Source: L. 63: p. 144, § 4. C.R.S. 1963: § 3-18-4. L. 86: (3) added, p. 416, § 29, effective March 26. L. 87: (1) amended, p. 909, § 19, effective June 15. L. 91: (3)(a) amended, p. 696, § 13, effective April 20; entire section repealed, p. 883, § 1, effective June 5.