JOHNSTON, Joseph E., et al. Reports of the Secretary of War, with Reconnaissances of Routes from San Antonio to El Paso. Washington D.C.: Union Office, 1850. Ex. Doc. 64 from the 1st session of the 31st Congress. 8o. Two very large folding maps with routes marked (short tears), and 71 lithographed plates, many of them colored and 3 folding. Half morocco (spine faded). Provenance: Royal College of Surgeons (ink stamp on title and deaccession stamp on title verso, presentation stamp and inscription from the U.S. Goverment "at the request of the author" on title). Howes J170.