Indians of North America 287 History 119 Congresses 42 Government relations 40 Description and travel 34 Antiquities 32 Biography 23 Missions 22 Social life and customs 21 Birds 20 Economic conditions 20 Periodicals 20 Discovery and exploration 19 Folklore 17 Commerce 16 Lighting 16 Politics and government 16 Social conditions 16 Colonies 15 Legal status, laws, etc 14 Music 14 Education 12 Fiction 12 Frontier and pioneer life 11 Wars 11 Bibliography 10 Botany 10 Geology 10 Identification 10 Mammals 10