Very willingly this young woman entered into the problem of solving the genesis of her own tendencies. She repeatedly said that she, of all things, wanted to break herself of this. She maintains she can perceive no beginnings. It seems to her as if she has always been that way. She spoke at first of this crowd of girls who successfully lied to their parents and talked to her about sex things, and we are inclined to believe that this really may have been the beginning, but later she affirms this was not the beginning and that her lying began in earlier childhood. All that she knows is that it has grown to be a habit and now ``when I speak it comes right out.'' After she has told a lie she never thinks about it again one way or another. Her conscience does not trouble her in the matter. She does not tell lies for what she gets out of it, nor does it give her any particular pleasure to fool people. She does not invent her stories, but at the time of talking to people she simply says untrue things without any thought beforehand and without any consideration afterward. To one officer she flung the challenge, ``Oh, I'm clever, you'll find that out.'' After months of effort and when it was clear that the girl for her own good must be given a course of training in an institution she quite acquiesced in the wisdom of such procedure, after a few hours' rebellion. It has been noted by many that one of Gertrude's outstanding traits is her lack of emotion. She never cries and only rarely does the semblance of a blush tinge her cheeks. She neither loves nor hates strongly. She seems remarkably calm under conditions where others storm. She says she never is frightened, that she never worries, or is sorry. She is well aware of her own ego; that she may be trespassing upon the rights of others never seems to enter her head. Certain simulations of physical ailments, which at times she showed, we could only interpret as part of her general tendency to misrepresent. Our summary of the causative factors in this case, made, unfortunately, partly on the basis of this unreliable girl's testimony, offers the following explanation of her remarkable tendencies: (a) There was early development of an inner life which dealt vividly in imaginary situations. This grew into a mental existence hidden entirely from the members of her family. (b) There was early experience with successful lying on the part of others, and this as a main episode probably occurred at the time when the emotion natural to first knowledge of sex life was present. (e) There was frequent experience with the falsifications which were her mother's frailty. (d) For her lying there were no parental disciplines or corrections at any time, so far as we have been able to learn. (e) The young woman shows unusually little emotion, and only sporadically demonstrates conscience. (f) There is unquestionably marked habit formation in the case.