This case is being reported because of the age (7 months), history and rapid recovery of the patient.
M. N., a girl, was admitted to the Home for Friendless Babies, Aug. 17, 1930. Her birth date was Feb. 17, 1930. She was a well nourished, breast fed baby, weighing 17 pounds 3 ounces (7.8 Kg.).
The family history was negative except that the mother had had a number of abortions. The Wassermann reaction on both the father and the mother was negative.
The mother was also admitted, continuing to nurse the infant. The baby had a steady gain in weight until October 1, at which time she weighed 20 pounds 2 ounces (9 Kg.); she then began losing weight. This loss, however, was thought to be due to an inadequate milk supply, as the child was apparently normal. She was given supplementary feedings of cow's milk (boiled three minutes), diluted