Author: Iriving, Roland Duer
Title: The Copper-Bearing Rocks of Lake Superior
Description: Washington, Gov't Print. Office, 1883. Pp. 89-188, b/w and colored illus.(including foldouts), bound in blue stiff blue paper.(Extract from the 3rd Annual Report of the U.S. Geological Survey for 1881/2). .

Keywords: Americana Lake Superior Geology