ABSTRACT
No disturbance of male potency is so frequently observed by the nerve-specialist as that of ejaculatio precox. This affection is well known not only to the medical profession but to the laity. In it there is a premature emission of semen immediately after or even before the intromission of the penis during sexual intercourse, and the erection comes to an end. This description is of course a very rough one. But although it has been the subject of special investigation its real nature has not been explained, still less its origin.
