[24] Lindeman, p. 115.

[25] Singer, p. 10.

[26] Lindeman, p. 170.

[27] MacDougall: Group Mind, p. 78.

[28] MacDougall: Group Mind, p. 158.

[29] Dennes: Method and Presuppositions of Group Psychology, p. 120.

[30] Barker: Political Thought in England from Herbert Spencer to the Present Day.

[31] Singer: Mind as Behavior, chapter on The Man Without a Fellow.

[32] Baldwin: Social and Ethical Interpretations, p. 22.

[33] p. 30.