[26]Carl Sauer, “A Geographic Sketch of Early Man in America,” Geographical Review, 34:543-554 (1944).

[27]Sauer, personal communication, 1946.

[28]Eiseley, op. cit., 56-58.

[29]Eiseley, “Archaeological Observations on the Problem of Post-Glacial Extinction,” American Antiquity, 8:214 (1943).

[30]Alfred S. Romer, “Pleistocene Vertebrates and Their Bearing on the Problem of Human Antiquity in North America,” in The American Aborigines, ed. D. Jenness (1933), 76-77.

[31]Ibid., 77. Edwin H. Colbert, “The Association of Man with Extinct Mammals in the Western Hemisphere,” Proceedings, 8th American Scientific Congress (1942), 2:27.

[32]Frank Hibben, “Evidence of Early Man in Alaska,” American Antiquity, 8:255-257 (1943). Froelich G. Rainey, “Archaeological Investigations in Central Alaska,” American Antiquity, 5:299-308 (1940).

[33]Ernst Antevs, “Geologic-Climatic Dating in the West,” American Antiquity, 20:329 (1955).

[34]Paul S. Martin, “Pleistocene Ecology and Biography of North America,” American Association for the Advancement of Science, Publication 51:405 (1958).

[35]Jim Hester, “Late Pleistocene Extinction and Radiocarbon Dating,” American Antiquity, 26:58-71 (1960).