Description and travel History 733 Travel 573 Social life and customs 525 Manners and customs 387 Politics and government 144 Antiquities 141 more ... Indians of North America 130 Natural history 123 Social conditions 122 Economic conditions 103 Civilization 94 Voyages and travels 90 Discovery and exploration 88 Discoveries in geography 79 Homes and haunts 77 Art 73 History and criticism 66 In literature 61 Missions 58 Travelers 55 Slavery 40 Gold mines and mining 39 Gold discoveries 37 Physical geography 36 Geology 35 British 34 Overland journeys to the Pacific 34 Ethnology 32 Jews 32 less ...