THE problem discussed in the following pages has occupied my attention
for many years, and I have at various times dealt with it in brief
essays. Some of these, in revised form and enlarged, are embodied in the
present volume:—
Human Faculty as determined by Race (_Proceedings of the
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 (_American Journal of
Psychology_, vol. xxi [1910], pp. 371-384).
I have also utilized a small part of the Introduction to my “Handbook of
American Indian Languages” (Bulletin 40 of the Bureau of American
Ethnology), and some of the results of my report on “Changes in Bodily
Form of Descendants of Immigrants” (vol. 39, Reports of the Immigration
Commission, Washington, Government Printing Office).