[8] SAML. Z. BATTEN, _The Redemption of the Unfit_, American Journal of Sociology, Vol. 14, p. 242 (1909). [9] FRANCIS GALTON, _Memoirs of My Life_, p. 311. N. Y., E. P. Dutton, 1909. [10] ARNOLD WHITE, _Efficiency and Empire_, p. 97. London, Methuen & Co., 1901. [11] W. C. & C. D. WHETHAM, _The Family and the Nations_, p. 85. N. Y., Longmans, 1909. [12] GUSTAVE MICHAUD, _Shall We Improve Our Race_, The Popular Science Monthly, Vol. 72, p. 77 (1908). [13] J. A. THOMPSON, _Heredity_, p. 331. N. Y., G. P. Putnam's Sons, 1908. [14] GUSTAVE MICHAUD, _Shall We Improve Our Race?_ Popular Science Monthly, Vol. 72, p. 77 (1908). [15] J. ARTHUR THOMPSON, _Heredity_, p. 308. N. Y., G. P. Putnam's Sons, 1908. [16] LESTER F. WARD, _Applied Sociology_, pp. 224-282. Boston, Ginn & Co., 1906. [17] For a more complete statement of the problem, see _Social Adjustment_, SCOTT NEARING, New York: Macmillan Company, 1911. [18] ROBERT LOUIS STEVENSON, _Virginibus Puerisque_. [19] WM. Z. RIPLEY, _Races of Europe_. N. Y., D. Appleton & Co., 1899. [20] C. E. WOODRUFF, _The Expansion of Races_. N. Y., Rebman, 1909. [21] D. S. JORDAN, _The Human Harvest_, p. 54. Boston, American Unitarian Association, 1907. [22] _Ibid_, p. 48. [23] ELLEN KEY, _Love and Marriage_, p. 53. N. Y., Putnam, 1911.