No money shall be paid by the City Treasurer upon any warrant, bond or coupon, except from the moneys belonging to the particular fund or appropriation upon which warrant shall have been drawn. Money shall not be transferred by the Treasurer from one fund to another after it has been received by him or her; nor appropriated to any other purpose than that for which it has been collected or paid, except by authority of the Mayor and City Council.
(Prior Code, § 31.069)