Part 1. 1910.

[6] Schoetensack, 1908. Der Unterkiefer des Homo heidelbergensis.

[7] Keith, 1911. Lancet, March 18, 1911, abstract of the Hunterian Lectures.

[8] Dubois, 1896. Anatomischer Anzeiger. Band XII. S. 15.

CHAPTERS II AND III

[9] Avebury (Lubbock), 1868. International Congress for Prehistoric Archaeology.

[10] Turner, 1864 (quoting Busk). Quarterly Journal of Science, Oct. 1864, p. 760.

[11] Nehring, 1895. Zeitschrift für Ethnologie, 1895, S. 338.

[12] Kramberger, 1899. Mittheilungen der anthropologischen Gesellschaft zu Wien. "Der Mensch von Krapina." Wiesbaden, 1906.

[13] Marett, Archaeologia, 1911; also Keith, 1911. Nature, May 25, 1911. Keith and Knowles, Journal of Anatomy, 1911.

[14] Boule, 1908. L'Anthropologie. Tome XIX. p. 519.

[15] Klaatsch and Hauser, 1908. Archiv für Anthropologie. Band 35, 1909, p. 287.

[16] Peyrony (and Capitan), 1909-1910. Bulletins de la Société d'Anthropologie de Paris, Jan. 20, 1910.

[17] Sollas, 1907. Philosophical Transactions of the Royal Society. Vol. 199 B.

[18] Sera, 1909. Atti della Società romana di Antropologia, xv. fasc. II.

[19] Verner, 1910. Ann. Rep. Hunterian Museum. R.C.S. London. Saturday Review, Sep. 16, 1911, and five following numbers.

[20] Verneau, 1906. L'Anthropologie. Tome XVII.

[21] Lehmann-Nitsche, 1907. Rivista del Museo de la Plata, XIV. 1907.

[22] Lehmann-Nitsche, 1909. Naturwissenschaftliche Wochenschrift, Jena, VIII. 42.

[23] Klaatsch, 1909. Prähistorische Zeitschrift, I.

[24] Newton, 1895. Quarterly Journal of the Geological Society, August, 1895.

[25] Schwalbe, 1906. "Der Schädel von Brüx." Zeitsch. für Morphologie und Anthropologie.

[26] Hinton, 1910. Proceedings of the Geologists' Association. Vol. XXI.