Note 271 — TRAVELS IN THE INTERIOR OF NORTH AMERICA, IN THE YEARS 1832, 1833, AND 1834 (continued 5)

Schoolcraft (Expedition of Gov. Cass, p. 323) says, that the Dacotas, on the Mississippi, tanned their skins with oak bark, which I did not observe on the Missouri: they probably learned it from the Whites. The Aucas, in South America, seem to use such an instrument.—D'Orbigny Voyage, t. ii. p. 234.—Maximilian.