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, Volume 3