Missions History 594 Indians of North America 375 Missionaries 119 Church history 111 Periodicals 101 Description and travel 95 Education 75 Theory 75 Discovery and exploration 56 Dakota Indians 42 Catholic Church 40 Chinese rites 39 Evangelistic work 35 Wyandot Indians 31 Christian martyrs 27 Protestant churches 27 Christian saints 25 Religion 25 Biography 22 Clergy 22 Controversial literature 22 Indians of South America 22 Sources 22 African Americans 19 Christianity 18 Eskimos 18 Correspondence 17 Religious aspects 17 Christianity and culture 16 Indians of Mexico 16 Missions, American 15 Voyages and travels 15 African American Catholics 14 Congresses 14