_Case._――Jno. B. wishes to know what makes him so “fidgety and good-for-nothing.” He says he has visited his intended, to whom he is “engaged to be married,” twice a week for nearly two years. “We are very intimate and kiss and embrace: I think too much of her to do anything wrong. My penis is up all the time I am with her; and when I go home my testicles are sore, and I lie awake all night.” This is typical, as a cause from continuance; and if the female is as amorous as the male, she will also become nervous and irritable. The restlessness, following the protracted turgescence of the genitals, is a fruitful cause of neurasthenia. Yet all will gradually pass away after marriage, which should be advised speedily. With nymphomania, there commonly exists a neurasthenia that long remains after all signs of any organic disease have disappeared. Mrs. M., aged 26; the mother of one healthy child; rather adipose; short and firm of organization; flushed face; weight, 140 pounds; apparently a very vigorous woman. She cannot endure any muscular effort of any kind, as she becomes exhausted; dizziness, formication, sickness at the stomach, one day; coldness of feet and hands, with paresis of first one side then the other, tingling of the tongue; no hysterical manifestations, cramping or fainting, at any time. Uterus is normal; no tenderness along the spine. Sometimes a local hyperæmia of the brain exists, but only lasts a short time. Her heart-sounds are normal, and pulse regular; bowels perfectly regular at all times, and menses regular. Within a period of two years’ time, she produced four abortions upon herself. Each time at third month, and each time did so well that no physician was called. She informed me that she became more and more nervous after each abortion. I have not benefitted this case by any manner of treatment, as yet, and still there is no manifestation of any organic disease. If ever a physician is perplexed, it is when he is called on to advise a patient whom he calls “nervous.” This is more commonly the case with the general practitioner, as he is looking for something to be the matter, and finds nothing but phenomena which he illy comprehends. These cases are of vast interest to the neurologist, as he is in an expansive field for study, and he feels a pleasure with his work; not as to the rapidity with which he expects to see these manifestations pass away, but in the assurance that these most troublesome phenomena are harmless.