A journal of the voyages and travels of a corps of discovery, under the command of Capt. Lewis and Capt. Clarke of the army of the United States : from the mouth of the river Missouri through the interior parts of North America to the Pacific ocean, during the years 1804, 1805 & 1806. Containing an authentic relation of the most interesting transactions during the expedition,--a description of the country,--and an account of its inhabitants, soil, climate, curiosities and vegetable and animal productions