[1]Clark Wissler, “The Origin of the American Indian,” Natural History, 53:313 (1944).
[2]Frank H. H. Roberts, Jr., “The New-World Paleo-Indian,” Smithsonian Institution Annual Report for 1944, 406.
[3]Earnest A. Hooton, Up from the Ape, 1931, 568.
[4]Junius Bird, personal communications, 1945-1947.
[5]A. P. Okladnikov, “Archaeological Data on the Ancient History of the Lake Baikal Region,” Review of Ancient History, vol. 1, pt. 2, fig. 5 (Moscow, 1938). Henry B. Collins, Jr., “Eskimo Archaeology and Its Bearing on the Problem of Man’s Antiquity in America,” Proceedings, American Philosophical Society, 86:229-230 (1943), fig. 5.
[6]George Gaylord Simpson, “Mammals and Land Bridges,” Journal, Washington Academy of Sciences, 40:153 (1940).
[7]Bruce Howe and Hallam L. Movius, Jr., A Stone Age Cave Site in Tangier (Papers, Peabody Museum, vol 28, no. 1, 1947). Gertrude Caton-Thompson, “The Levalloisian Industries in Egypt,” Proceedings, Prehistoric Society, 1946, new ser., 12:57-120.
[8]Carleton S. Coon, The Races of Europe (1939), 46.
[9]W. J. Sollas, Ancient Hunters and Their Modern Representatives (2nd ed., 1915), 485-487, 510-513, 520.
[10]Aleš Hrdlička, “The Coming of Man from Asia in the Light of Recent Discoveries,” Proceedings, American Philosophical Society, 71:401 (1932).