It hereafter shall be the duty of every officer, agent and employe of the state government, who now is or hereafter shall be by law entitled to receive for his own use any fees, emoluments and perquisites whatsoever, not included in his salary, fixed by law and now paid by warrant of the auditor general, to pay the amount of said fees, emoluments and perquisites into the treasury of the state, in the manner and for the purposes by this act hereinafter directed.
72 P.S. § 4241