A Review of the Systems of Ethics Founded on the Theory of Evolution - Cora May Williams

[141] I am indebted for these facts to Dr. Auguste Forel.

[142] "Ants, Wasps, and Bees," Chap. V.

[143] "Zur psychologischen Würdigung der darwin'schen Theorie."

[144] Pp. 141, 142, translation by Henry M. Trollope.

[145] Eng. ed. Internat. Scientific Ser., p. 276; quoted from "The Zoölogist."

[146] "Mental Evolution in Animals," p. 345; cited from an article in "Nature," 1883.

[147] "Animal Intelligence," p. 472.

[148] "Mind," Vol. VIII.

[149] Lubbock: "The Origin of Civilisation," pp. 9, 10.