[MISSISSIPPI RIVER]. -- BELTRAMI, J.C. A Pilgrimage in Europe and America, Leading to the Discovery of the Sources of the Mississippi and Bloody River. London: Hunt and Clarke, 1828. 2 volumes, 8o, and with the scarce 16-page prospectus. Plates. Modern paper-backed boards. FIRST EDITION IN ENGLISH, INSCRIBED BY BELTRAMI ON THE TITLE (inscription trimmed through). Field 111; Howes B228. -- NICOLLET, I.N. Report Intended to Illustrate a Map of the Hydrographical Basin of the Upper Mississippi Rover. 28th Congress, 2d Session. Doc. No 52. January 11, 1845. Washington, D.C.: Blair and Rives, 1845. 8o. Large folding map. Disbound. (Some light wear and soiling.) (4)