Hirt considers that even when marital intercourse is carefully regulated with respect to frequency, coitus interruptus may lead to neurasthenic manifestations. Eulenberg also declares that coitus interruptus is already a frequent cause of sexual neurasthenia in women and that its evil influence in this respect is becoming more and more frequently manifest. P. 405. Valenta declared that coitus interruptus was one of the chief causes of chronic netritis. According to Kleinwachter, coitus interruptus is harmful to the woman to an extent by no means trivial, whereas the man in whom ejaculation occurs, suffers comparatively little. P. 407. _DISORDERS OF THE SEXUAL FUNCTION. By Max Huhner, M.D., Chief of Clinic, Genitourinary Department, Mt. Sinai Hospital Dispensary, New York City._ If the act of coitus is stopped before it is completed, the seminal vesicles have not been able to completely empty themselves, or to empty themselves as completely as during a normal coitus, and are thus left more or less filled. The mucous membrane in the prostalic urethra has not been able to completely deplethorize itself, and thus remains more or less congested after the act. As a result of all this, impulses are sent much sooner from the distended vesicles and the prostatic urethra to the erection center and the cerebrum, so that the desire for coitus is felt sooner than after normal coitus. The seminal vesicles, being never completely emptied during withdrawal coitus, are constantly sending impulses to the erection center, while the mucous membrane of the prostatic urethra, being in a condition of chronic congestion in consequence of repeated acts of withdrawal, is likewise sending continuous impulses to the same center whether coitus is indulged or not. The result of these continued impulses sent from both sources, as well as the repeated demands made upon the center itself from the oft repeated acts of coitus, is, that the erection center does not completely recover itself and finally remains in a state of hyperexcitability.... It must be remembered, however, that all this does not occur as a result of a single act of withdrawal; and it is often only after years of this practice that the harmful effects above described become evident. Page 227. CONTINENCE _THE SEXUAL LIFE OF WOMAN IN ITS PHYSIOLOGICAL, BIOLOGICAL AND HYGIENIC ASPECTS. E. Heinrich Kisch, M.D._