B. F—, female, æt. 33, admitted January 18th, 1903. Married in 1896; in January, 1900, miscarried at the third month and developed severe streptococcic infection with fever and delirium, which lasted fourteen days and nearly proved fatal. During her convalescence, one month after the miscarriage, she had a convulsive seizure with temporary paralysis of the tongue and right arm (for a few hours). These attacks recurred at intervals of three days to fourteen days, and were followed by various transitory paralyses. Her speech became difficult, her ideas confused. Later she had auditory hallucinations and delusions of persecution, and was sent to St. Jean Asylum on January 19th, 1902. On October 12th she returned home improved, but weak intellectually. Five days later she lost consciousness, and on the following day became maniacal and incoherent, and dirty in her habits; her legs were contracted; reflexes exaggerated; light reflex feeble. No history and no evidence of syphilis could be obtained on careful inquiry and examination.