Appleton's Cyclopedia of American Biography, edited by James
Grant Wilson, John Fiske and Stanley L. Klos. Six volumes, New York: D. Appleton
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HAGER, Albert David, geologist, born in Chester, Vermont, 1 November, 1817. He was educated in the common schools of his native place, and in 1856 was assistant state naturalist of Vermont. He was assistant state geologist under Professor Edward Hitch-cock in 1857-'61, and state geologist and curator of the state cabinet of natural history in 1862-'70. In the latter year he was appointed state geologist of Missouri, and since 1877 he has been librarian of the Chicago historical society. Mr. Hager was commissioner from Vermont to the Paris exposition of 1867. He has published "Geology of Vermont," with Professor Hitchcock (2 vols., Claremont, New Hampshire, 1861); the annual reports of the Vermont fish commission (Montpelier, Vermont, 1866-'9); "Economic Geology of Vermont"; and a report on the geological survey of Missouri (1871).
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