Summary: In summarizing the characteristics of this woman we may first insist that she has ambition, push, and energy in high degree. Her personality as expressed in general bearing, features, and facial action is remarkably strong and convincing. Her ambition was shown in her work on our tests as well as in her social behavior. (We have wondered if it was not her desire to shine which prevented the typical performance of the pathological liar on the ``Aussage'' test.) Her self-confidence as expressed on numerous occasions is no less striking. ``I tell you, doctor, that I have told lies, but you will see that I will come out on top.'' Inez has been free from the overt problems of sex life. We have repeatedly been informed that she has been a girl of good character in this respect. ``I ran away from home for a good cause. I'm not one of those girls who is crazy about the boys.'' Usually Inez shows a very even temper. It is only when her own personality is trod upon that she grows angry, and obstinacy is then her leading reaction. Some pathological liars may be weak in character, but not Inez. She is the firmest of persons. On occasions her attitude is entirely that of the grand lady. Her type of lying is clearly pathological. It would often be very hard to discern a purpose in it, and over and over again she has defeated her own ends by further indulgence in prevarications. To her the utterance of lies comes just as quickly and naturally as speaking the truth comes to other people. Even in interviews with us when she was voluntarily acknowledging her shortcomings in this direction she went on in the same breath to further falsifications. The medical aspects of the case come under the same category as the lying. The dysuria, the spitting of blood, the sugar in the urine, the hairpins found twice in the abdomen, the simulated pains, neurasthenia, and bronchial attacks, together with her stories of accidents and fainting spells illustrate her general tendency. This behavior, like her lying, serves to feed her egocentrism, her craving for sympathy and for being the center of action. As with the lying, repetition of this type of conduct probably is largely a matter of habit. The bearing of this case on the problems of testimony is interesting. As shown in our account of tests done, when objective concrete material was considered by this woman she reported it well. It is only when her egocentrism is brought into play that she becomes so definitely unreliable. This is a line of demarcation that students of this subject would do well to recognize.