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Daniel N., aged 52, carpenter, twenty-five years before his last sickness was suddenly attacked with a severe convulsion. There were no premonitory symptoms, excepting that for a little while before he stammered in attempting to talk. He had about twenty convulsions in all. The paroxysms were very severe, occurring sometimes once or twice a day, and then a day or two would intervene before their return, and thus continuing until they entirely ceased in a short time. There was no tendency to a return of the convulsions until his last sickness. There was no paralysis except aphasia for a short time. He was an invalid, however, for about a year, when he was sufficiently restored to resume his trade, which he continued during the intervening years till his last sickness. He did not seem in any way different from his former self excepting a loss of memory. His wife thinks