[137] Nott and Gliddon’s Types of Mankind, p. 336, and Lyell’s Antiquity of Man, p. 43.
[138] Tableau of New Orleans, 1852, cited by Foster, Pre-Historic Races, p. 73.
[139] Antiquity of Man, p. 43.
[140] Surface Geology, p. 92, Smithsonian Contributions to Knowledge, vol. ix.
[141] Physics and Hydraulics of the Mississippi, pp. 150 et seq., and 435.
[142] Pre-Historic Races, p. 76.
[143] Philadelphia Acad. of Natural Sciences. Proceedings, Part I, 1872. Also Foster, pp. 69–71.
[144] This letter bears date December 24, 1876, written from Waynesville, Ohio, and signed by Robert F. Furnas, M. D.
[145] Prof. Orton in Geology of Highland County in “Progress of the Ohio Geological Survey in 1870,” published 1871, and in vol. i. of State Geological Report, p. 442.
[146] Prof. Winchell remarks: “The very general interest that is being excited in this country in the problems that invest the history of the drift is my only excuse for calling your attention to the prevalence of vegetable remains in the Drift of the North-west, and to the wide divergence of high authorities on the relative position of those remains in respect to the boulder clay.”—See Proceedings, p. 56, Am. Ass. for Adv. Sci., 1875, 24th Meeting.