168 : 13. See the notes to pp. 31 : 16 and 224 : 19.
168 : 19 seq. Ripley, chap. IX, p. 205, based on Arbo, Hultkranz and others. G. Retzius, in the article mentioned above, pp. 303–306, and also Crania Suecica; L. Wilser; K. Penka; O. Schrader, 2 and 3; Feist, 5; Mathæus Much; Hirt, 1; and Peake, 2, pp. 162–163, are other authorities. There are many more.
169 : 1 seq. G. Retzius, 3, p. 303. See also 1, for the racial homogeneity of Sweden.
169 : 9. Osborn, 1, pp. 457–458, and authorities given.
169 : 14. Gerard de Geer, A Geochronology of the Last 12,000 Years.
169 : 20 seq. See the note to p. 117 : 18.
170 : 3 seq. Cuno, Forschungen im Gebiete der alten Völkerkunde; Pösche, Der Arier.
170 : 10 seq. Peake, 2; Woodruff, 1, 2; and Myres, 1, p. 15. See also the notes to pp. 168 : 19 and Chap. IX of this book.
170 : 21. See the notes to pp. 213 seq.
170 : 29–171 : 12. See Osborn’s map, 1, p. 189.