Each person operating what is generally known as a beauty parlor or other place where hairdressing, facial treatments, manicuring, or hair waving is done shall pay a license tax of $10 and for each operator so employed, as follows: In cities of more than 60,000 inhabitants, $6; in cities of less than 60,000 inhabitants and all other places whether incorporated or not, $4. This schedule of fees shall apply to beauty parlor colleges where said colleges engage in beauty parlor work for which a charge is made or material used is charged therefor.