1790
(1)
Cults
(1)
Cultural property
(1)
Culture
(1)
Cumberland (Ship)
(1)
Curaçao -- Social life and customs
(1)
Currie, William, 1754-1828
(1)
Cushing, Harvey, 1869-1939
(1)
Cutler, Manasseh, 1742-1823
(1)
Cutlery
(1)
Cyclones.
(1)
Cyclopedia
(1)
Cystic fibrosis.
(1)
DDT (Insecticide)
(1)
Daguerreotypes
(1)
Dalton, Howard Clark
(1)
Dance cards
(1)
Danforth, Charles Haskell
(1)
Daniels, Farrington, -- 1889-1972
(1)
Darlington, Cyril Dean
(1)
Darlington, William, 1781-1863
(1)
Dartmouth College
(1)
Darwinism.
(1)
Datura.
(1)
Dausset, Jean, 1916-2009
(1)
Davenport, Charles Benedict
(1)
Davis, Amos
(1)
Davis, Bernard D., 1916-1994
(1)
Davis, Bradley M. (Bradley Moore)
(1)
Davis, George Morgan
(1)
Dawkins, Henry, -- d. 1786?
(1)
De Beer, Gavin, Sir, 1899-1972
(1)
De Brahm, John Gerar William, -- 1717-ca. 1799 -- Biography
(1)
De Camp, L. Sprague (Lyon Spra
(1)
DeKruif, Paul
(1)
Deceit detection
(1)
Deeds
(1)
Deevey, Edward Smith, 1914-1988
(1)
Deism -- History
(1)
Delaware County (Pa.) -- History
(1)
Delaware Indians
(1)
Delaware Indians -- Religion
(1)
Delbrück, Max, 1906-1981
(1)
Demerec, M., (Milislav), 1895-1966
(1)
Deming, W. Edwards (William Edwards), 1900-
(1)
Democracy
(1)
Democratic National Convention (1864 : Chicago, Ill.)
(1)
Demography -- History
(1)
Dempster, Arthur Pentland, 1929-
(1)
Dercum, Francis X. (Francis Xavier), 1856-1931
(1)
Design
(1)
Diabetes.
(1)
Dice, Lee R., (Lee Raymond), 1887-1977
(1)
Dickinson College -- History -- Sources
(1)
Dictionary of the English language. Johnson, Samuel, 1709-1784
(1)
Dinsmoor, William Bell, 1886-1973
(1)
Diplomas.
(1)
Diplomatic Material
(1)
Diplomats.
(1)
Disarmament.
(1)
Disasters
(1)
Disasters -- Psychological aspects
(1)
Disasters -- Social aspects
(1)
Diseases -- United States -- 19th century.
(1)
Displaced German scholars -- Braun, Joachim Werner
(1)
Displaced German scholars -- Caspari, Ernst Wilhelm
(1)
Displaced German scholars -- Goldschmidt, Richard Benedict
(1)
Displaced German scholars -- Gruneberg, Hans
(1)
Displaced German scholars -- Holtfreter, Johannes
(1)
Displaced German scholars -- Jollos, Victor
(1)
Dissertations, Academic
(1)
Dixon, Wilfrid Joseph, 1915-
(1)
Dodge, Harold French, 1893-
(1)
Doermann, August H
(1)
Dohrn, Anton
(1)
Domestic relations -- Pennsylvania -- 19th century
(1)
Donaldson, Henry Herbert, 1857-1938
(1)
Donaldson, John
(1)
Dove
(1)
Dow, Sterling, 1903-1995
(1)
Down syndrome
(1)
Drake, Daniel, -- 1785-1852
(1)
Driesch, Hans
(1)
Drinker, Henry S. (Henry Sturgis), 1850-1937
(1)
Drosophila -- Genetics
(1)
Drosophila Information Service
(1)
Drosophila genetics -- Crossing over
(1)
Drosophila genetics -- Mutation rates
(1)
Drosophila genetics -- Nomenclature
(1)
Drosophila genetics -- Research data
(1)
Drosophila genetics -- Suppressor-v
(1)
Drowning victims
(1)
Drums
(1)
Du Chaillu, Paul B., (Paul Belloni), 1835-1903
(1)
Du Ponceau, Peter Stephen, -- 1760-1844 -- Bibliography
(1)
Du Pont, Alfred Victor, -- 1798-1856
(1)
Du Pont, Henry Francis, 1880-1969
(1)
Du Simitière, Pierre Eugène, -- 1737-1784
(1)
Du Vigneaud, Vincent, 1901-1978
(1)
DuBridge, Lee Alvin
(1)
Dunbar, Carl O. (Carl Owen), 1891-1979
(1)
Duncan, R. R.
(1)
Dutilh, Stephen
(1)
Dwellings -- Heating and ventilation
(1)
ENIAC (Computer)
(1)
Eagle dance
(1)
Earth (Planet)
(1)
East, Edward Murray
(1)
Eastern Pennsylvania Psychiatric Institute (Philadelphia, Pa.)
(1)
Eastern Woodlands Indians
(1)
Ebert, James David, 1921-2001
(1)
Eclipses
(1)
Eclipses.
(1)
Ecology.
(1)
Economidou, Ioanna
(1)
Ecton (Northamptonshire, England)
(1)
Edinger, Tilly, 1897-
(1)
Editorial matters -- Advances in Genetics
(1)
Editorial matters -- Blood Cells, Molecules, and Diseases
(1)
Editorial matters -- Drosophila Information Service
(1)
Editorial matters -- Journal of American Zoology
(1)
Editorial matters -- Scientific Monthly
(1)
Edsall, John T. (John Tileston), 1902-2002
(1)
Edson, Charles F.
(1)
Education -- Congresses
(1)
Education -- Europe -- 19th century.
(1)
Education -- Pennsylvania -- Philadelphia
(1)
Education -- Philosophy
(1)
Education -- South Carolina
(1)
Education -- Study and teaching -- England.
(1)
Education -- United States
(1)
Education -- United States.
(1)
Education History Connecticut
(1)
Education, Higher -- United States -- History
(1)
Educational Material
(1)
Educational Testing Service
(1)
Educational Testing Service.
(1)
Educational matters -- Biology textbooks
(1)
Educational matters -- Dartmouth College
(1)
Educational matters -- Germany
(1)
Educational matters -- Netherlands
(1)
Educational matters -- U.S.S.R.
(1)
Edward O'Brien (Ship)
(1)
Egypt -- Civilization.
(1)
Eidouranion
(1)
Eighteenth century
(1)
Einstein, Albert
(1)
Eiseley, Loren C., 1907-1977
(1)
El Reno (Okla.)
(1)
Electricity
(1)
Electricity -- 19th century
(1)
Electron Microscope Society of America
(1)
Electron microscopy
(1)
Electrotherapeutics
(1)
Elgin Botanic Garden (New York, N.Y.)
(1)
Elias, Maxim K. (Maxim Konrado
(1)
Eliot, Samuel, 1739-1820
(1)
Embryology -- United States.
(1)
Embryology.
(1)
Emerson, Alfred E. (Alfred Edwards), 1896-1976
(1)
Emerson, Ralph Waldo, 1803-1882
(1)
Emerson, Rollins Adams
(1)
Emmons, Ebenezer, -- 1799-1863
(1)
Encyclopedias and dictionaries, French
(1)
Engineering -- United States -- History
(1)
Engineering, Science, and Management War Training Program
(1)
England -- Description and travel -- Early works to 1800.
(1)
England -- Description and travel.
(1)
English language
(1)
English language -- Dictionaries
(1)
Engravers -- United States
(1)
Enlightenment -- France
(1)
Enlightenment -- United States
(1)
Entomology -- United States.
(1)
Environmental health.
(1)
Ephrussi, Boris
(1)
Epidemics -- United States
(1)
Epidemiology.
(1)
Episcopal Church -- Pennsylvania -- Philadelphia
(1)
Epling, Carl
(1)
Epling, Carl, 1894-
(1)
Eppes, John Wayles, 1773-1823
(1)
Eriksson, A. W., (Aldur W.), 1927-
(1)
Eskimo languages
(1)
Esplin, Ronald Kent.
(1)
Ether
(1)
Ethics -- Great Britain -- Early works to 1850
(1)
Ethnicity -- Pennsylvania -- History
(1)
Ethnohistory
(1)
Ethnology
(1)
Ethnopsychology
(1)
Eugenics -- Nazi eugenics
(1)
Eugenics Record Association
(1)
Eugenics Record Office -- Bylaws
(1)
Eugenics Record Office -- Fieldworkers
(1)
Eugenics Record Office -- History
(1)
Eugenics Record Office -- Psychology
(1)
Eugenics Record Office -- Reports
(1)
Eugenics Record Office -- Summer courses
(1)
Eugenics Research Association
(1)
Eulogies
(1)
Europe -- Commerce -- 18th century.
(1)
Europe -- Commerce -- 19th century.
(1)
Europe -- Description and travel.
(1)
Europe -- Relations -- United States
(1)
Evans, Cadwalader, -- 1716-1773
(1)
Evans, Herbert Martin
(1)
Evolution -- Horses
(1)
Evolution -- Plants
(1)
Evolution -- Race
(1)
Evolution -- Religious aspects
(1)
Evolution -- Reptiles
(1)
Evolution -- Teeth
(1)
Evolution.
(1)
Evolutionary synthesis.
(1)
Excavations (Archaeology) -- Israel.
(1)
Excavations (Archaeology) -- New Brunswick
(1)
Excavations (Archaeology) -- West Bank.
(1)
Excavations (Archaeology) -- Yemen.
(1)
Exchange of scholars
(1)
Exobiology
(1)
Exploration.
(1)
Extinction (Biology)
(1)
Fackenthal, Frank Diehl, 1883-1968
(1)
Fahmy, Myrtle J.
(1)
Fahmy, O. G.
(1)
Fair Wind's Drum (Radio program)
(1)
Fair Wind's Water Drum (Radio program)
(1)
Fairmount Water Works (Philadelphia, Pa.)
(1)
Fairwind's Drum (Radio program)
(1)
Falcon Lake (Man.)
(1)
Falla, R. A. (Robert Alexander)
(1)
Family Correspondence
(1)
Family Planning.
(1)
Famines -- Ireland
(1)
Fano, Ugo
(1)
Farmers
(1)
Farrand, Livingston, 1867-1939
(1)
Faunce, Wayne M.
(1)
Federalist Party -- Pennsylvania
(1)
Federation of American Scientists -- Scientists' Committee on Loyalty Problems
(1)
Federation of American Societies for Experimental Biology
(1)
Federation of European Biochemical Societies
(1)
Fellowships, assistantships -- California Institute of Technology
(1)
Fellowships, assistantships -- Ephrussi, Boris
(1)
Fellowships, assistantships -- Germany
(1)
Fellowships, assistantships -- John Innes Horticultural Institution
(1)
Fellowships, assistantships -- Kodani, Masuo
(1)
Fellowships, assistantships -- Mukherjee, Ardendu S.
(1)
Fellowships, assistantships -- Perkins, David
(1)
Fellowships, assistantships -- Shull, Elizabeth
(1)
Fellowships, assistantships -- Steinberg, Arthur G.
(1)
Fellowships, assistantships -- Stern, Curt
(1)
Fellowships, assistantships -- University of Rochester
(1)
Ferguson, William Scott
(1)
Fiction
(1)
Fiddle tunes
(1)
Field Museum of Natural History
(1)
Figural aftereffects
(1)
Finance, Personal
(1)
Finance, Public -- United States -- To 1789
(1)
Findley, James
(1)
Finney, David J.
(1)
Fiorelli, Henry
(1)
Fire extinction
(1)
Fire extinction -- Pennsylvania -- Philadelphia
(1)
Fisher, John, 1806-1882
(1)
Fisher, Richard
(1)
Fisher, Ronald Aylmer, Sir, 1890-1962
(1)
Fisheries -- Florida.
(1)
Fisheries -- Great Britain
(1)
Fisheries -- North Carolina.
(1)
Fisheries -- Peru.
(1)
Fishes -- Catalogs and collections
(1)
Fishes -- Italy
(1)
Fishes -- Peru.
(1)
Fishes -- Venezuela.
(1)
Fitch, John, -- 1743-1798
(1)
Flags -- United States.
(1)
Fleming, C. A. (Charles Alexander), 1916-1987
(1)
Flight
(1)
Flood, Merrill Meeks, 1908-
(1)
Florida -- Description and travel
(1)
Flour
(1)
Flowers in art
(1)
Flynn, John E. (John Edward), 1897-1965
(1)
Folk music -- Russia (Federation)
(1)
Follen, Charles, 1796-1840
(1)
Fondation Royaumont
(1)
Forbes, Jacques C. R.
(1)
Ford Foundation
(1)
Ford, E. B. (Edmund Briscoe),
(1)
Ford, Edmund Brisco
(1)
Foreign Policy Association.
(1)
Forests and forestry -- History
(1)
Forests and forestry -- Pennsylvania
(1)
Forests and forestry -- United States -- Maps
(1)
Forests and forestry -- United States.
(1)
Fort Alexander (Man.)
(1)
Fort Selkirk (Yukon)
(1)
Foster, Michael K.
(1)
Fothergill, A.(Anthony),1732?-
(1)
Fothergill, John, -- 1712-1780 -- Biography
(1)
Fothergill, John, -- 1712-1780 -- Correspondence
(1)
Foundries
(1)
Fourier transformations
(1)
Fox Chase Cancer Center. American Oncologic Hospital (AOH). Institute for Cancer Research (ICR)
(1)
France -- 19th century
(1)
France -- Commerce -- United States
(1)
France -- History.
(1)
France -- Intellectual life -- 18th century
(1)
France. Chambre des pairs
(1)
France. Code civil
(1)
Franck, Maximilien
(1)
Franklin (Aircraft carrier)
(1)
Franklin Institute (Philadelphia, Pa.)
(1)
Franklin Institute (Philadelphia, Pa.) -- History
(1)
Franklin Journal
(1)
Franklin, Benjamin, -- 1706-1790 -- Agriculture
(1)
Franklin, Benjamin, -- 1706-1790 -- American Philosphical Society
(1)
Franklin, Benjamin, -- 1706-1790 -- Animal magnetism
(1)
Franklin, Benjamin, -- 1706-1790 -- Chair
(1)
Franklin, Benjamin, -- 1706-1790 -- Contributions in economics
(1)
Franklin, Benjamin, -- 1706-1790 -- Eulogies
(1)
Franklin, Benjamin, -- 1706-1790 -- Finance
(1)
Franklin, Benjamin, -- 1706-1790 -- Graphic arts
(1)
Franklin, Benjamin, -- 1706-1790 -- Gulf Stream
(1)
Franklin, Benjamin, -- 1706-1790 -- Literary style
(1)
Franklin, Benjamin, -- 1706-1790 -- Medicine
(1)
Franklin, Benjamin, -- 1706-1790 -- Monuments
(1)
Franklin, Benjamin, -- 1706-1790 -- Political theory
(1)
Franklin, Benjamin, -- 1706-1790 -- Population
(1)
Franklin, Benjamin, -- 1706-1790 -- Printing
(1)
Franklin, Benjamin, -- 1706-1790 -- Relations with women
(1)
Franklin, Benjamin, -- 1706-1790 -- Royal Society of London
(1)
Franklin, Benjamin, -- 1706-1790 -- Statues
(1)
Franklin, Benjamin, -- 1706-1790 -- The papers of
(1)
Franklin, Benjamin, -- 1706-1790 -- University of Pennsylvania
(1)
Franklin, Benjamin, -- 1706-1790 -- Views on education
(1)
Franklin, Benjamin, -- 1706-1790. -- Papers
(1)
Franklin, Benjamin, -- 1706-1790. -- Proposals relating to the education of youth in Pensilvania
(1)
Franklin, Benjamin, 1706-1790 -- Imprints
(1)
Franklin, Deborah Read Rogers, 1708-1774
(1)
Franklin, William Temple, 1760-1823
(1)
Freeman, Derek
(1)
Freemasonry -- France -- History.
(1)
Freemasons
(1)
Freemasons -- Pennsylvania
(1)
French -- America
(1)
French language
(1)
French language -- Verb
(1)
Friedlander, Paul, 1882-1968
(1)
Friedrich-Wilhelms-Universität Berlin
(1)
Friendly Association for Regaining and Preserving Peace with the Indians by Pacific Measures
(1)
Frisch, Karl von
(1)
Frogs -- United States
(1)
Frontier and pioneer life -- West (U.S.)
(1)
Frost -- Great Britain
(1)
Fruits
(1)
Fruton, Joseph S. (Joseph Stewart)
(1)
Fry, Frank Dewey
(1)
Fulbright Awards Committee
(1)
Funeral music
(1)
Funeral rites and ceremonies
(1)
Furnaces
(1)
Furniture -- History
(1)
Furniture -- Private collections -- Pennsylvania -- Philadelphia
(1)
Furniture -- United States -- History -- 18th century
(1)
Furniture -- United States -- History -- 19th century
(1)
Gaffron, Hans, 1902-
(1)
Gage, Thomas, 1721-1787
(1)
Gallatin, Albert, 1761-1849
(1)
Galley proofs.
(1)
Galloway, Joseph, 1731-1803
(1)
Gamma globulins
(1)
Gandhi, Mahatma , 1869-1948
(1)
Garibaldi, Guiseppe, 1807-1882
(1)
Garrison, Fielding H. (Fielding Hudson), 1870-1935
(1)
Garrod, Archibald Edward, Sir
(1)
Gas-lighting.
(1)
Gastropoda
(1)
Gauld, George
(1)
Gazin, Charles Lewis, 1904-
(1)
Geese
(1)
Geiser, Samuel Wood, 1890-1983
(1)
Gellis, Sydney
(1)
Genealogies.
(1)
Genetic algebras
(1)
Geneticists -- United States.
(1)
Genetics -- Acetabularia
(1)
Genetics -- Antigen transformation
(1)
Genetics -- Cats
(1)
Genetics -- Cell culture
(1)
Genetics -- Czechoslovakia
(1)
Genetics -- Dogs
(1)
Genetics -- Ephestia
(1)
Genetics -- Genetic drift
(1)
Genetics -- Habrobracon
(1)
Genetics -- Heritability
(1)
Genetics -- History
(1)
Genetics -- History.
(1)
Genetics -- Homeostasis
(1)
Genetics -- Invertebrates
(1)
Genetics -- Ladybeetles
(1)
Genetics -- Lethality
(1)
Genetics -- Neurospora
(1)
Genetics -- Path coefficient method
(1)
Genetics -- Pigs
(1)
Genetics -- Research
(1)
Genetics -- Research -- United States
(1)
Genetics -- Research.
(1)
Genetics -- Sciara
(1)
Genetics -- Sheep
(1)
Genetics -- Solenobia
(1)
Genetics -- Triploids
(1)
Genetics -- Wasps
(1)
Genetics Society of America -- Committee activities
(1)
Genetics Society of America. Committee on Genetics, Race, and Intelligence
(1)
Genetics of plants -- Agglutinin from beans
(1)
Genetics of plants -- Antirrhinum
(1)
Genetics of plants -- Bursa
(1)
Genetics of plants -- Colchicine
(1)
Genetics of plants -- Crepis
(1)
Genetics of plants -- Delphinium
(1)
Genetics of plants -- Oenothera
(1)
Genetics of plants -- Sex in fungi
(1)
Genetics, Animal
(1)
Genetics.
(1)
Geodesy
(1)
Geographical myths
(1)
Geography -- Europe
(1)
Geological Society of America.
(1)
Geologists -- United States -- Biography
(1)
Geologists.
(1)
Geology
(1)
Geology -- Great Britain.
(1)
Geology -- Pennsylvania
(1)
Geology -- Pennsylvania.
(1)
Geology -- Tables
(1)
Geology, Stratigraphic.
(1)
Georgia -- Description and travel.
(1)
Germany (East)
(1)
Germany -- Description and travel
(1)
Germany -- Description and travel.
(1)
Germany -- History -- 1933-1945
(1)
Germany -- Politics and government, 1918-1945
(1)
Germany, Dept. of Education
(1)
Gestalt psychology
(1)
Gibbons, Ian R. (Ian Read), b.
(1)
Gibson, James
(1)
Gidley, James W.
(1)
Gies, William John, 1872-1956
(1)
Gillespie, John H.
(1)
Gingerich, Owen
(1)
Gingerich, Philip D.
(1)
Girard College
(1)
Girard Trust Corn Exchange Bank.
(1)
Girard's Bank.
(1)
Girard, Stephen--Estate, 1750-1831
(1)
Girardin, Louis Hue, 1771-1825
(1)
Girls' Schools -- France -- Paris
(1)
Gittings, J. Claxton (John Claxton), 1874-1950
(1)
Glass plate negatives
(1)
Glass, Bentley, 1906-2005
(1)
Gloor, Hans
(1)
Gnanadesikan, Ramanathan, 1932-
(1)
Goddard, David Rockwell
(1)
Goethe
(1)
Gold mines and mining -- California -- 19th century
(1)
Goldsmith, Oliver
(1)
Goodale, Hubert Dana
(1)
Goode, G. Brown -- (George Brown), -- 1851-1896 -- Biography
(1)
Gordon, Robert Dean
(1)
Gorlitz (Dresden, Germany). Gymnasium
(1)
Gottschewski, Georg H. M.
(1)
Gouaches -- Color
(1)
Goucher College
(1)
Gould, Stephen Jay
(1)
Gould, Stephen Jay, 1941-2002
(1)
Governors -- New Jersey -- Biography
(1)
Gowen, Franklin B. (Franklin B
(1)
Graduate study -- Bernstein, Marianne Wiener
(1)
Graduate study -- Harvard University
(1)
Graduate study -- Yale University
(1)
Grammars.
(1)
Grant, Verne
(1)
Grapes
(1)
Graphic arts -- United States -- History
(1)
Grassland fires
(1)
Grave Creek Mound (Marshall County, West Virginia)
(1)
Graves, Thomas Graves, 1st Baron, 1725-1802
(1)
Gravitation
(1)
Gray, John Edward, 1800-1875
(1)
Great Britain -- Colonies
(1)
Great Britain -- Colonies -- America
(1)
Great Britain -- Commerce -- West Indies.
(1)
Great Britain -- Foreign relations -- Russia
(1)
Great Britain -- History -- 19th century.
(1)
Great Britain -- Politics and government -- 1760-1789
(1)
Great Britain -- Politics and government -- 1789-1820
(1)
Great Britain. Treaties, etc. United States, 1783 Sept. 3
(1)
Great Central Fair for the U.S. Sanitary Commission (1864 : Philadelphia, Pa.)
(1)
Greek War Relief Association
(1)
Greely, A. W. (Adolphus Washington), 1844-1935
(1)
Greene, William, 1731-1809
(1)
Greenleaf, Lewis S., Jr.
(1)
Gregory, Joseph Tracy, 1914-
(1)
Gregory, Paul Wallace, 1898-
(1)
Gregory, William K. (William K
(1)
Grinnell Expedition, 2d, 1853-1855
(1)
Grobman, Arnold B.
(1)
Grosvenor, Gilbert H., 1875-1966
(1)
Gruneberg, Hans
(1)
Guam
(1)
Guano
(1)
Guano.
(1)
Guaymi Indians
(1)
Guitar -- Performance
(1)
Gulf Stream
(1)
Gunpowder
(1)
Gunsalus, I. C. (Irwin Clyde)
(1)
Gustafsson, Ake, 1908-1988
(1)
György, Paul
(1)
HIV (Viruses)
(1)
Hadorn, Ernst
(1)
Hage, Per
(1)
Haggard, Patience
(1)
Hair Samples -- Horses
(1)
Haiti
(1)
Haiti -- History -- Sources
(1)
Haldane, Helen Spurway
(1)
Hall, Cecil Edwin, b. 1912
(1)
Hall, E. Raymond (Eugene Raymo
(1)
Hallowell, A. Irving (Alfred Irving), 1892-1974
(1)
Halocarbons
(1)
Hamilton, Alexander, -- 1757-1804
(1)
Hamilton, Alexander, 1757-1804
(1)
Hammerling, Joachim
(1)
Hamming, R. W. (Richard Wesley), 1915-
(1)
Hammon, William McD (William McDowell), 1904-1989
(1)
Hammond, John Henry
(1)
Hanford Site (Wash.)
(1)
Hanson, Frank Blair
(1)
Hanson, Laura E.
(1)
Hare, George Harrison
(1)
Hare, Robert, 1781-1858
(1)
Harpers Ferry (W. Va.) -- History -- John Brown's Raid, 1859
(1)
Harriman, Mrs.
(1)
Harriman, Mrs. E. H.
(1)
Harris, J. A.
(1)
Harris, Susanna
(1)
Harris, Tzvee N.
(1)
Harris, William
(1)
Harrison, Ross G. (Ross Granville), 1870-1959
(1)
Hartley, David, circa 1731-1813
(1)
Hartmann, Max
(1)
Hartmann, Max, 1876-1962
(1)
Harvard College
(1)
Harvard College Observatory
(1)
Harvard College Observatory -- History
(1)
Harvard University -- Museum of Comparative Zoology
(1)
Harvard University -- Prather Lecturer
(1)
Harvard University -- Students
(1)
Harvard University--Faculty
(1)
Harvard University. Bussey Institution
(1)
Hassler, F. R. -- (Ferdinand Rudolph), -- 1770-1843
(1)
Haverford College
(1)
Haverford College -- History
(1)
Hayes, William
(1)
Hays, I. Minis (Isaac Minis), 1847-1925
(1)
Head, John, -- 1688-1754 -- Archives
(1)
Healing Words (Radio program)
(1)
Heatstroke
(1)
Heberer, Gerhardt, 1901-1973
(1)
Heckewelder, John Gottlieb Ernestus (1743-1823)
(1)
Heckewelder, John Gottlieb Ernestus, 1743-1823
(1)
Heidelberger, Michael
(1)
Heisenberg, Werner, 1901-1976
(1)
Heitz, Emil
(1)
Helvétius, Anne-Catherine, 1719?-1800
(1)
Hematology
(1)
Hemoglobin
(1)
Henle, Gertrude
(1)
Henle, Warner, 1910-1987
(1)
Hepatoma
(1)
Heredity.
(1)
Hermosillo (Mexico)
(1)
Hershey, A. D. (Alfred Day)
(1)
Hershey, Alfred Day
(1)
Hertz, Mathilde
(1)
Hessians
(1)
Hibbard, Claude William, 1905-
(1)
Hirado-han (Japan)
(1)
Hiroshima-shi (Japan)
(1)
Historic buildings -- Canada
(1)
Historic buildings -- Delaware River Valley (N.Y.-Del. and N.J.)
(1)
Historic buildings -- United States
(1)
Historic sites -- New Jersey -- Directories
(1)
Historic sites -- Pennsylvania -- Directories
(1)
Historical Society of Pennsylvania
(1)
History of biology, especially genetics -- Darwin, Charles
(1)
History of biology, especially genetics -- Morgan, Thomas Hunt
(1)
History of computing
(1)
History of the earth and animated nature
(1)
History, Modern.
(1)
History.
(1)
Hoaglin, David C. (David Caster), 1944-
(1)
Hobbs, William Herbert, -- 1864-1952 -- Biography
(1)
Hodge, Sarah Bache, 1798-1849
(1)
Hodgkin, Alan L.
(1)
Hoffstetter, Robert
(1)
Hogben, Lancelot
(1)
Hollywood (Md.)
(1)
Holtfreter, Johannes
(1)
Holyoke, Edward Augustus, 1728
(1)
Hondius, J.J.E.
(1)
Honors -- Belling Prize
(1)
Honors -- Career Development Award
(1)
Honors -- Darwin medal
(1)
Honors -- Elliot Medal
(1)
Honors -- Lawrence Award
(1)
Honors -- Mendel Medal
(1)
Honors -- National Academy of Sciences
(1)
Honors -- National Medal of Science
(1)
Honors -- Sc.D.
(1)
Honors -- University of Rochester
(1)
Hooijer, Dirk Albert
(1)
Hook, Ernest B., 1936-
(1)
Hoover, Margaret
(1)
Hopi Indians
(1)
Hopwood, Arthur Tindell, 1897-
(1)
Hormones, Sex.
(1)
Horses
(1)
Horses -- Breeding
(1)
Horses -- Canada -- History
(1)
Horses -- Evolution
(1)
Horses -- Folklore
(1)
Horses -- Genetics
(1)
Horses -- Social aspects
(1)
Horticulture.
(1)
Hosack, David, -- 1769-1835
(1)
Hospitals -- Pennsylvania -- Philadelphia.
(1)
Hospitals -- United States -- Civil War, 1861-1865.
(1)
House Un-American Activities Committee
(1)
Howard, John, 1726-1790
(1)
Hsu, Francis K.
(1)
Hughes-Schrader, Sally
(1)
Huizinga, Johan, 1872-1945
(1)
Human Betterment Foundation
(1)
Human beings -- Origin
(1)
Human evolution, physical anthropology -- Jamaicans
(1)
Human evolution, physical anthropology -- Race
(1)
Human genetics -- Africa
(1)
Human genetics -- Blood groups
(1)
Human genetics -- Color blindness
(1)
Human genetics -- Dermatological genetics
(1)
Human genetics -- Diabetes
(1)
Human genetics -- Down's Syndrome
(1)
Human genetics -- Epilepsy
(1)
Human genetics -- Hairy ears
(1)
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(1)
Human genetics -- India
(1)
Human genetics -- Medical genetics
(1)
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(1)
Human genetics -- Nomenclature
(1)
Human genetics -- Odor
(1)
Human genetics -- Taste
(1)
Human genetics -- Y-chromosome
(1)
Human population genetics.
(1)
Human reproduction -- Endocrine aspects.
(1)
Humboldt, Alexander von, -- 1769-1859
(1)
Humboldt, Alexander von, 1769-1859
(1)
Hunting
(1)
Huskins, C. Leonard
(1)
Hybridization
(1)
Hyde, James Hazen, 1876-1959
(1)
Hydrogen bomb
(1)
Hymes, Dell H.
(1)
Hypnotism
(1)
Hypocalcemia
(1)
Hypoglycemia
(1)
Ibsen
(1)
Ideas (Radio program)
(1)
Illustrated books
(1)
Iltis, Hugo
(1)
Immigrants -- Pennsylvania -- Philadelphia
(1)
Immunogenetics
(1)
Independence Hall Association.
(1)
India -- Description and travel.
(1)
Indiana University
(1)
Indians -- Origin
(1)
Indians of Central America -- Costa Rica
(1)
Indians of Mexico
(1)
Indians of North America
(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
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(1)
Indians of the United States -- Pennsylvania
(1)
Indulgences
(1)
Industrial museums -- Directories
(1)
Industrial policy -- History
(1)
Industrialization -- Pennsylvania -- History
(1)
Industries -- Pennsylvania -- History
(1)
Influenza -- United States
(1)
Influenza.
(1)
Ingersoll, Jared, 1722-1781
(1)
Ingraham, Mark Hoyt
(1)
Inland navigation -- United States
(1)
Institut de France
(1)
Institute for Medical Research
(1)
Institute for Sex Research
(1)
Institute of Mathematical Statistics.
(1)
Institute on Religion in an Age of Science
(1)
Institutional Records
(1)
Insurance -- Great Britain
(1)
Intellectual life -- History
(1)
Inter-American Statistical Institute
(1)
Intermarriage
(1)
International Anatomical Nomenclature Committee
(1)
International Botanical Congresses
(1)
International Business Machines Corporation.
(1)
International Cell Research Organization
(1)
International Commission on Zoological Nomenclature
(1)
International Committee on Nomenclature of Viruses
(1)
International Congress of Eugenics
(1)
International Congress of Eugenics -- Exhibits
(1)
International Congress of Eugenics -- First Congress
(1)
International Congress of Eugenics -- Second Congress
(1)
International Congress of Eugenics -- Third Congress
(1)
International Congress of Genetics -- Eighth Congress
(1)
International Congress of Human Genetics
(1)
International Congress of Human Genetics -- First Congress
(1)
International Congress of Human Genetics -- Second Congress
(1)
International Congress of Pediatrics
(1)
International Congress of Zoology -- Eighth Congress
(1)
International Congress of Zoology -- First Congress
(1)
International Congress of Zoology -- Second Congress
(1)
International Congress of Zoology -- Seventeenth Congress
(1)
International Congress of Zoology -- Seventh Congress
(1)
International Congress of Zoology -- Sixteenth Congress
(1)
International Congress of Zoology -- Thirteenth Congress
(1)
International Geological Congress
(1)
International Organization for Standardization
(1)
International Organization of Old Testament Scholars
(1)
International Society of Magnetic Resonance
(1)
International Society on Oxygen Transport to Tissue
(1)
International Statistical Institute.
(1)
International Trade.
(1)
International Union of Biochemistry
(1)
International cooperation
(1)
International relations.
(1)
Inuit -- Greenland
(1)
Inventors
(1)
Invitations -- Columbia University
(1)
Invitations -- Lankenau Hospital Research Institute
(1)
Invitations -- Marine Experimental Station
(1)
Invitations -- Stern, Curt
(1)
Invitations -- Switzerland
(1)
Invitations -- University of California, Berkeley
(1)
Invitations -- University of Munchen
(1)
Invitations.
(1)
Iowa State University
(1)
Irish -- Pennsylvania
(1)
Irish -- Pennsylvania -- Philadelphia
(1)
Iron and steel bridges
(1)
Iron industry and trade -- History
(1)
Iroquoian languages
(1)
Iroquois Indians -- Agriculture
(1)
Iroquois Indians -- Government relations
(1)
Iroquois Indians -- History
(1)
Iroquois Indians -- Music
(1)
Iroquois Indians -- Religion
(1)
Iroquois Indians -- Social conditions
(1)
Iroquois Indians -- Social life and customs
(1)
Israel -- Antiquities.
(1)
Israel, Vance
(1)
Italy -- Description and travel -- 18th century
(1)
Italy -- Intellectual life -- 18th century
(1)
Italy -- Revolution of 1848
(1)
Italy -- War of 1859
(1)
Jackhead (Man.)
(1)
Jackhead (Man.) -- History
(1)
Jackson, Charles T. -- (Charles Thomas), -- 1805-1880
(1)
Jackson, Halliday,1771-1835.
(1)
Jackson, John
(1)
Jacob, Francois
(1)
Jacob, Francois, 1920-2013
(1)
Jameson, J. Franklin (John Franklin), 1859-1937
(1)
Janeway, Charles A.
(1)
Jardine, William, Sir, 1800-1874
(1)
Jefferson family
(1)
Jefferson, Thomas, 1743-1826 Biography
(1)
Jeffries, John, -- 1745-1819
(1)
Jena, Battle of, Jena, Germany, 1806
(1)
Jenkins, Farish A., 1940-
(1)
Jennings, Francis P.
(1)
Jensen, Arthur Robert
(1)
Jepsen, Glenn Lowell, 1904-
(1)
Jesus Christ
(1)
Jewett, Frank B. (Frank Baldwin)
(1)
Jews -- Antiquities.
(1)
Jews -- Biography
(1)
Jews -- Civilization
(1)
Jews -- Pennsylvania -- Philadelphia -- History
(1)
Jews -- United States
(1)
John Innes Horticultural Institution
(1)
John Simon Guggenheim Memorial Foundation
(1)
Johns Hopkins University. Students
(1)
Jollos, Victor
(1)
Jones, Donald F.
(1)
Jones, Hardin B.
(1)
Joseph Bonaparte, -- King of Spain, -- 1768-1844 -- Biography
(1)
Journal of Neurophysiology
(1)
Judd, Burke H.
(1)
Jullien, Marc-Antoine, 1775-1848
(1)
Junto
(1)
Junto (Philadelphia, Pa.) -- History.
(1)
Jupiter (Planet)
(1)
Kagoshima-shi (Japan)
(1)
Kaingang Indians
(1)
Kaiser-Wilhelm Institutes
(1)
Kaiser-Wilhelm Institutes -- Biology
(1)
Kane , John K. (John Kintzing), 1795-1858
(1)
Kane, Elisha Kent, -- 1820-1857
(1)
Kane, Elisha Kent, 1820-1857
(1)
Kane, Paul, 1810-1871
(1)
Kane, Thomas Leiper, -- 1822-1883
(1)
Karush, Fred
(1)
Kaspar, Peter
(1)
Kaudewitz, Fritz
(1)
Kaufmann, Berwind Peterson
(1)
Kearsley, John, -- d. 1777
(1)
Keeler, Clyde A.
(1)
Keesing, Roger M.
(1)
Kehoe, John, 1837-1878
(1)
Kellenberger, Eduard
(1)
Kellogg, Remington, 1893-
(1)
Kermack, K. A. (Kenneth A.)
(1)
Kevles, David J.
(1)
Kiefer, Barry I.
(1)
Kimball, Richard Fuller
(1)
Kimura, Motoo
(1)
Kings and rulers
(1)
Kinship -- Micronesia.
(1)
Kinzua Dam (Pa.)
(1)
Kirkaldy, J. S.
(1)
Klebs, Arnold C. (Arnold Carl), 1870-1943
(1)
Klein, Randolph Shipley.
(1)
Knox, Henry, 1750-1806
(1)
Kober medal
(1)
Kodani, Masue
(1)
Kodani, Masuo
(1)
Koffka, Kurt, 1886-1941
(1)
Koller, Peo Charles
(1)
Koltsov, N. K.
(1)
Komai, Taku
(1)
Koop, C. Everett (Charles Everett), 1916-2013
(1)
Koostatak (Man.)
(1)
Kozinski, Andrzej W.
(1)
Kraho Indians
(1)
Kraitsir, Charles V., 1804-1860
(1)
Krebs, Hans Adolf, Sir
(1)
Krogman, Wilton Marion, 1903-1987
(1)
Kruskal, William, 1919-2005
(1)
Kuhn, Alfred
(1)
Kuhn-Schnyder, Emil
(1)
Kungl. Svenska vetenskapsakademien -- History
(1)
Kurtén, BjC6rn
(1)
Kwakiutl Indians
(1)
Köhler, Wolfgang,1887-1967.
(1)
La Rochefoucauld-Liancourt, François-Alexandre-Frédéric, Duc de, 1747-1827
(1)
Labor and laboring classes -- Pennsylvania -- History
(1)
Labor movements -- History
(1)
Labor, industrialization
(1)
Laboratories
(1)
Laboratory notebooks
(1)
Labrador (N.L.)
(1)
Lame Deer (Mont.)
(1)
Lammot family
(1)
Lamps
(1)
Land and Speculation
(1)
Land use -- Ohio
(1)
Landauer, Walter, 1896-1978
(1)
Landscape architecture
(1)
Language and languages -- Orthography and spelling
(1)
Language attrition
(1)
Language, Universal
(1)
Lantern slides
(1)
Laporte, Léo F.
(1)
Latarjet, Raymond
(1)
Lathrop, John, 1740-1816
(1)
Latin language
(1)
Lattimore, Owen, 1900-
(1)
Laughlin, Harry Hamilton
(1)
Laurens, Henry, 1724-1792
(1)
Lavocat, René
(1)
Lavoisier, Antoine Laurent, -- 1743-1794
(1)
Law
(1)
Law -- Periodicals
(1)
Law -- Societies, etc.
(1)
Law -- United States -- History -- 19th century
(1)
Law -- Virginia
(1)
Lawyers.
(1)
Lay, Benjamin, -- 1677-1759
(1)
Layrisse, Miguel
(1)
Le Roy, Jean Baptiste, 1720-1800
(1)
LeFever, H. Michael
(1)
Leadership
(1)
Leakey, L. S. B. (Louis Seymour Bazett), 1903-1972
(1)
Leakey, Louis Seymour Bazett
(1)
Learned institutions and societies -- History
(1)
Learned institutions and societies.
(1)
Lechat, M. F. (Michel F.), 1927-2014 -- Correspondence
(1)
Lecture notes.
(1)
Lectures, public speaking -- Dobzhansky memorial
(1)
Lectures, public speaking -- Eulogy
(1)
Lectures, public speaking -- Experimental evolution
(1)
Lectures, public speaking -- Israel
(1)
Lectures, public speaking -- Japan
(1)
Lectures, public speaking -- Medawar, Peter Brian
(1)
Lectures, public speaking -- Radio broadcasts
(1)
Lectures, public speaking -- Rockefeller University
(1)
Lectures, public speaking -- Sigma Xi
(1)
Lectures, public speaking -- Stern, Curt
(1)
Lectures, public speaking -- University of California, Berkeley
(1)
Lectures, public speaking -- Wells College
(1)
Ledgers.
(1)
Lee, Arthur, 1740-1792
(1)
Lee, Henry
(1)
Leesburg (Ship)
(1)
Legal documents.
(1)
Legislative bills -- National Science Foundation Act
(1)
Lehigh Coal and Navigation Company
(1)
Lehigh University.
(1)
Leiper, Mary B.
(1)
Leland, Waldo Gifford, 1879-1966
(1)
Lent, Fritz
(1)
Leprosy.
(1)
Lerner, I. Michael (Isadore Michael), 1910-1977
(1)
Lesueur, Charles Alexandre, -- 1778-1846
(1)
Letchworth Village
(1)
Letombe, Philippe Joseph
(1)
Letterbooks.
(1)
Leukemia.
(1)
Levi-Strauss, Claude
(1)
Levine, Paul
(1)
Lewin, Kurt, 1890-1947
(1)
Lewis, Edward B.
(1)
Lewis, Edward B., 1918-2004
(1)
Lewis, Edwin O.,b. 1879.
(1)
Lewis, John Frederick, 1860-1932
(1)
Lewis, Meriwether, -- 1774-1809
(1)
Lewis, Meriwether, 1774-1809
(1)
Lewontin, Richard Charles
(1)
Lexington, Battle of, 1775
(1)
Libby, William J.
(1)
Liberty Bell
(1)
Library Company of Philadelphia
(1)
Library of Congress
(1)
Library rules and regulations
(1)
Library science -- Congresses
(1)
Life Magazine
(1)
Life expectancy
(1)
Life preservers
(1)
Light
(1)
Lightning
(1)
Lightning conductors
(1)
Lillegraven, Jason A., 1938-
(1)
Lindbergh, Charles A. (Charles Augustus), 1902-1974
(1)
Lindsey, Theophilus
(1)
Linear energy transfer
(1)
Linguistic theory
(1)
Linguists
(1)
Linné, Carl von, -- 1707-1778
(1)
Lions
(1)
Lipmann, Fritz
(1)
Lippincott's magazine of literature, science and education
(1)
Little Grand Rapids (Man.)
(1)
Little, Clarence Cook
(1)
Liver Cancer
(1)
Livingston, Burton E. (Burton Edward), 1875-1948
(1)
Lloyd, John T.
(1)
Locks and keys
(1)
Locusts
(1)
Logan, James, 1674-1751
(1)
Logarithms
(1)
Logbooks.
(1)
London (England) -- Buildings.
(1)
London (England) -- Maps
(1)
Long Island Biological Association
(1)
Long, Esmond R. (Esmond Ray)
(1)
Long, Stephen Harriman, -- 1784-1864
(1)
Long, Stephen Harriman, -- 1784-1864. -- Expedition to the Rocky Mountains, 1819-1820
(1)
Longitude.
(1)
Lord's prayer
(1)
Lotteries
(1)
Louis Philippe, King of the Fr
(1)
Louisiana Purchase -- Enclopedias.
(1)
Lounsbury, Floyd Glenn, 1914-1998
(1)
Lovell, H. H.
(1)
Lowell (Mass.) -- History
(1)
Lowell Observatory
(1)
Luck, James Murray
(1)
Lull, Richard Swann, 1867-1957
(1)
Lumadrama
(1)
Luria, S. E. (Salvador Edward), 1912-1991
(1)
Lush, Jay L. (Jay Laurence), 1896-1982
(1)
Lwoff, Andre
(1)
Lyceum of Natural History (New York, N.Y.)
(1)
Lyceums.
(1)
Lyell, Charles, Sir
(1)
Lyman, Benjamin Smith, -- 1835-1920
(1)
Lysenko, Trofim, 1898-1976
(1)
MacKnight, Robert H.
(1)
Machinery.
(1)
Macusi Indians
(1)
Magazine Audience Group
(1)
Magic squares
(1)
Magna Carta
(1)
Maize -- Genetics
(1)
Makah Indians -- Folklore
(1)
Makah Indians -- History
(1)
Malaria
(1)
Malecite Indians -- Religion
(1)
Mali
(1)
Maltenberger, M.B.
(1)
Mammals -- Evolution
(1)
Mammals, Fossil
(1)
Mammoths.
(1)
Mampell, Klaus
(1)
Manhattan Project (U.S.)
(1)
Manitoba
(1)
Manitou (Algonquian deity)
(1)
Mansell, Judith
(1)
Manuscripts (for publication).
(1)
Map drawing -- United States
(1)
Maps -- Bibliography
(1)
Marceau, Henri, -- 1896-1969 -- Biography
(1)
Maria Mitchell Association
(1)
Marine Biological Laboratory, Woods Hole -- Gene Conferences
(1)
Marine biology.
(1)
Maritime law -- United States
(1)
Maroons
(1)
Marriage and Family Life
(1)
Marriage customs and rites -- Russia
(1)
Marshall, John, -- 1755-1835
(1)
Marshall, Larry G.
(1)
Marshall, Mac
(1)
Martial law -- Philadelphia (Pa.)
(1)
Maruba Indians
(1)
Maryland -- History
(1)
Mason, John Alden, 1885-1967
(1)
Massachusetts -- Finance
(1)
Massachusetts -- History -- Revolution, 1775-1783
(1)
Mastodon
(1)
Mastodon -- Exhibitions
(1)
Mathematical Association of America.
(1)
Mathematical instruments
(1)
Mathematical statistics.
(1)
Mathematicians
(1)
Mathematics
(1)
Mathematics - Tables
(1)
Mathematics -- History
(1)
Mathematics -- Societies, etc.
(1)
Mather, Kenneth, 1911-1990
(1)
Mato Grosso do Sul (Brazil : State)
(1)
Matthew, William Diller, 1871-
(1)
Matthews, Maureen Anne, 1949-
(1)
Mauritius
(1)
Max-Planck Institutes
(1)
Maxims
(1)
Maybury-Lewis, David
(1)
McAllister, Robert M.
(1)
McClellan, Catharine
(1)
McClung, Clarence Erwin
(1)
McGill University
(1)
McGrew, Paul Orman, 1909-
(1)
McGuinness, Aims C. (Aims Chamberlain), 1905-1988
(1)
McKenna, Malcolm C.
(1)
McKusick, Victor A., (Victor Almon), 1921-2008
(1)
Mecom, Jane, 1712-1794
(1)
Medals
(1)
Medawar, P. B. (Peter Brian), 1915-1987
(1)
Medawar, Peter Brian
(1)
Medical colleges -- Pennsylvania -- Philadelphia -- History
(1)
Medical education -- History. -- Pennsylvania
(1)
Medical education -- United States.
(1)
Medical museums
(1)
Medical sciences -- Periodicals
(1)
Medicine -- 19th century
(1)
Medicine -- Congresses
(1)
Medicine -- Early works to 1800 -- Bibliography
(1)
Medicine -- History -- Bibliography
(1)
Medicine -- History -- Study and teaching
(1)
Medicine -- History.
(1)
Medicine -- Humor
(1)
Medicine -- Pennsylvania -- Philadelphia
(1)
Medicine -- Periodicals
(1)
Medicine -- Research -- United States.
(1)
Medicine -- Societies, etc. -- History
(1)
Medicine -- Societies, etc. -- United States
(1)
Medicine -- Study and teaching.
(1)
Medicine -- United States
(1)
Medicine -- United States -- Bibliography
(1)
Medicine biography
(1)
Medicine.
(1)
Medvedev, Zhores A., 1925-2018
(1)
Meigs, Anna
(1)
Melvin, Frank Edgar
(1)
Membership cards
(1)
Memegwesiwag (Radio program)
(1)
Memoranda.
(1)
Memorials -- Great Britain
(1)
Memory
(1)
Menageries -- Boston (Mass.)
(1)
Menageries -- Great Britain
(1)
Menageries -- Philadelphia
(1)
Mencken, H. L. (Henry Louis), 1880-1956
(1)
Menus.
(1)
Mercantile Library of Philadelphia
(1)
Mercantile system
(1)
Merchant mariners -- United States
(1)
Mercury
(1)
Meredith, William, 1772-1844
(1)
Merino sheep
(1)
Meritt, Benjamin Dean, 1899-1989
(1)
Merriam, John C. (John Campbell), 1869-1945
(1)
Merrill, Elmer Drew, 1876-1956
(1)
Mesmerism
(1)
Mesmerism -- France
(1)
Mesmerism.
(1)
Metabolic disorders in children.
(1)
Meteorology
(1)
Meteorology - Observations
(1)
Meteorology -- Observations -- England -- London
(1)
Meteorology -- Observations.
(1)
Meteorology -- Tables
(1)
Meteorology.
(1)
Meteors.
(1)
Metzger, Wolfgang, 1899-1979.
(1)
Mexican War, 1846-1848
(1)
Mexico -- Description and travel.
(1)
Mexico -- History -- 1821-1861
(1)
Mexico -- History -- Sources
(1)
Meyerhoff, Howard A. (Howard Augustus)
(1)
Mice -- Genetics
(1)
Microbial genetics
(1)
Microbiology -- History
(1)
Microscopy.
(1)
Middleton, Dorothy Clarke
(1)
Mifflin, John F. (John Fishbourne), 1759-1813
(1)
Migliazza, Ernest C.
(1)
Mike, Valerie, 1934-
(1)
Miles, Suzanna Whitelaw, -- 1922-1966
(1)
Miles, Suzanna Whitelaw, -- 1922-1966 -- Bibliography
(1)
Military History
(1)
Mille Lacs Lake (Minn.)
(1)
Millegan, Robert
(1)
Millenialism
(1)
Miller, Dwight D.
(1)
Miller, Robert W., 1921-2006
(1)
Mills and millwork
(1)
Milpa Alta (Mexico)
(1)
Mind and body
(1)
Mineralogy
(1)
Minnedosa (Man.)
(1)
Minnesota Historical Society.
(1)
Mintz, Beatrice
(1)
Minutes.
(1)
Mirsky, Alfred Ezra
(1)
Miscellaneous
(1)
Missionaries -- China.
(1)
Mississippi River Valley -- Description and travel
(1)
Missourium
(1)
Mitchell, Maria, -- 1818-1889
(1)
Mitchell, S. Weir (Silas Weir), 1829-1914
(1)
Mitchill, Samuel L. (Samuel Latham), 1764-1831
(1)
Mites
(1)
Modern Language Association of America
(1)
Mohawk Indians
(1)
Mohawk Indians -- Folklore
(1)
Mohawk Nation at Akwesasne
(1)
Mohawk language
(1)
Mohawk language -- Texts
(1)
Mohegan Indians -- Religion
(1)
Mohr, Otto Louis, 1886-
(1)
Molecular biology -- History -- Bibliography -- Computer programs.
(1)
Molecular biology -- History -- Bibliography.
(1)
Molecular biology -- Manuscripts -- Indexes.
(1)
Mollusks
(1)
Mollusks.
(1)
Molly Maguires
(1)
Moments method (Statistics)
(1)
Mongoloid race
(1)
Monk, Maria, d. 1850
(1)
Monod, Jacques, 1910-1976
(1)
Montagnais Indians
(1)
Montagu, Ashley, 1905-1999
(1)
Montauk Indians
(1)
Montgomery, Charles B (Charles
(1)
Moral philosophy
(1)
Morgan, Arthur Ernest, 1878-19
(1)
Morgan, John, -- 1735-1789 -- Biography
(1)
Morgan, Thomas Hunt, 1866-1945
(1)
Morgenstern, Oskar
(1)
Morris, Robert, 1734-1806
(1)
Morris, Roland Sletor, 1874-19
(1)
Mortality -- Pennsylvania
(1)
Morton, Newton
(1)
Morton, Newton E., (Newton Ennis), 1929-
(1)
Morton, W. T. G. -- (William Thomas Green), -- 1819-1868
(1)
Mossige, Jeanne Coyne
(1)
Mosteller, Frederick, 1916-
(1)
Mother Earth (Radio program)
(1)
Mothers
(1)
Motulsky, Arno G. , 1923-
(1)
Mound builders
(1)
Mound-builders -- United States
(1)
Mounds (Burial)
(1)
Mounds -- United States
(1)
Mount Hope Farm
(1)
Mount Vernon School (Boston, Mass.)
(1)
Muhlenberg, Henry, -- 1753-1815
(1)
Mumps
(1)
Munch, E.
(1)
Munchen
(1)
Munro, Dana Carleton, 1866-1933
(1)
Murdock, George Peter, 1897-1985
(1)
Murphy, Robert Cushman, 1887-1973
(1)
Museo Municipal de Ciencias Naturales, Argentina
(1)
Museo Nacional de Historia Natural, Buenos Aires
(1)
Museo de la Plata, Argentina
(1)
Museum of History and Technology (U.S.)
(1)
Museums
(1)
Museums -- Manitoba
(1)
Museums -- New York (State) -- New York.
(1)
Museums -- Ontario
(1)
Museums -- United States
(1)
Music -- Curaçao
(1)
Music -- Scores.
(1)
Musical scores.
(1)
Mustard
(1)
Mustard gas
(1)
Mutual Assurance Company for Insuring Houses from Loss by Fire
(1)
Mysticism
(1)
NASA Astrobiology Institute
(1)
Nachtsheim, Hans
(1)
Nahuas -- Folklore
(1)
Names, Cheyenne
(1)
Nassau County Association.
(1)
Nassy, David de Isaac Cohen, -- 1747-1806
(1)
National Academy of Sciences -- Committee on the Biological Effects of Atomic Radiation - Genetics Panel
(1)
National Academy of Sciences -- Kimber Award
(1)
National Aeronautics and Space Administration (NASA)
(1)
National Assessment of Educational Progess (Project)
(1)
National Association for Retarded Children
(1)
National Bureau of Economic Research (U.S.)
(1)
National Cancer Institute (U.S.)
(1)
National Council on Radiation Protection
(1)
National Foundation for Infantile Paralysis
(1)
National Gallery of Art (U.S.)
(1)
National Quality Control Society
(1)
National Research Council Commission on Mathematics
(1)
National Research Council. Committee on Common Problems in Genetics an
(1)
National Research Foundation
(1)
National Science Foundation (U.S.)
(1)
National Science Foundation (U.S.).
(1)
National Science Foundation -- Committee activities
(1)
National Security Resources Board
(1)
National songs -- United States
(1)
Native American Materials
(1)
Nativistic movements
(1)
Natural Philosophy
(1)
Natural history -- 18th century
(1)
Natural history -- 19th century
(1)
Natural history -- Societies, etc.
(1)
Natural history -- South America
(1)
Natural history -- Technique
(1)
Natural history -- United States.
(1)
Naturalists.
(1)
Navajo Indians
(1)
Neah Bay (Wash.)
(1)
Near infrared spectroscopy
(1)
Nebel, Bernard R.
(1)
Nebulae
(1)
Needham, Joseph, 1900-1995
(1)
Neefe, John R.
(1)
Nelson, Gareth J.
(1)
Nelson, Waldo E.
(1)
Nemec, Bohumil
(1)
Nesse, Randolph M.
(1)
Neurologists -- United States.
(1)
Neurology.
(1)
New Jersey -- Politics and government
(1)
New Jersey Bell Telephone Company
(1)
New Orleans Canal and Banking Company
(1)
New World (Ship)
(1)
New York Academy of Sciences
(1)
New York Botanical Garden.
(1)
New York Telephone Company
(1)
New York University
(1)
Newark College of Engineering
(1)
Newell, Norman Dennis, 1909-2005
(1)
Newspaper clippings
(1)
Newspaper clippings.
(1)
Newspapers -- Pennsylvania -- Kane
(1)
Nicollet, J. N. -- (Joseph Nicolas), -- 1786-1843
(1)
Niswander, Jerry D.
(1)
Nixon, Richard M. (Richard Milhous), 1913-1994
(1)
Nobel Committee for Physiology or Medicine
(1)
Nobel Prizes
(1)
Noone, Ernest
(1)
Nootka Indians -- Folklore
(1)
Nootka Indians -- History
(1)
Nootka Indians -- Music
(1)
North Atlantic Treaty Organization. -- Committee on Scientific and Tec
(1)
North Pole.
(1)
North, M. L. -- (Milo Linus), -- 1789-1856
(1)
Northampton County (Pa.) -- History
(1)
Northrop, John Howard, 1891-1987
(1)
Northwestern University
(1)
Notes.
(1)
Novitski, Edward
(1)
Nuclear magnetic resonance.
(1)
Nuclear physics.
(1)
Nuclear weapons
(1)
Nutrition -- Psychological aspects
(1)
Nuttall, Thomas, -- 1786-1859 -- Biography
(1)
Nuttall, Thomas, 1786-1859
(1)
Oak Ridge National Laboratory. Advisory Committee for Biology
(1)
Occultism
(1)
Oceanography -- History
(1)
Oceanography.
(1)
Ochoa, Severo, 1905-1993
(1)
Odometers
(1)
Odriozola, Miguel
(1)
Offerman, Carlos
(1)
Office of Ordnance Research (U.S.)
(1)
Office of Statistical Standards (U.S.)
(1)
Ohio State University
(1)
Ojibwa
(1)
Ojibwa Indians -- Canada
(1)
Ojibwa Indians -- Canada -- Economic conditions
(1)
Ojibwa Indians -- Canada -- Education
(1)
Ojibwa Indians -- Canada -- Folklore
(1)
Ojibwa Indians -- Canada -- History
(1)