According to Kelly, polycystic disease of the kidney occurs principally at two periods of life—before or immediately after birth, or after 40 years of age. Although many cases in adults have been reported in the literature, the disease is uncommon enough in infants to warrant the publication of the following instance as well as a brief discussion of the condition.
—H. D., female, 3 months old, was admitted to the A. Jacobi Division for Children of the German Hospital, May 13, 1915. Forceps delivery. Weight at birth not known. Breast feedings were given every two hours. The mother has had no miscarriages. There is no family history of lues or tuberculosis. Both parents and one brother of the patient are alive and well.
—About two weeks after birth the mother noticed that the infant's abdomen began increasing in size. Shortly afterwards the physician who was