The case here reported as being of unusual interest is that of a girl, infant L. F., Hebrew, nine months of age, who was admitted to the Thomas Wilson Sanitarium, July 11, 1913.
Family History.
—The father and mother were both well, aged 36 and 33 years, respectively. They had lost four other children in infancy, one from scarlet fever and three from "summer complaint." The patient was the only living child. There was no history of syphilis or of tuberculosis. The parents were apparently in comfortable circumstances and the hygienic condition of their home was described as "good."
Past History.
—The patient's birth was normal, weight 7½ pounds. She was exclusively breast fed for six months, and for the last three months a whole milk mixture had been used as a supplementary feeding. The patient had never been ill before and had gained steadily.
Present Illness.
—The baby is