It is the second group, however, _i.e._, those patients suffering from the transitory prison psychoses, which especially justify the establishment of psychiatric annexes in connection with prisons. We have seen how detrimental to prison discipline these individuals are, even when in a condition which might be considered normal to them, and we can easily surmise what it must mean to care for them in prison during one of their mental upsets. It is therefore of the utmost importance, both for the prison administration and for the individual, that these patients should be transferred to a properly appointed hospital in as short a time as possible, and this can be done most readily when the hospital and prison are within the same walls, and more or less under the same management. On the other hand, we owe it to the prisoner to bring him under proper care as soon as possible. The practice of sending these individuals to criminal departments of general hospitals for the insane has many objections. In the first place, no matter how modern the equipment of such departments, most of them cannot afford the proper kind of treatment to these individuals. The idea that the removal from prison to a criminal department of an insane hospital will have a beneficial effect upon the prisoner because of the more lenient environment into which he is taken is entirely delusional in the case of the degenerated habitual criminal. These individuals, if the public safety is to be kept in mind, can receive but very limited privileges in a hospital for the insane. The modern hospital is not constructed with the idea of caring for dangerous criminals, and in many instances the habitual criminal, who because of his dangerous tendencies and ever readiness to escape, has to be constantly kept under lock and key, would be much better off if he were treated within the enclosure of the prison. There the construction of the place permits of a wider latitude of outdoor exercise. An annex located within the enclosure of a prison could well afford to allow its patients the freedom of the enclosure, while this can manifestly not be done in a general hospital for the insane. Then again, there is the unavoidable delay attendant upon the commitment of a prisoner to an insane hospital. As I have already stated elsewhere, it is not a rare occurrence to receive patients into the hospital who have entirely recovered from their mental disorder before leaving the prison. Furthermore, the expense and danger always connected with the transfer of insane criminals from prison to hospital and back again, if the hospital is any distance from the prison, must be kept in mind.