Addresses, essays, lectures History 205 History and criticism 120 Politics and government 105 Criticism and interpretation 86 Economic conditions 64 Social conditions 60 Social aspects 46 Foreign relations 39 Philosophy 38 Economic policy 36 Sociology 35 Economics 33 Cities and towns 31 Women 30 English literature 26 Social sciences 26 Art 25 Underdeveloped areas 25 Psychology 24 Economic aspects 23 International economic relations 21 Social policy 21 Social psychology 21 Civilization 20 Literature 20 Management 20 Economic development 19 Education 19 Historiography 18