There is hereby established in the Division of Health a Subdivision of Child Hygiene, to be administered and controlled by a Chief, subject to the supervision and direction of the Commissioner of Health. The function of the Subdivision shall be to foster the health and physical well being of children, and to that end it may provide such infant welfare stations, prenatal clinics, medical supervision of school children and such other means for the protection of children as the Commissioner of Health may deem necessary.