§ 1. Be it enacted that six months after the passage of this act it shall be unlawful for any person to discharge, on the streets or alleys, of any city or borough in this Commonwealth, a flobert rifle, air gun, spring gun, or any implement which impels with force a metal pellet of any kind. § 2. Any person violating this act shall be arrested, and fined in the sum of five dollars before any committing magistrate; and for the second offense, shall be fined in the sum of fifteen dollars, and may undergo an imprisonment in the county jail for a period not less than ten days and not exceeding thirty days, the person so offending to pay all costs of prosecution.