When said council is satisfied that the work for which such special fund was created has been completed or abandoned, it shall fix a day for hearing on the question whether the unexpended balance then on hand should be transferred to the general revenue fund of the state, and shall cause a ten days’ notice of such hearing to be given such commission, board, officer, or person, at which hearing showing may be made why such unexpended balance should not be so transferred.
C93, §7D.12