Von Luschan found still more striking evidence of this in his study of modern Greeks, which he describes in his _Early Inhabitants of Western Asia_. He has found that the children of parents of different head form inherit in quite strict fashion the shape of skull of one or the other parent, and that the population, instead of being mesaticephalic, is to-day as distinctly divided into two groups, dolichol- and brachycephalic, as in prehistoric times, in spite of the constant intermixture that has occurred. 14 : 18. See notes to p. 13. This is a statement made by Dr. Davenport, in correspondence. 15 : 17. On the Neanderthal and Cro-Magnon types consult Professor Arthur Keith, 1, pp. 101–120, and 2; also Henry Fairfield Osborn, 1, the table on p. 23, pp. 214 _seq._, 289 _seq._, 291–305 and elsewhere, and the authorities given. On the resurgence of types, see Beddoe, 4; Fleure and James; Giuffrida-Ruggeri; Parsons; and numerous other recent anthropologists. 15 : 25. See the notes to p. xix of the Introduction to this book, and Keith, 2. 15 : 29 _seq._ Professor G. Elliot Smith, _The Ancient Egyptians_, chap. IV, and pp. 41 _seq._ On p. 43 we read: “If we want to add to such sources of information and complete the picture of the early Egyptian ... he can be found reincarnated in his modern descendants with surprisingly little change, either in physical characteristics or mode of life, to show for the passage of six thousand years.” On p. 44: “Although alien elements from north and south have been coming into Upper Egypt for fifty centuries, it has been a process of percolation, and not an overwhelming rush; the population has been able to assimilate the alien minority and retain its own distinctive features and customs with only slight change; and however large a proportion of the population has taken on hybrid traits resulting from Negro, Arab, or Armenoid admixture, there still remain in the Thebaid large numbers of its people who present features and bodily conformation precisely similar to those of their remote ancestors, the Proto-Egyptians.” See also G. Sergi, 1, p. 65, and 4, p. 200. 17 : 5. See Franz Boas, _Changes in the Bodily Form of the Descendants of Immigrants_, pp. 9, 27, etc. 17 : 28–18 : 7. See the notes to p. 13. 18 : 13. See notes to p. 14. Also Ripley, pp. 465–466 for a statement as to brunetness. 18 : 24–19 : 2. E. G. Conklin, 1, pp. 454–455, and 2, especially vol. X, no. 1, pp. 55–58. 19 : 3. Anders Retzius was the first to make use of the head form in anthropological study, and to give the impetus to the index measurement system in _The Form of the Skulls of the Northern Peoples of Europe_. See also A. C. Haddon, 1, chap. I, in which he discusses these traits in full, and Ripley, chap. III, especially pp. 55 _seq._ Modern physical anthropologists still agree that the skull form is a most stable and reliable character. 19 : 25. Ripley, p. 39.