[12.] Lydekker, L. K. Geographical History of Mammals. Cambridge, 1896, 201, 265, 288, 334.
[13.] Pirsson, L. V., and Schuchert, C. Text-Book of Geology. New York, 1915, Part II, 925, 948, 964, 976.
[14.] Smith, G. E. Presidential Address, Brit. Assoc. Adv. Sci. Dundee, 1912, 575.
[15.] Heinemann, T. W. Physical Basis of Civilization. Chicago, 1908.
[16.] Fiske, J. Destiny of Man. Boston, 1884.
[17.] Drummond, H. Ascent of Man. New York, 1894.
[18.] Kropotkin, P. A. Mutual Aid a Factor in Evolution. New York, 1903.
[19.] Jones, F. W. Arboreal Man. New York and London, 1916.
PITHECANTHROPUS
See A, I, 273; B, I, 181; D, I, 370; 40, 73.