53 : 6. Galton, Hereditary Genius, pp. 345–346.
55 : 3 seq. Sir G. Archdall Reid, 2, p. 182; The Handbook of the American Indian, under Health and Disease; Payne, A History of the New World Called America; and elsewhere in early accounts. Also, Paul Popenoe, One Phase of Man’s Modern Evolution, p. 618.
CHAPTER V. RACE, LANGUAGE AND NATIONALITY
60 : 18. See the note to p. 18.
62 : 2. Ripley, passim; and the notes to pp. 142 : 23, 172 : 22, 187 : 23, 188 : 15, 195 : 18, 213 and 247 of this book.
63 : 13. This absence of round skulls was universally accepted, but recent studies show an appreciable Alpine element which is increasing.
64 : 2 seq. See pp. 201 and 203.
64 : 18. Ripley discusses the Slavs in full in chap. XIII, and gives the original sources for all of his information.
65 : 1. Ripley, pp. 422–428.
65 : 3. Von Luschan, 1; Ripley, pp. 406–411.