A clause at the beginning of a constitution or statute explanatory of the reasons for its enactment and the objects sought to be accomplished. See Townsend v. State, 147 Ind. 024, 47 N. E. 19, 37 L. R. A. 294. 62 Am. St Rep. 477; Fenner v. Luzerne County, 167 Pa. 632. 31 Atl. 862; Lloyd v. Urison, 2 N. J. Law. 224; Coverdale v. Edwards, 155 Ind. 374, 58 N. E. 495.