History of the expedition under the command of Captains Lewis & Clark : to the sources of the Missouri, thence across the Rocky mountains and down the river Columbia to the Pacific ocean, performed during the years 1804-5-6, by order of the government of the United States. A complete reprint of the Biddle ed. of 1814, to which all the members of the expedition contributed, with an account of the Louisiana purchase / Prof. John Bach McMaster, and notes upon the route ...