Report upon the Colorado River of the West, Explored in 1857 and 1858; Under the direction of the Office of Explorations and Surveys, A.A. Humphreys, Captain Topographical Engineers, in charge. By order of the Secretary of War
Washington, (DC): Government Printing Office, 1861. First edition, 36th Congress, 1st Session, Senate Ex. Doc. 4to. 131, 14, 154, 30, 6, 31, (1) pp. Illustrated, 25 plates (as called for in "List of Illustrations," plus 6 scientific plates, 8 are chromolithographs), 2 large folding maps, 8 panoramic views, profile. Howes..... More