The Auriferous Gravels of the Sierra Nevada of California (Contriburtions to American Geology Vol. 1)
John Wilson and Son, 1880. First Edition. Hardcover. 569 pages, 9-1/2 by 12 inches. Illustrated in black-and-White with two maps laid in (Map in two sheets of the Tertiary Auriferous Gravel Deposits, and a Map showing the extent of the Hydraulic Mining Operations. A geological survey of the Auriferous Gravels.....