Book 16,405 Government Document 1,065 Serial 880 Electronic 699 Journal 686 Thesis 686 Conference Proceeding 685 Map 193 Kit 116 Book Chapter 106 Unknown 75 Manuscript 45 Photo 14 Reference Material 7 Audio 2 Physical Object 2 Article 1 Newspaper 1 see all ...

Q - Science 8,722 T - Technology 1,532 S - Agriculture 453 G - Geography, Anthropology, Recreation 343 M - Music 269 D - World History 151 A - General Works 143 Z - Library Science 142 F - General American History 133 R - Medicine 122 H - Social Science 121 N - Fine Arts 107 P - Language and Literature 104 C - Historical Sciences 101 B - Philosophy, Psychology, Religion 72 E - United States History 45 L - Education 42 U - Military Science 38 K - Law 28 V - Naval Science 5 J - Political Science 3 see all ...

Geological Survey (U.S.) 519 Mineralogical Association of Canada 274 Dana, James Dwight, 1813-1895 248 SpringerLink (Online service) 238 Edgar Fahs Smith Memorial Collection (University of Pennsylvania) 175 Geological Association of Canada 165 Mineralogical Society of America 151 De Gruyter 130 Dana, Edward Salisbury, 1849-1935 120 Jameson, Robert, 1774-1854 102 Brush, George Jarvis, 1831-1912 82 British Museum (Natural History) Department of Mineralogy 81 Mineralogical Society (Great Britain) 78 Geological Society of London 75 Utah Geological and Mineralogical Survey 70 Kungl. Svenska vetenskapsakademien 62 Agricola, Georg, 1494-1555 54 International Mineralogical Association General Meeting 53 Geological Society of America 52 American Society for Testing and Materials 50 Haidinger, Wilhelm, 1795-1871 50 United States Bureau of Mines 50 Geochemical Society 48 Brewster, David, 1781-1868 45 Geological Survey of Canada 45 Berzelius, Jöns Jakob, friherre, 1779-1848 43 Kobell, Franz von, 1803-1882 43 Accum, Friedrich Christian, 1769-1838 42 Bergman, Torbern, 1735-1784 42 Werner, Abraham Gottlob, 1749-1817 42 see all ...

English 13,313 German 2,298 French 1,247 Russian 794 Latin 318 Spanish 265 Italian 255 Swedish 185 Chinese 142 Portuguese 89 Japanese 76 Undetermined 67 Czech 50 Arabic 49 Multiple 41 Polish 40 Dutch 36 Danish 30 Ancient Greek 26 Romanian 26 Ukrainian 23 Greek 22 Persian 22 Hebrew 16 Hungarian 14 Norwegian 11 Bulgarian 10 Croatian 7 Korean 7 No linguistic content 7 see all ...

Electronic books 1,071 Periodicals 967 Congresses 913 Early works to 1800 797 Conference papers and proceedings 647 Early works 371 Bibliography 352 Dictionaries 346 History 298 Maps 220 Catalogs and collections 198 Guidebooks 185 Handbooks, manuals, etc 168 Catalogs 132 Pictorial works 132 Bibliographies 126 Classification 124 Handbooks and manuals 110 Tables 98 Biography 97 Academic theses 85 Pre-Linnean works 75 Biographies 56 Electronic journals 56 Nomenclature 56 Textbooks 55 Festschriften 54 Terminology 53 Congrès 50 Aufsatzsammlung 46 see all ...

Early works to 1800 270 19th century 120 Cretaceous 45 18th century 43 Precambrian 43 Paleozoic 31 Tertiary 30 Quaternary 29 20th century 23 From 570 million to 5 billion years ago 22 From 2 million years ago 20 From 65 to 140 million years ago 19 Ordovician 19 1749-1832 17 To 1500 17 Archaean 16 Mesozoic 16 1700-1799 15 1793-1850 15 Proterozoic 15 17th century 14 1801-1900 14 Jurassic 14 1779-1864 13 1790-1849 13 1800-1899 13 Cenozoic 13 Pleistocene 13 Triassic 13 16th century 12 see all ...

United States 402 Utah 280 California 182 Russia (Federation) 172 Italy 166 Germany 163 Canada 161 New York (State) 157 France 144 Great Britain 142 Colorado 138 Earth (Planet) 122 Australia 118 England 116 China 112 Massachusetts 108 Alaska 96 Japan 96 Pennsylvania 95 North America 91 Europe 90 Scotland 90 Brazil 85 Soviet Union 81 India 80 Arizona 68 Nevada 67 Ontario 67 Sweden 66 New Jersey 59 see all ...