Summary: A thoroughly characteristic example of the type of pathological lying which led to the invention of the term pseudologia phantastica. A young woman, well endowed physically and mentally, for years has often been indulging in extensive fabrications which have no discernible basis in advantages accruing to herself. The peculiarities of the falsifications have given rise to much trouble for her, her family, and for many others who have been incidentally connected with the situation. The genesis of the tendency was finally found in early experiences about which there have been much mental repression and conflict. In the background there was also defective home control and chronic neuropathic tendencies in both parents and in their kin. Janet B., 19 years old, we saw first in an eastern city at the request of her parents. There she had become involved in troubles which seemed particularly hard to unravel. However, we were told that this was an old story with her. A diagnosis of her mental condition was asked, and recommendations for the future. Janet had told some very peculiar stories at her place of employment where she was doing very well as a newcomer, without any seeming reason for fabrication. Several who had become interested in her were wondering if she were quite sane. After having made her way alone to New York, Janet readily obtained employment. After a couple of weeks she approached a department manager of the concern for which she worked and related a long story, which at once aroused his sympathy. She told him that her father and mother had died in the last year and that she was entirely dependent upon herself. When she was about four years of age she had been in a terrible accident and a certain man had saved her life. Naturally, her father had always thought very highly of this person and had pensioned him. Formerly he lived up in the country with his family, but at present was old, penniless, and alone in the city. Now that her parents were dead she was in a quandary about keeping up her father's obligation to the old man. Out of her $8 a week it was hard to make both ends meet. She had to pay her own board and for this man also. She found that he needed to be taken care of in every way; she had to wash his face and dress him, he was so helpless. She made no demand for any increase of salary and the story was told evidently without any specific intent. The services of a social worker were enlisted by the firm and the girl reiterated the same story to her, even though it was clearly intended that the case should be investigated. Janet's boarding-house was visited and there she was found to be living with distant relatives whom she had searched out upon her arrival in the city. They knew she had run away from home and, indeed, by this time the mother herself was already in New York, having been sent for by them.