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Britannica_, I, 114-19.

(2) Brinton, D. G. _The Basis of Social Relations._ A study in ethnic
psychology. Part II, chap. iv, "The Influence of Geographic
Environment," pp. 180-99. New York, 1902.

(3) Ripley, W. Z. _The Races of Europe._ A sociological study. Chap.
xxi, "Acclimatization: the Geographical Future of the European Races,"
pp. 560-89. New York, 1899. [Bibliography.]

(4) Virchow, Rudolph. "Acclimatization," _Popular Science Monthly_,
XXVIII (1886), 507-17.

(5) Boas, Franz. "Changes in Bodily Form of Descendants of Immigrants,"
_Report of Immigration Commission, 1907._ Washington, 1911.

(6) Keller, Albert G. _Colonization._ A study of the founding of new
societies. Boston, 1908. [Bibliography.]

(7) ----. "The Value of the Study of Colonies for Sociology," _American
Journal of Sociology_, XII (1906), 417-20.

(8) Roscher, W., and Jannasch, R. _Kolonien, Kolonialpolitik und
Auswanderung._ 3d ed. Leipzig, 1885.

(9) Leroy-Beaulieu, P. _De la colonisation chez les peuples modernes._
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(10) Huntington, Ellsworth. _Civilization and Climate._ Chap. iii, "The
White Man in the Tropics," pp. 35-48. New Haven, 1915.

(11) Ward, Robert De C. _Climate._ Considered especially in relation to
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(12) Bryce, James. "British Experience in the Government of Colonies,"
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C. _Superordination and Subordination_

(1) Simmel, Georg. "Superiority and Subordination as Subject Matter of
Sociology," translated from the German by Albion W. Small, _American
Journal of Sociology_, II (1896-97), 167-89, 392-415.

(2) Thorndike, E. L. _The Original Nature of Man._ "Mastering and
Submissive Behavior," pp. 92-97. New York, 1913.

(3) McDougall, William. _An Introduction to Social Psychology._ "The
Instincts of Self-Abasement (or Subjection) and of Self-Assertion (or
Self-Display) and the Emotions of Subjection and Elation," pp. 62-66.
12th ed. Boston, 1917.

(4) Muensterberg, Hugo. _Psychology, General and Applied._ Chap. xviii,
"Submission," pp. 254-64. New York, 1914.

(5) Galton, Francis. _Inquiries into Human Faculty and Its Development._
"Gregarious and Slavish Instincts," pp. 68-82. New York, 1883.

(6) Ellis, Havelock. _Studies in the Psychology of Sex._ Vol. III,
"Analysis of the Sexual Impulse." "Sexual Subjection," pp. 60-71;