All moneys received in the manner above provided shall be deposited with the city treasurer, and shall be kept apart in a fund known as the cemetery improvement fund, and shall be paid out only upon warrants drawn by the order of the cemetery board, if such a board exists, or by order of the body, department, commission, or committee duly authorized by ordinance to issue such an order, or by the legislative body of a city or town, which order shall be approved by such legislative body if such order is not issued by the legislative body, and shall be indorsed by the mayor and attested by the city comptroller or other authorized officer.