SEC. 15. No person or persons shall fire any swivel, musket, fowling-piece, pistol, or other gun of any description within said city at a less distance than fifty rods from any dwelling house, or public highway, or street without written permission from the Mayor or one of the aldermen of said city; and every person so offending shall, for every such offence, forfeit and pay for the use of said city the sum of three dollars: Provided always, that nothing herein contained shall be construed to extend to the members of any military company when under the command of any military officer, not to prevent the firing of any gun or guns for the destruction of any noxious birds or animals by any person or persons upon his or their premises.