The Evolution of Marriage and of the Family

by Ch. Letourneau

[45] Ibid. p. 455.

[46] Espinas, Soc. Animales, p. 422.

[47] Audubon, Scènes de la Nature, t. I^er. p. 29.

[48] Espinas, loc. cit. pp. 421-423.

[49] Audubon, loc. cit. t. I^er. p. 209.

[50] Ibid. t. ii. p. 13.

[51] Ibid.

[52] Ibid. t. I^er. p. 167.

[53] Ibid. t. ii. p. 199.

[54] Ibid. t. ii. p. 476.