The Play of Man

by Karl Groos

[638] W. James, The Principles of Psychology, vol. ii, p. 428.

[639] Unter den Naturvölkern, etc., p. 267.

[640] J. von d. Steinen, Unter den Naturvölkern, p. 267.

[641] Op. cit., p. 219.

[642] Das Spiel und die Spiele, p. 328.

[643] Op. cit., p. 268.

[644] In an inquiry as to children’s preferences in the matter of playmates, Will S. Monroe found 335 boys who wanted male against 20 who asked for female comrades; 328 girls preferred their own sex and only 28 the other. (Development of the Social Consciousness of Children. The Northwestern Monthly, September, 1898.)

[645] O. Stoll, Suggestion und Hypnotismus in der Völkerpsychologie, Leipsic, 1894, p. 24.

[646] A more thorough account of this theory may be found in The Play of Animals. The recreation theory, on the contrary, is peculiarly applicable in this connection.

[647] O. Külpe, Grundriss der Psychologie, Leipsic, 1893, p. 216.