(LEWIS AND CLARK) Travels to the Source of the Missouri River, and Across the American Continent to the Pacific Ocean. Performed by Order of the Government of the United States, in the Years 1804, 1805, and 1806. London: Longman, Hurst, Rees, Orme, and Brown, 1817.Vols. II and III (of 3) only. 8vo, rebound in modern calf, gilt-lettered spines. New edition. With three (of five) plates, lacking large folding map in vol. 1. Scattered brownspotting; light offsetting from plates.