Commonwealth of Australia, Constitution act : with alterations of the Constitution made by the Constitution alteration (Senate elections) 1906 (no. 1 of 1907), by the Constitution alteration (State debts) 1909 (no. 3 of 1910), by the Constitution alteration (State debts) 1928 (no. 1 of 1929), by the Constitution alteration (Social Services) 1946 (no. 81 of 1946), and by the Constitution alteration (Aboriginals) 1967 (no. 55 of 1967), Statute of Westminster Adoption act 1942 (no. 56 of 1942).