A more thorough examination confirmed this tentative diagnosis. Although nothing of the sort had previously been suspected, it was discovered that the little fellow was nearly blind in one eye. Also he was suffering from a poor circulation. On the other hand, despite his mental retardation a careful psychological examination showed that naturally he was bright enough. It seemed evident to Professor Witmer, consequently, that the chief cause for the boy’s mental and moral defects lay in improper upbringing, plus the eye-strain which had undoubtedly made school work difficult for him, and had in addition been a source of neural irritation. In verification of this, after he had been provided with eye-glasses and given a few months of special training in the hospital school connected with the psychological clinic, the supposedly “feebleminded child” not only made rapid headway when placed in a regular school, but also showed a surprising moral improvement. Even diseases of the teeth may play no small part in the making of the wayward boy. There was brought one day to Professor Witmer’s clinic a youngster who for months had been the despair of his parents. He had got completely beyond the control of both home and school discipline; spent his days idling in the streets; seemed incapable of telling the truth; stole all sorts of small articles belonging to his parents, including his father’s watch, which he sold for five cents; and had even begun to steal from the neighbours, a weakness which soon brought him into the clutches of the law. Placed on probation by the judge of the juvenile court, he had behaved as badly as ever, until, as a last resort, it was decided to see what the psychological clinic could do for him. Beyond indications of some slight eye-strain nothing specially abnormal was found in his physical condition until his mouth was examined. Then it was seen that a number of his first teeth had not been shed, and that the second teeth were forcing their way out alongside the old ones, causing the gums to be greatly swollen and inflamed. Taken at once to the dental clinic he was examined more carefully by Dean Edward C. Kirk, who, advising gradual removal of the lingering first teeth, suggested the possibility that when the boy was relieved of all dental stress his conduct would show marked improvement. The outcome fully justified this suggestion. Says Doctor Arthur Holmes, who watched the case closely in all its stages (_The Psychological Clinic_, vol. iv, pp. 19-22):