title: 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. By Captains Lewis and Clarke. Published from the official report, and illustrated by ... maps [Another edition of 'History of the Expedition under the command of Captains Lewis and Clarke, etc.' By Nicholas Biddle. Edited by T. Reus.]