That the Mayor and Counsel shall have full power and authority … to prevent gunpowder being stored within the city and suburbs in such quantities as to endanger the public safety. . .

To direct, control and prohibit the keeping and management of houses, or any building for the storing of gun-powder and other combustible, explosive or dangerous materials, within the city; to regulate the keeping and conveying of the same, and the use of candles and other lights in stables and other like houses.