History 169 Politics and government 45 Economic conditions 37 Foreign relations 24 Addresses, essays, lectures 22 Local government 21 Education 20 Sociology 20 Social conditions 19 Public welfare 15 Social aspects 15 Trade-unions 14 Social sciences 13 Economic policy 12 Political science 11 Capitalism 9 Case studies 9 Cities and towns 9 Social policy 9 Women 9 Economic aspects 8 Economics 8 Political aspects 8 Social service 8 Underdeveloped areas 8 International relations 7 Local finance 7 Mathematical models 7 Methodology 7 Philosophy 7