We found a girl in good physical condition, small for her age, but without sensory defect or important organic trouble. Hutchinsonian teeth. High forehead and well formed features. Expression old for her years and rather shrewd, and notably unabashed. No evidence of pelvic trouble. Clitoris large. All the other examination negative. Mentally we found her rather precocious. Tests well done. Reads and does arithmetic well for her age, in spite of much changing about and other school disadvantages. No evidence whatever of aberration. The examiner noted that she seemed a queer, sophisticated child, laughing easily and talking fast and freely. Evidently tries to put her best foot forward. Cooperates well on tests. On the ``Aussage'' test this little girl did remarkably well both as to the details and general ideas expressed in the picture. Absolutely no suggestibility shown. The examination was made before our later methods of scoring this test, and the inaccuracies were not counted, but even so the positive features are of interest, namely, the good memory and non-suggestibility . We found this youngster all along to be evasive, shifting and self-contradictory, even on vital points. She glibly stated anything that came into her mind, and ideas came very rapidly. She told us stories that with a moment's thought she must have known we could discover were false. This child was a foundling, and was adopted by people whose family was broken up by death when she was about 6 years old. By the time she was 8 years old she was expelled from school and was generally known as an habitual liar and a child who showed most premature sex tendencies. She then went much with little boys and was constantly in trouble for stealing as well. Occasionally good reports were made of her, but sometimes she was stated to have a perfect mania for taking things. A number of people who have tried to help her have spoken of the elaborateness of her verbal inventions. At one place she destroyed letters and took a check from the mail and tore it up. She talked freely of sex affairs to many people, particularly to women, and showed evidence of intense local feelings. At one time she expressed great desire to be spanked, probably from a sex impulse. One intelligent person reported her as being simply animal-like in her desires. In a country home a thoroughly intelligent woman was unable to cope with her and she was finally delivered into the hands of an institution. Through dearth of reliable information about the antecedents in this case we were unable to make a card of causative factors. It is sure, however, that the pathological lying and other delinquencies sprang from a background of congenital defect, probably syphilitic in nature, of lack of early parental care, of precocious sex desires, and sex experiences.