I have elsewhere, when studying the spontaneous solitary manifestation of the sexual instinct (_Auto-erotism_, in vol. i of these _Studies_), referred to the pleasurably emotional, and sometimes sexual, effects of swinging and similar kinds of movement. It is possible that there is a certain significance in the frequency with which the eighteenth-century French painters, who lived at a time when the refinements of sexual emotion were carefully sought out, have painted women in the act of swinging. Fragonard mentions that in 1763 a gentleman invited him into the country, with the request to paint his mistress, especially stipulating that she should be depicted in a swing. The same motive was common among the leading artists of that time. It may be said that this attitude was merely a pretext to secure a vision of ankles, but that result could easily have been attained without the aid of the swing. I may here quote, as bearing on this and allied questions, a somewhat lengthy communication from a lady to whom I am indebted for many subtle and suggestive remarks on the whole of this group of manifestations:-- "With regard to the connection between swinging and suspension, perhaps the physical basis of it is the loss of breath. Temporary loss of breath with me produces excitement. Swinging at a height or a fall from a height would cause loss of breath; in a state of suspension the imagination would suggest the idea of falling and the attendant loss of breath. People suffering from lung disease are often erotically inclined, and anesthetics affect the breathing. Men also seem to like the idea of suspension, but from the active side. One man used to put his wife on a high swinging shelf when she displeased him, and my husband told me once he would like to suspend me to a crane we were watching at work, though I have never mentioned my own feeling on this point to him. Suspension is often mentioned in descriptions of torture. Beatrice Cenci was hung up by her hair and the recently murdered Queen of Korea was similarly treated. In Tolstoi's _My Husband and I_ the girl says she would like her husband to hold her over a precipice. That passage gave me great pleasure.[127]