The Source of the Mississippi Comprising I. Letter from Messrs. Ivison, Blakeman, Taylor, & Company II. Report of Hopewell Clarke, Chief of the I.B.T. & Co. Expedition to the Headwaters of the Mississippi, October, 1886.
New York: Ivison, Blakeman & Company, n.y. [probably 1887]. Paperback. Small 4to. Stiff green wrappers. 16pp. Maps. Good. Despite slightly chewed-up outer corners and a bit of general shelfwear, a basically tight and fairly attractive copy. Item #19748
Reprint from the 24 December 1886 issue of "Science."
Price: $45.00