[Acts 1937, ch. 84, § 52; C. Supp. 1950, § 5178.61 (Williams, § 5176.53); Acts 1959, ch. 145, § 4; impl. am. Acts 1974, ch. 481, § 9; Acts 1974, ch. 481, § 21; T.C.A. (orig. ed.), § 51-333.]