Botany 20,870 Ver registros Plants 20,484 Ver registros History 20,206 Ver registros Herbaria 20,121 Ver registros Politics and government 8,347 Ver registros Social conditions 7,185 Ver registros Women 6,830 Ver registros Women's rights 5,984 Ver registros English language 4,342 Ver registros Agriculture 2,952 Ver registros Economic conditions 2,804 Ver registros Law 2,263 Ver registros Education 2,048 Ver registros Grammar 1,970 Ver registros Medicine 1,829 Ver registros Study and teaching 1,791 Ver registros Composition and exercises 1,613 Ver registros Grasses 1,613 Ver registros History and criticism 1,516 Ver registros Science 1,492 Ver registros Foreign relations 1,413 Ver registros Commerce 1,412 Ver registros Business 1,384 Ver registros Mimosaceae 1,285 Ver registros Legumes 1,270 Ver registros Chemistry 1,267 Ver registros Population 1,190 Ver registros Operas 1,188 Ver registros Description and travel 1,110 Ver registros Research 1,110 Ver registros Dao jiao shi 1,018 Ver registros Fo jiao shi 1,018 Ver registros Euphorbiaceae 1,002 Ver registros Compositae 994 Ver registros Civilization 986 Ver registros Law and legislation 984 Ver registros Rubiaceae 942 Ver registros Biology 895 Ver registros Musicals 884 Ver registros Sources 877 Ver registros World War, 1939-1945 857 Ver registros Law reports, digests, etc 839 Ver registros Acacia 836 Ver registros Economics 835 Ver registros Appropriations and expenditures 833 Ver registros Readers (Elementary) 805 Ver registros Tibetan language 788 Ver registros Geology 782 Ver registros Industries 775 Ver registros Caesalpiniaceae 760 Ver registros French drama 700 Ver registros Islam 699 Ver registros Finance, Public 691 Ver registros Economic aspects 688 Ver registros Antiquities 673 Ver registros Art 669 Ver registros Orthography and spelling 668 Ver registros Kings and rulers 655 Ver registros Anglais (Langue) 653 Ver registros Spellers 647 Ver registros Forests and forestry 631 Ver registros Statesmen 626 Ver registros Readers 616 Ver registros Social life and customs 614 Ver registros Legal status, laws, etc 611 Ver registros Economic policy 596 Ver registros Statistics 596 Ver registros Accounting 588 Ver registros Communism 588 Ver registros Colonies 586 Ver registros Periodicals 581 Ver registros Music 578 Ver registros Finance 575 Ver registros Apocynaceae 573 Ver registros Philosophy 573 Ver registros Economic history 563 Ver registros Histoire 557 Ver registros Dissertations 550 Ver registros Study and teaching (Secondary) 547 Ver registros Technology 545 Ver registros Employment 539 Ver registros Missions 535 Ver registros Readers (Primary) 532 Ver registros African Americans 524 Ver registros Socialism 506 Ver registros Lamiaceae 499 Ver registros Astronomy 498 Ver registros Gazettes 497 Ver registros Conduct of life 496 Ver registros Natural history 487 Ver registros Reformation 487 Ver registros Relations 483 Ver registros Public health 476 Ver registros Liturgy 472 Ver registros Budget 470 Ver registros Indians of North America 464 Ver registros English 460 Ver registros Labor unions 455 Ver registros Mathematics 455 Ver registros Social sciences 455 Ver registros