Biography 15 English literature 14 American literature 13 History 10 Description and travel 5 Fiction 5 History and criticism 4 Social life and customs 4 Authors, English 3 British 3 Philosophy 3 World War, 1914-1918 3 Ֆրանսիական գրականություն 3 Artists 2 Aunts 2 Authors, French 2 Biology 2 Books 2 Child rearing 2 Childhood and youth 2 Correspondence 2 Failure (Psychology) 2 Homes and hunts 2 Indians of North America 2 Intellectual life 2 Literature 2 Middle-aged men 2 Natural history 2 Older women 2 Poems, American 2