the tax assessed by the second section of this ordi-
Sec. 8. No tax shall be levied on owners of wagons
or other vehicles, exclusively engaged in hauling into
the city wood, coal, bread, milk or marketing for
sale; but this ordinance shall not be construed to ex-
empt the owners of vehicles from taxation who reside
out of the corporate limits of the city, and who use
such vehicles within the city limits for hire.