[170] Biometrika, IV, pp. 233-286, London, 1905.
[171] See, for example, Journal of Heredity, VIII, pp. 394-396, September, 1917. A large body of evidence from European sources, bearing on the relation between various characters of the offspring, and the age of the parents, was brought together by Corrado Gini in Vol. II, Problems in Eugenics (London, 1913).
[172] Davenport, Charles B., "The Personality, Heredity and Work of Charles Otis Whitman," American Naturalist, LI, pp. 5-30, Jan., 1917.
[173] Gillette, John M., Constructive Rural Sociology, p. 89, New York, 1916.
[174] Cook, O. F., "Eugenics and Agriculture," Journal of Heredity, VII, pp. 249-254, June, 1916.
[175] Gillette, John M., "A Study in Social Dynamics: A Statistical Determination of the Rate of Natural Increase and of the Factors Accounting for the Increase of Population in the United States," Quarterly Publications of the American Statistical Association, n. s. 116, Vol. XV, pp. 345-380, December, 1916.
[176] The popular demand for "equality of opportunity" is, if taken literally, absurd, in the light of the provable inequality of abilities. What is wanted is more correctly defined as an equal consideration of all with an appropriate opportunity for each based on his demonstrated capacities.
[177] Essays in Social Justice. By Thomas Nixon Carver, Harvard University Press, 1915, pp. 168-169.
[178] Answering the question "How Much is a Man Worth?" Professor Carver states the following axioms:
"The value of a man equals his production minus his consumption."