[PAGE 91]. W. H. Holmes, Handbook of Aboriginal American Antiquities (1919).
[PAGE 92]. Ibid.
[PAGE 93]. Ibid.
[PAGE 98]. Henry Fairfield Osborn, Men of the Old Stone Age (1915).
[PAGE 100]. John Evans, The Ancient Stone Implements, Weapons, and Ornaments of Great Britain (1872).
[PAGE 101]. Miles C. Burkitt, The Old Stone Age: A Study of Palaeolithic Times (1933). George Grant MacCurdy, Human Origins (1924).
[PAGE 102]. Harold Peake and Herbert John Fleure, Hunters and Artists (1927).
[PAGE 103]. George Grant MacCurdy, Human Origins, Vol. I (1924). L. S. B. Leakey, Adam’s Ancestors (3rd ed., 1935).
[PAGE 105]. Miles C. Burkitt, The Old Stone Age: A Study of Palaeolithic Times (1933). George Grant MacCurdy, Human Origins, Vol. I (1924). Edith Plant, Man’s Unwritten Past (1942).
[PAGE 106]. George Grant MacCurdy, Human Origins, Vol. I (1924).