Isham speaks of a case of unconscious pregnancy in which extremely small twins were delivered at the eighth month. Fox cites an instance of a woman who had borne eight children, and yet unconscious of pregnancy. Merriman speaks of a woman forty years of age who had not borne a child for nine years, but who suddenly gave birth to a stout, healthy boy without being cognizant of pregnancy. Dayral tells of a woman who carried a child all through pregnancy, unconscious of her condition, and who was greatly surprised at its birth. Among the French observers speaking of pregnancy remaining unrecognized by the mother until the period of accouchement, Lozes and Rhades record peculiar cases; and Mouronval relates an instance in which a woman who had borne three children completely ignored the presence of pregnancy until the pains of labor were felt. Fleishman and Munzenthaler also record examples of unconscious pregnancy. Pseudocyesis.--On the other hand, instances of pregnancy with imaginary symptoms and preparations for birth are sometimes noticed, and many cases are on record. In fact, nearly every text-book on obstetrics gives some space to the subject of pseudocyesis. Suppression of the menses, enlargement of the abdomen, engorgement of the breasts, together with the symptoms produced by the imagination, such as nausea, spasmodic contraction of the abdomen, etc., are for the most part the origin of the cases of pseudocyesis. Of course, many of the cases are not examples of true pseudocyesis, with its interesting phenomena, but instances of malingering for mercenary or other purposes, and some are calculated to deceive the most expert obstetricians by their tricks. Weir Mitchell delineates an interesting case of pseudocyesis as follows: "A woman, young, or else, it may be, at or past the climacteric, eagerly desires a child or is horribly afraid of becoming pregnant. The menses become slight in amount, irregular, and at last cease or not. Meanwhile the abdomen and breasts enlarge, owing to a rapid taking on of fat, and this is far less visible elsewhere. There comes with this excess of fat the most profound conviction of the fact of pregnancy. By and by the child is felt, the physician takes it for granted, and this goes on until the great diagnostician, Time, corrects the delusion. Then the fat disappears with remarkable speed, and the reign of this singular simulation is at an end." In the same article, Dr. Mitchell cites the two following cases under his personal observation: "I was consulted by a lady in regard to a woman of thirty years of age, a nurse in whom she was interested. This person had been married some three years to a very old man possessed of a considerable estate. He died, leaving his wife her legal share and the rest to distant cousins, unless the wife had a child. For two months before he died the woman, who was very anemic, ceased to menstruate. She became sure that she was pregnant, and thereupon took on flesh at a rate and