13. And be it further Ordained, That it shall not be lawful for any person or persons to fire or discharge any Gun, Pistol, Fowling-Piece or Fire-Arms, or to make any other unusual noise within the limits of this City, whereby the inhabitants thereof may be alarmed, except in cases of necessity or in the performance of some public and lawful act of duty, nor to discharge or set-off any Rocket, Cracker, Torpedo, Squib or Balloon, containing any substance in a state of combustion, or other Fire-works within the said City, without permission first had and obtained in writing, from the Mayor of the City, under the penalty of six dollars and sixty-six cents for each offence, if free; and if the offender be an infant, the penalty shall be paid by his, or her parent, master or guardian; and if a slave, upon conviction before any Magistrate of this City, shall receive twenty lashes. Provided always, That nothing in this section shall be construed to extend to any Military exercises or reviews.