Audubon the Naturalist: A History of His Life and Time. Vol. 2 (of 2)
CHAPTER XXXIV
EXPEDITION TO THE UPPER MISSOURI
Ambitions at fifty-seven—Plans his last expedition in the _rôle_ of naturalist—Credentials from public men—Canvassing tour in Canada described—Baird's plans to accompany Audubon west frustrated—Western expedition begun—Ascent of the Missouri and Yellowstone—Discoveries of new birds—A wilderness that howls—Buffalo hunting—Passing of the great herds—Return from Fort Union—Incident on the canal boat—Completion of the octavo edition of the _Birds_ 239