[4] Sociology in its Psychological Aspects, p. 13.
[5] ibid., p. 94.
[6] Hobhouse: Morals in Evolution, p. 339.
[7] The Philosophical Review, 1912, vol. 21, p. 81.
[8] See Dennes: Method and Presuppositions of Group Psychology, especially Chap. IX.
[9] Page 115.
[10] Baldwin: Social and Ethical Interpretations, p. 248.
[11] Boaz: Mind of Primitive Man, p. 207.
[12] Matthew, 12:30.
[13] Allport: American Journal of Sociology, May 1924, p. 691.