According to Wernich, a preparatory erection of the vaginal portion and of the neck of the uterus takes place in the beginning of the act. Then in the moment of the highest orgastic excitement, and almost simultaneously with the mutual ejaculation, the cervix becomes flabby and soft again. This sudden relaxation of the erected cervix is made possible by a particular arrangement of the nerves and causes the aspiration of the sperma. The erection of the lower part of the uterus during the sexual excitement has, therefore, almost the same importance for propagation as the erection of the penis for copulation. It serves the purpose of expelling Kristeller’s slimy plug from the cervix, in the moment of the highest orgasm. Mundé has seen the gushing, almost in jets, of clear viscid mucus from the external os during evident sexual excitement, produced by the rather prolonged digital and specular examination, in an erotic woman. The lips of the external os alternately opened and closed, with each gasping emitting clear mucus, until the excitement, which was intentionally prolonged by gently titillating the cervix with a sound through a Sims speculum, reached such a height as to cause the woman to sit up on the table and thus end the experiment. Beck (St. Louis Medical and Surgical Journal, Sep. 1872, p. 449) observed an orgasm while examining a woman with prolapsus uteri. The orifice of the uterus was just inside of the vulva and could be observed without a speculum. The woman was very prone, by reason of her passionate nature, to have an orgasm produced at the slightest contact with the fingers. The action of the uterus during the two observations was almost identical. The cervix of the uterus had been firm, hard, and generally in a normal condition, with the os closed so as not to admit the uterine probe without difficulty. But immediately when the orgasm began, the os opened to the extent of fully an inch, made five to six successive gasps, drawing the external os into the cervix, each time, powerfully and at the same time becoming quite soft to the touch. After about twelve seconds all was over. The os had closed again, and the cervix hardened. During the crisis an intense congestion of the parts could be noticed. The sensations experienced were described as being of the same quality as they ever were during coition. But they were not the same in quantity, the normal orgasm lasting longer. Talmey (New York Medical Journal, June, 23, 1917) observed an orgasm while examining a case where the cervix was found to be of normal consistency, and the external os was just passable for a uterine sound. Suddenly the cervix became red, congested, and soft, and the sound within the uterine cavity began to execute certain movements, resembling pendulum swings. The os opened so wide as to admit the index finger besides the sound, and the cervical lips made three gasps, each time drawing the lips within the canal. After a few seconds the paroxysm was over.