CHAPTER I CHARACTERISTICS In the years 1804, 1805, and 1806, two men commanded an expedition which explored the wilderness that stretched from the mouth of the Missouri River to where the Columbia enters the Pacific, and dedicated to civilization a new empire. Their names were Meriwether Lewis and William Clark. As a rule, one who tries to discover and to set down in order the simple signs that spell the story of a large man's life is confused by a chaos of data. No such trouble arises in this