[11]Nels C. Nelson, “The Antiquity of Man in America in the Light of Archaeology,” in The American Aborigines, ed. Diamond Jenness (1933), 116.
[12]M. R. Harrington, Cuba Before Columbus, pt. 1 (Indian Notes and Monographs, Museum of the American Indian, 1921), 1:205-206, and Gypsum Cave, Nevada (Southwest Museum Papers, no. 8, 1933), 189-190.
[13]Thomas Jefferson, Notes on the State of Virginia, 1801, 148.
[14]Hallam L. Movius, Jr., Early Man and Pleistocene Stratigraphy in Southern and Eastern Asia (Papers, Peabody Museum, vol. 19, no. 3, 1944), 25-27.
[15]Herbert J. Spinden, World Chronology and the Peopling of America (mimeographed Presidential Address read before the American Anthropological Society, Washington, Dec. 27, 1936), 5.
[16]Herbert J. Spinden, personal communication, 1946.
[17]Spinden, “First Peopling of America As a Chronological Problem,” in Early Man (1937), 106, and World Chronology, etc., 5.
[18]Spinden, World Chronology, etc., 4.
[19]A. S. Loukashkin, “Some Observations on the Remains of a Pleistocene Fauna and of the Paleolithic Age in Northern Manchuria,” in Early Man (1937), 327-340.
[20]Spinden, “Time Scale for the New World.” Proceedings, 8th American Scientific Congress, 2:39 (1942), and World Chronology, etc., 2, 19.