CHAPTER IV.
_Brief detail of transactions at Cass Lake.—A select exploring party is organised here, for ascending to the actual source of the Mississippi.—Council with the Indians.—Speech of Oza Windib.—The Indians furnish canoes and guides.—Arrangement of the party.—Notice of a Warrior’s widow.—Scalp dance.—Facts respecting foreign interference in the trade of the Upper Mississippi.—The question of the use of ardent spirits in the trade.—Act of Congress of 1832, prohibiting it.—Departure of the exploring party.—Ascent to Pamitchi Gumaug, or Lac Travers.—Its elevation and size.—A Shingaba Wossin.—Image worship.—Bay.—Ultimate forks of the Mississippi.—Ascend the east fork.—Lake Marquette.—Lake La Salle.—Kubbakunna Lake.—Notices of the Natural History._