Book 17,614 Map 3,174 Government Document 1,690 Electronic 934 Serial 770 Conference Proceeding 734 Unknown 684 Journal 530 Audio 177 Thesis 166 Kit 140 Book Chapter 116 Photo 96 Reference Material 82 Musical Score 30 Manuscript 20 Physical Object 16 Newspaper 10 Article 4 see all ...

E - United States History 3,629 Q - Science 2,974 G - Geography, Anthropology, Recreation 2,441 H - Social Science 1,731 P - Language and Literature 1,609 F - General American History 1,578 N - Fine Arts 894 B - Philosophy, Psychology, Religion 575 Z - Library Science 538 K - Law 486 T - Technology 432 S - Agriculture 425 J - Political Science 321 M - Music 263 D - World History 251 R - Medicine 215 C - Historical Sciences 151 L - Education 110 A - General Works 90 V - Naval Science 60 U - Military Science 48 see all ...

Geological Survey (U.S.) 366 Audubon, John James, 1785-1851 221 De Gruyter 204 Levine, Janet 199 Adam Matthew Digital (Firm) 152 ebrary, Inc 136 National Audubon Society 119 Geological Society of America 84 Gotham Book Mart Collection (University of Pennsylvania) 84 George Clapp Vaillant Book Fund 73 United Nations Economic Commission for Europe 69 Geological Survey of Canada 61 Project Muse 61 EBSCOhost 56 Rand McNally and Company 54 Caroline F. Schimmel Collection of Women in the American Wilderness (University of Pennsylvania) 53 Smithsonian Institution 53 Alexander Street Press 52 Fiske Icelandic Collection 51 National Archives (Great Britain) 51 United States Bureau of Reclamation 49 Great Britain Colonial Office 48 United States Indian Arts and Crafts Board 48 National Wildlife Federation 47 U.S. Fish and Wildlife Service 47 Films for the Humanities & Sciences (Firm) 46 Sanson, Nicolas, 1600-1667 45 Lownes Science Collection (Brown University) 44 Films Media Group 42 Nickles, John M (John Milton), 1859-1945 42 see all ...

English 20,014 French 1,614 Spanish 1,065 Undetermined 515 German 462 Latin 160 Russian 150 Italian 126 Multiple 105 Chinese 68 Japanese 54 Portuguese 54 Dutch 49 Icelandic 42 Arabic 40 North American Indian 35 No linguistic content 29 Swedish 29 Algonquian 18 Hebrew 18 Polish 14 Ojibwa 11 Czech 10 Danish 10 Ukrainian 10 Korean 9 Norwegian 8 Panjabi 8 Central American Indian 7 Greek 7 see all ...

20th century 869 19th century 806 Colonial period, ca. 1600-1775 461 1900-1999 418 18th century 397 To 1763 (New France) 317 21st century 230 17th century 223 To 1763 217 1600-1775 199 1800-1899 192 1900 - 1999 177 Early works to 1800 151 Revolution, 1775-1783 135 2000-2099 129 1700-1799 105 1785-1851 103 20e siècle 99 To 1803 92 1800 - 1899 75 19e siècle 75 1800-1999 69 1775-1783 65 1700-1899 64 18e siècle 60 20e siècle 59 1600 - 1775 56 19e siècle 55 1945- 54 21e siècle 54 see all ...