Sex efficiency through exercises : special physical culture for women / by Th. H. van de Velde ; [photos, by E. Steinemann].

are drawn inwards, for this permits the lower surface of the symphysis pubis with the clitoris to touch the lower surface of the male organ. But there is need for caution both here and in the previously mentioned sedentary attitude face to face (or anterior sedentary) with strong pelvic inclination, for then the axis of the two organs, invading phallus and receiving vagina, differs, and it is particularly necessary to avoid vehement thrusting movements when this is the case, or severe injury may be inflicted on the woman. The risk of such injury is, however, diminished if she has learnt to move her pelvis swiftly and easily, and thus, by slightly shifting the position of her vulva or the direction of her vaginal passage, at the danger signal of any sudden pain, to avoid laceration or, even possibly, rupture. This consideration leads to a further caution. The woman can only incline her pelvis or shift her position freely and rapidly in such attitudes as place her body beside or above the man's. If the man is uppermost, whether lying or kneel- ing, or standing on his feet, the woman is very largely immobilised. But there is a great feminine freedom of movement in the astride attitude or equitation (in which the man is supine, and the woman astride across him), in the anterior sedentary (in which both are seated, she across his thighs facing him), in those kneeling postures, in which the man stands upright, while the woman bends forward, and, finally, in the posterior sedentary (in which she sits across his thighs but turns her back to him). There is a partial— but limited—mobility for the woman in the posterior lateral or sideways attitude (both lie on their sides, the woman in front with her back to the man) and even less freedom of movement for her in the anterior lateral (lying sideways, face to face) for the leg on which she is lying is pinned down. There is, however, a further modification of this anterior lateral attitude, as well as that described in " Ideal Marriage/' where the woman draws up the leg on which she lies so far as possible and clasps the uppermost thigh of the man with the other leg. The third possible lateral posture was described to the author in a letter by Henry Hamill,(2Q) who