she left home and came to New York.  Up to that time no signs of menstruation had appeared, and she had never heard that such a function existed.  Soon after her arrival in New York, she obtained a situation as a waiting-maid, and it was noticed, after a time, that she was not unwell at each month.  Friends filled her ears with wild stories about the dreadful effects likely to follow the absence of menstruation.  This worried her greatly, and as a consequence she became pale and anaemic, with loss of flesh, appetite, and sleep, and a long train of imaginary nervous symptoms.  She presented herself for treatment, and insisted upon a uterine examination.  This revealed no pathological condition of her uterus.  She was assured that she would not die, or become insane, nor a chronic invalid.  In consequence she soon forgot that she differed in any way from other girls.  A course of chalybeate tonics, generous diet, and proper care of her general health, soon restored her to her normal condition.  After close observation for several years, she submitted to a thorough examination, although entirely free from any abnormal symptoms.  The examination revealed the following physical condition:  Weight, 105 pounds (her weight before leaving Ireland was 130); girth of chest, twenty-nine and a half inches; girth of abdomen, twenty-five inches; girth of pelvis, thirty-four and a half inches; girth of thigh, upper third, twenty inches; heart healthy, sounds and rhythm perfectly normal; pulse, 76; lungs healthy; respiratory murmur clear and distinct over every part; respiration, easy and twenty per minute; the mammae are well developed, firm, and round; nipples, small, no areola; her skin is soft, smooth, and healthy; figure erect, plump, and symmetrical; her bowels are regular; kidneys, healthy.  She has a good appetite, sleeps well, and in no particular shows any sign of ill health.  The uterine examination reveals a short vagina, and a small, round cervix uteri, rather less in size than the average, and projecting very slightly into the vaginal canal.  Depth of uterus from os to fundus, two and a quarter inches, is very nearly normal.  No external sign of abnormal ovaries.  She is a well-developed, healthy young woman, performing all her physiological functions naturally and regularly, except the single function of menstruation.  No vicarious menstruation takes the place of the natural function, though she has been watched very closely during the past two years, nor the least periodical excitement.  It is added that, though the clitoris is normal, the mons veneris is almost destitute of hair, and the labia rather undeveloped, while, “as far as is known,” sexual instincts and desire are entirely absent.  These latter facts, I may add, would seem to suggest that, in spite of the health of the subject, there is yet some concealed lack of development of the sexual system, of congenital character.  In a case recorded by Plant (Centralblatt fuer Gynaekologie, No. 9, 1896, summarized in the