Even in organic disease, such as tuberculosis or arteriosclerosis, it may still be true that we can help the patient chiefly through psychotherapy. There may be little that we can do for his arteries or his lungs, and indeed the incurable destruction which has gone on in these organs may not at the time that we are treating the patient be producing any symptoms. All his symptoms just now may depend upon mental states which we can quite easily influence and thereby cure him of all that at present torments him, though we recognize that the organic malady remains untouched, unimproved. Many a case of tuberculosis suffers chiefly from his fears of the disease or from his discouragement. If we can rid him of his constant dread that the disease will advance or will injure others, if we can give him courage, the natural healing power of his tissues may be all that is needed to bring about the arrest of the disease. On the other hand, even an incipient case of pulmonary tuberculosis may go steadily on from bad to worse, because the patient is constantly fretting and worrying about his own condition, or about the present sufferings of his family. I remember a case of very early tuberculosis, but recently established at the summit of one lung, but unfortunately occurring in a patient of very active temperament, prone to fume and worry the instant that he was taken away from his work. He was devoted to his family, but as soon as he was aware of his trouble, he could think of them only as doomed to be dragged down by the contagion of his own disease or by the poverty resulting from his own inactivity. Unfortunately, no proper study was made of this patient's malady. No account was taken of his character and temperament. The condition of his lung occupied the whole field of the physician's vision. The condition of that lung demanded for the patient isolation and complete rest in a sanatorium. This was prescribed and carried out. The patient remained in the sanatorium about two months, fuming and worrying constantly. He then refused to stay any longer, left the institution against the advice of his physician, returned to his family, and died about two months later.