The problem discussed in the following pages hasoccupied my attention for many years, and I have atvarious times dealt with it in brief essays. Some ofthese, in revised form and enlarged, are embodied in thepresent volume:—
Human Faculty as determined by Race (Proceedings ofthe American Association for the Advancement of Science,vol. xliii [1894], pp. 301-327).
The Limitations of the Comparative Method of Anthropology(Science, N. S., vol. iv [1896], pp. 901-908).
The Mind of Primitive Man (Journal of American Folk-Lore,vol. xiv [1901], pp. 1-11).
Some Traits of Primitive Culture (Ibid., vol. xvii [1904],pp. 243-254).
Race Problems in America (Science, N. S., vol. xxix[1909], pp. 839-849).
Psychological Problems in Anthropology (AmericanJournal of Psychology, vol. xxi [1910], pp. 371-384).
I have also utilized a small part of the Introductionto my “Handbook of American Indian Languages”vi(Bulletin 40 of the Bureau of American Ethnology),and some of the results of my report on “Changes inBodily Form of Descendants of Immigrants” (vol. 39