Except as otherwise provided in Section 7-9-14 of this chapter, it shall not be lawful for the State Treasurer to pay or receive any money on account of the state but on the warrant or certificate of the State Fiscal Officer, issued pursuant to law. When he shall make any disbursement, he shall write or stamp the word “paid” in large characters across the face of the warrant, and shall make an entry in his office of the date of such warrant. The warrant thus cancelled shall be a sufficient voucher for the payment of the same.