565.15  Surplus of tax.
  Any amount collected by a tax so levied and which is not required for the payment of such annuity shall be used for the purposes for which such gift or bequest is made and may be transferred to such fund as will enable it to be used for such purpose.
[C24, 27, 31, 35, 39, §10197; C46, 50, 54, 58, 62, 66, 71, 73, 75, 77, 79, 81, §565.15]