(225 ILCS 710/45.44) (from Ch. 96 1/2, par. 4297)
    Sec. 45.44. Stopes opening directly from the floor of a drift shall be protected by a fence or a substantial hand rail not less than 3 1/2 feet nor more than 4 feet in height above the floor of the drift or such stopes shall be securely planked over.
(Source: Laws 1945, p. 1035.)