[146] Psychology of Religion, chap. iii. Hall's figures are given in the second volume of his work, pp. 288-92.
[147] Varieties, p. 199.
[148] An elaborate list of these ceremonies in both the savage and civilised worlds has been compiled by Mr. Hall, ii. chap. xiii.
[149] Catlin, North American Indians, i. p. 36; see also ii. p. 347.
[150] W. I. Thomas, Sex and Society, pp. 115-6.
[151] For a good summary, see Donaldson's Growth of the Brain, pp. 241-48.
[152] See on this subject the two fine works by Karl Groos, The Play of Animals, The Play of Man.
[153] W. Temple, Repton School Sermons.
[154] Sanity and Insanity, p. 281.
[155] Adolescence, ii. pp. 286-7.