Besides these cases there are many who have previously been confined in hospitals for the insane, and who represent very unstable types. They may or may not have defective mentality, associated with the defect in self-control. They are one of the hardest classes of cases to deal with in institutions of any kind. The officers of penal institutions recognize their abnormality, and feel that they should be confined in insane hospitals because of their dangerous character. On account of the lack of a definite psychosis the insane hospitals naturally take them very unwillingly. Even though they show marked mental defect, institutions for the feebleminded are unwilling to admit them because of the demoralizing effect they produce on the more amenable types and the upsetting influence they have upon the institution routine. Many of these cases will doubtless be sent to defective delinquent institutions when those institutions shall at last be established. Whether the defect is a mental one or a nervous one matters little in their menace to society. The following case may be cited as an illustration of such a type: A woman was arrested for assault after trying to throw vitriol in her lover’s eyes. At that time she was taken from the jail to a hospital for the insane because she had marked hallucinations of sight and hearing. These at the time were thought to be of alcoholic origin, and disappeared quickly. She was transferred to the reformatory where she had previously served a sentence. At various times since her confinement there she has assaulted other inmates and matrons, often violently. Recently, after such an attack on a matron, she apparently seemed ignorant of what she had done. While she acknowledged having attacked people in the past, she felt that this time they had attacked her. A few days later she was found in a vague although rather savage mental condition, with marked delusions. She had had hallucinations of sight and was not oriented as to time or place. The woman is subnormal mentally and it would have been hardly possible for her to have feigned the condition. That evening, becoming annoyed at something, she flew into a tremendous rage, which was much more characteristic of her usual self than the previous dazed condition had been. Her violent temper seemed to bring her to herself, and the next morning she could recall but faintly what she had said the day before, although she remembered vaguely being much more frightened at what she thought she had seen in her room. Two days later she laughed at what she was told she had said, realizing the ridiculousness of it and could hardly believe that it was true.