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

245/426

(debug: view other mode)

The image contains the following text:

Pelvic Inclination in supine horizontal attitude, with thighs in extreme flexion. Section of the female pelvis, adapted from Bumm's " Operative Gynakologie " (taken from " Fertility and Sterility in Marriage "). Compare with Plate VI. and observe the difference of the pelvic inclination in these two positions. Note also the difference in the direction of the vagina and the respective angles of vagina and portio ; as well as the position of the portio as regards other pelvic organs. The importance of these differences is explained in the text of Chapter VIII., p. 68.