8vo (229 x 139 mm). Large map folding in pocket at rear (a few tiny tears along folds); 4 lithographed maps (2 folding); 22 lithographed plates. (Dampstaining in lower gutter margin, spotting and browning throughout.) Original brown blind-stamped cloth gilt-lettered on spine (some rubbing and staining, minor losses to spine ends). Provenance: Captain John Farnshaw (signatures title and flyleaf); sold Hindman Auctions, 9 November 2022, lot 608. 

FIRST EDITION, the Senate issue, with the astronomical and meteorological observations omitted from the House issue and subsequent editions. The two reports, written with the help of Fremont's wife Jessie Benton, "caught the public imagination: images of Fremont's guide, the then little-known Christopher 'Kit' Carson, riding bareback across the prairie, and Fremont himself, raising a flag on a Rocky Mountain peak, entered the national mythology" (Pamela Herr, ANB). Graff 1436; Howes F-370; Sabin 25845; Streeter VI:3131; Wagner-Camp 115:1.