Small injections of diarsenol at intervals of a month were continued, and Bright remained perfectly well for four months, when a peculiar seizure developed and lasted for several hours. This seizure consisted in a sort of somnambulism in which Bright stood up at a table, making marks on paper, and could not be persuaded to desist. After this seizure, Bright re-entered the hospital, again showed no mental or physical symptoms and no abnormalities of blood or spinal fluid. 3. What is the explanation of this seizure? It is possibly due to a small vascular insult, for which potassium iodid may be suggested with precautions as to hygiene and continued observation. He has since remained entirely well. =Another example where MILD MEASURES (though conceived to be “adequate”) SEEMED TO BE LEADING TO FAILURE; INTENSIVE THERAPY SUCCESSFUL.= =Case 122.= Levi Morovitz, a waiter, 39 years of age, came to the hospital with evidences of an old left hemiplegia, including the left side of the face (there was a left-sided Babinski, Gordon, and Oppenheim, and all the reflexes were fairly active; sluggish pupil reactions, Rombergism, and speech defect). Morovitz was much depressed, very slow in thinking processes, had a marked memory disturbance in general and apparently much deterioration mentally. A history was obtained to the effect that Morovitz had acquired syphilis at about 33, but that he had received practically continuous treatment ever since at a dispensary. He had, in fact, received four injections of salvarsan a year before coming to the hospital. Of late, Morovitz had become much more cheerful and talkative, imagining he could do great things if he had money. He had begun to eat very rapidly and to be very nervous. His feet had begun to drag; a distinct speech defect developed, but from this he had recovered. About six weeks before entrance, Morovitz had a shock, which left him with the left hemiplegia above mentioned and with considerable headache. Even while the preliminary examination was being performed, Morovitz developed a minor seizure without loss of consciousness. First came severe pain over the frontal region, which grew in severity so that the patient held his head in his hands. A bit later, twitching movements began in the thumb and in the fingers of the left hand, and the small muscles of the extensor group of the thumb and third finger showed contractions. These contractions grew more general and the excursions of the fingers greater, until finally every finger of the left hand became involved, whereupon movements of the same sort, though of smaller amplitude, began in the other hand. Finally the left arm began to jerk with alternate contractions of the biceps and triceps. The whole seizure lasted more than five minutes. During the seizure there was dizziness and pain in the head, chiefly on the right side.