The temperature was 99.8° F., and the pulse was 108. There was no tenderness or swelling of the joints, and there was no rash on the skin. No tache cérébrale could be obtained. There was a little cough, but there was no expectoration. The breath and heart-sounds were normal. The urine was acid, had a specific gravity of 1018, and contained neither albumen nor sugar. The spleen was not enlarged. The patient showed no signs of anæmia, but the blood was not examined. There was no wasting of the muscles, and the knee-jerks were present, although somewhat sluggish. The tongue was clean, and presented no sign of having been bitten. The patient would not protrude it voluntarily, and it had to be examined with the spatula. The condition of the patient remained practically unchanged for twelve days. The highest temperature recorded was on the second day, when it reached 100°; on the following day it was 99.8°, and from that time onward it was normal. The double optic neuritis continued, and the disks were observed to be getting paler. On February 13 (the seventeenth day of the illness) the patient was much more sensible, and recognized his mother, putting his arms round her neck. He was still unable to talk, although apparently he endeavored to do so, from time to time uttering a few unintelligible words. On being asked if he would like an orange he nodded his head, and he showed some signs of interest in a watch which was shown to him. The incontinence of urine and fæces continued, but food was taken with less difficulty. The movements gradually subsided. On the 17th the patient could say his own name, but beyond that could utter only inarticulate sounds, and failed to recognize letters or words, either written or printed. On the 20th he was able to speak plainly, although incoherently. He endeavored to get out of bed, and during the night was so noisy that he had to be removed from the ward. Urine and fæces were still passed under him. On the 22d he was quieter, and for the first time indicated that he wanted the bed-pan. The optic neuritis was less marked. On March 1 the patient was able to get up, and seemed to be quite well. On the 8th the following note was furnished by Mr. G. Hartridge, who had frequently examined his eyes during the course of his illness: “Pupils five millimeters each. React well to light, to convergence, accommodation, and consensually. Right vision 6/6, left vision 6/9. Right disk getting white; not much swelling of the disk; edges clearing. Retinal vessels, specially veins, very full and tortuous. Left disk pale (less so than right), dim; edges blurred.” The only medical treatment adopted was the administration for a few days of 15 minims of liquor arsenicalis three times a day. DEADY. =Stephenson, Sydney.—Concussion of the Retina.=—_Brit. Med. Jour., January, 1900._