Daumas, Chevaux de Sahara, p. 49.
See in vol. iv of these Studies ("Sexual Selection in Man"), Appendix A, on "The Origins of the Kiss."
De Stendhal (De l'Amour) mentions that when in London he was on terms of friendship with an English actress who was the mistress of a wealthy colonel, but privately had another lover. One day the colonel arrived when the other man was present. "This gentleman has called about the pony I want to sell," said the actress. "I have come for a very different purpose," said the little man, and thus aroused a love which was beginning to languish.