An Act amending the act of June 19, 1913 (P. L. 528, No. 338), entitled "An act fixing the penalty for murder of the first degree; regulating the procedure incident to the infliction thereof; prescribing and providing for a place and manner of inflicting said penalty on the grounds of the new Western Penitentiary of this Commonwealth, in Centre County; making an appropriation therefor; repealing inconsistent legislation; and providing that neither this act nor said repeal shall apply to any case in which it shall appear that said crime was committed prior to the date of the approval of this act," further providing for the procedures for the implementation of the death penalty.