History 711 Indians of North America 537 Social conditions 125 Antiquities 124 Indian art 110 History and criticism 99 Social aspects 99 more ... Emigration and immigration 83 Birds 80 Free trade 78 Colonies 71 Religion 70 Social life and customs 69 Discovery and exploration 68 Politics and government 61 Ethnic relations 59 American literature 57 Economic conditions 57 Indian women 57 Indians, Treatment of 56 Discoveries in geography 54 Ethnic identity 53 Description and travel 50 Race relations 50 Economic integration 49 Indian philosophy 49 Geology 47 Paleontology 47 Government relations 44 Missions 44 less ...