4689980
9781418176280
Under the direction of A. A. Humphreys by Clarence King.United States. Geological Exploration of the Fortieth Parallel. is the author of 'Report of the Geological Exploration of the Fortieth Parallel, made by order of the Secretary of War according to acts of Congress of March 2, 1867, and March 3, 1869 Botany' with ISBN 9781418176280 and ISBN 1418176281.
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