[67]

Marro, La Pubertà, 1898, p. 223; Garnier, "La Criminalité Juvenile," Comptes-rendus Congrès Internationale d'Anthropologie Criminelle, Amsterdam, 1901, p. 296; Archivio di Psichiatria, 1899, fasc. v-vi, p. 572.

[68]

Bk. ii, ch. ii.

[69]

Herbert Spencer, Principles of Sociology, 1876, vol. i, p. 651.

[70]