Note 582 — Chapter XIII

See for details, Abbott, Primitive Industry, Cambridge (Mass.), 1881, and Evidence ... Antiquity of Man in East N. America, 1888; F. Wright, The Ice Age in North America, New York, 1889, chaps. xxi. and xxii., and Meet. Amer. Assoc. Adv. Sc. of Buffalo, 1896; Geikie, loc. cit. (chap. li., written by T. Chamberlin); Metz, Proceed. Boston Soc. Nat. Hist., vol. xxiii., p. 242; W. Upham, ibid., p. 436; Hille-Cresson, Proceed. Bost. Soc. Nat. Hist., 1889; Holmes, loc. cit. (Fifteenth Rep. Bur. Ethn.); Th. Wilson, A Study of Prehist. Anthrop., Washington, 1890 (Extract from Rep. U.S. Nat. Mus., 1887–88, p. 597). For the discussion, see Science for 1892 and 1898. Marcellin Boule has summarised most of the works quoted, and shows the present state of the question in Revue d’Anthropologie, 1888, p. 647, and in L’Anthropologie, 1890 and 1892; see also Nadaillac, L’Anthropologie, 1897 and 1898. I will merely note that the tendency of surface objects to sink towards deep beds, brought forward by the opponents of Abbott, Wright, etc., altogether fails to explain why other implements (in flint, jade, etc.) or pieces of pottery have not similarly been carried down, and that only argilite tools are found flat in deep beds.