There is, however, another class of material objects, widely employed for producing physical auto-erotism, which in the nature of things never reaches the surgeon. I refer to the effects that, naturally or unnaturally, may be produced by many of the objects and implements of daily life that do not normally come in direct contact with the sexual organs. Children sometimes, even when scarcely more than infants, produce sexual excitement by friction against the corner of a chair or other piece of furniture, and women sometimes do the same.[203] Guttceit, in Russia, knew women who made a large knot in their chemises to rub against, and mentions a woman who would sit on her naked heel and rub it against her. Girls in France, I am informed, are fond of riding on the _chevaux-de-bois_, or hobby-horses, because of the sexual excitement thus aroused; and that the sexual emotions play a part in the fascination exerted by this form of amusement everywhere is indicated by the ecstatic faces of its devotees.[204] At the temples in some parts of Central India, I am told, swings are hung up in pairs, men and women swinging in these until sexually excited; during the months when the men in these districts have to be away from home the girls put up swings to console themselves for the loss of their husbands. It is interesting to observe the very wide prevalence of swinging, often of a religious or magic character, and the evident sexual significance underlying it, although this is not always clearly brought out. Groos, discussing the frequency of swinging (_Die Spiele der Menschen_, p. 114) refers, for instance, to the custom of the Gilbert Islanders for a young man to swing a girl from a coco palm, and then to cling on and swing with her. In ancient Greece, women and grown-up girls were fond of see-saws and swings. The Athenians had, indeed, a swinging festival (Athenæus, Bk. XIV, Ch. X). Songs of a voluptuous character, we gather from Athenæus, were sung by the women at this festival. J.G. Frazer (_The Golden Bough_, vol. ii, note A, "Swinging as a Magical Rite") discusses the question, and brings forward instances in which men, or, especially, women swing. "The notion seems to be," he states, "that the ceremony promotes fertility, whether in the vegetable or in the animal kingdom; though why it should be supposed to do so, I confess myself unable to explain" (loc. cit., p. 450). The explanation seems, however, not far to seek, in view of the facts quoted above, and Frazer himself refers to the voluptuous character of the songs sometimes sung.