285 History 276 Politics and government 124 Colonies 115 Description and travel 98 Economic conditions 81 Soils 80 Children 73 Agriculture 63 Child welfare 57 Spanish literature 52 Medicine 49 Foreign relations 47 Portuguese 46 Health and hygiene 44 Geology 42 Diseases 35 Law 34 Social conditions 34 Sources 32 Finance 31 Botany 30 History, Military 29 Gazettes 27 Economic policy 27 Missions 24 Portuguese colonies 23 Justice, Administration of 22 Commerce 21 Ethnology 21 Land capability for agriculture