Geological Survey of Oregon and Washington. January 31, 1857. Mr. Thorington, from the Committee on Public Lands, made the follow report. [To accompany bill H.R. No. 800.].
[Washington]: n.p., 1857. 4 pp. 8vo. Removed. First edition. 34th Congress, 3d Session. House of Representatives. Report No. 171. "Thorington offered a tantalizing glimpse into one of the most daring, most extensive, but most obscure scientific explorations of the West," (White: Plains & Rockies, p. 146). Dr. John Evans (1812-1861)..... More