s 3 Savings.
(1) The provisions of this Act shall be in addition to and not in derogation of any of the provisions of any other Act restricting the employment of . . . , . . . children. (2) Nothing in this Act shall apply to an industrial undertaking or ship in which only members of the same family are employed. (3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .