[55]William Duncan Strong, “An Introduction to Nebraska Archaeology,” _Smithsonian Miscellaneous Collections_, vol. 93, no. 10 (1935). E. W. C. and W. H. Campbell, _The Pinto Basin Site_ (Southwest Museum Papers, no. 9, 1935), 33-34. [56]Carl Sauer, personal communication, 1946. [57]M. R. Harrington, “The Age of Borax Lake” and “Farewell to Borax Lake,” _Masterkey_, 8:208-209 (1939) and 19:181-184 (1945), and _An Ancient Site at Borax Lake, California_ (Southwest Museum Papers, no. 16, 1948). [58]M. R. Harrington, personal communication, 1948. [59]E. H. Sellards, “Stone Images from Henderson County, Texas,” _American Antiquity_, 7:20-38 (1941). [60]Mariano Barcena, “Descripción de un hueso labrado, de llama fosil,” _Anales del Museo Nacional de México_, 2:439-444 (1882). [61]“Discovery That Man Existed in the Western Hemisphere Some 30,000 Years Ago Made by Noted Mexican Anthropologist,” news release from _Visión_, July 22, 1960. [62]Etienne B. Renaud, _The Black’s Fork Culture of Southwest Wyoming_ and _Further Research Work in the Black’s Fork Basin, Southwest Wyoming_ (University of Denver, Dept. of Anthropology, Archaeological Survey Series, Reports 10 and 12, 1938, 1940). [63]Thomas Wilson, “The Paleolithic Period in the District of Columbia,” _Proceedings, U.S. National Museum_, for 1889, 12:371-376, and “A Study of Prehistoric Anthropology” and “Results of an Inquiry As to the Existence of Man in North America During the Paleolithic Period of the Stone Age,” _Report, U.S. National Museum, for 1887-1888_, 629-636, 677-702. Nels C. Nelson, “The Antiquity of Man in America in the Light of Archaeology,” in _The American Aborigines_ (1933), 93-94. [64]Frank H. H. Roberts, Jr., “Developments in the Problem of the North American Paleo-Indian,” _Smithsonian Miscellaneous Collections_, 100:96-97 (1940). [65]Kirk Bryan, “Prehistoric Quarries and Implements of Pre-Amerindian Aspect in New Mexico,” _Science_, new ser., 87:345 (1938). [66]E. B. Sayles, _An Archaeological Survey of Texas_ (Medallion Papers, Gila Pueblo, no. 17. 1935), table 4, plate 19. J. E. Pearce, “Tales That Dead Men Tell,” _University of Texas Bulletin_, no. 3537 (1935), 25, plate 3. [67]Junius Bird, “Antiquity and Migrations of the Early Inhabitants of Patagonia,” _Geographical Review_, 28:273 (1938), fig. 27. Walter Dupouy, “Sobre una punta litica de tipo singular en Venezuela,” _Acta Venezolana_, 1:80-87 (1945). [68]Helmut de Terra, “New Evidence for the Antiquity of Early Man in Mexico,” _Revista mexicana de estudios antropológicos_, 8:69-88 (1946). [69]F. B. Richardson, “Nicaragua,” _Year Book, Carnegie Institution, 1941_ (no. 40), 300-302. F. B. Richardson and Karl Ruppert, “Nicaragua,” _Year Book, Carnegie Institution, 1942_ (no. 41), 269-270.