Washington: G.P.O., 1846. 29th Congress, 1st Session, Senate Doc. 438, Serial 477. Original wraps. 8vo. 75pp. 12 lithograph plates; large folding map. Stitched wraps (disbound). Light dampstaining throughout, otherwise fine condition (and scarce thus) in modern cloth case with gilt-lettered morocco label at spine. Item #6007
Under Fremont's orders, Abert travelled from Bent's Fort to Raton Pass, down the Canadian River, to Old Fort Holmes, through the Creek Nation ending at Fort Gibson. "It is said that Abert made the first astronomical observations through this unknown country and his report is therefore of special importance. The map is one of great interest." Wheat Transmissippi. Wheat also suggests that Charles Preuss drew the map for publication. The lithograph plates show striking views of West Texas and Oklahoma; one is the noted plate of Bent's Fort. (Wheat Transmissippi 489; Rittenhouse 1; Graff 6; Wagner-Camp 120; Howes A10; Sabin 59).