History 373 Biography 136 Politics and government 127 Fiction 91 Description and travel 84 History and criticism 84 Social life and customs 64 English fiction 62 Criticism and interpretation 50 Economic conditions 49 Periodicals 49 Education 43 English drama 43 Foreign relations 42 Drama 37 Social conditions 37 Collections 33 Science 33 Congresses 31 Civilization 30 Theater 30 Economic policy 29 Geology 27 Bibliography 26 Philosophy 25 Physics 23 Ethnology 22 Sources 21 English literature 20 World War, 1939-1945 20