Erasmus Darwin, Zoönomia, vol. i, p. 496.
K. Groos, Spiele der Menschen, pp. 200-210.
Hirn, Origins of Art, p. 54. Reference may here perhaps be made to the fact that unpleasant memories persist in women more than in men (American Journal of Psychology, 1899, p. 244). This had already been pointed out by Coleridge. "It is a remark that I have made many times," we find it said in one of his fragments (Anima Poetæ, p. 89), "and many times, I guess, shall repeat, that women are infinitely fonder of clinging to and beating about, hanging upon and keeping up, and reluctantly letting fall any doleful or painful or unpleasant subject, than men of the same class and rank."