Note 1631 — Chapter VI · (continued 2)

This is also considered important evidence by Dawson, as well as Winchell’s estimate, in his 5th Report, Minnesota Geol. Survey (1876), of the 8,000 or 9,000 years necessary for the falls of St. Anthony to have worked back from Fort Snelling. Edw. Fontaine’s How the World was peopled (N. Y., 1872) is another expression of this recent-origin belief.