Transcriber's Note:Minor typographical errors have been corrected without note.Punctuation and spelling were made consistent when a predominant form was found in this book; otherwise they were not changed.Ambiguous hyphens at the ends of lines were retained.Other notes:John Guttenburg changed to John Gutenberg (p. 71).Fort Kerney changed to Fort Kearney (pp. 20, 23, 25).Fort Bredger changed to Fort Bridger (p. 40).Saint Antoin changed to Saint Antoine (p. 85).