3,254 Politics and government 2,348 Agriculture 1,963 History 1,792 Economic conditions 1,290 Medicine 1,272 Law 1,240 Periodicals 1,224 Law reports, digests, etc 1,176 Science 1,153 Education 977 Research 967 Commerce 918 Appropriations and expenditures 770 History and criticism 733 Finance, Public 720 Social conditions 677 Gazettes 617 Antiquities 612 Budget 560 Forests and forestry 548 Geology 530 periodicals 527 Civilization 524 Industries 500 Statistics 497 Women 470 Societies, etc 461 German periodicals 446 Finance 442 Music