A.G. Davis, City Clerk, Charter and Ordinances, and Rules and Orders of the City Council. Revised February 1874 Page 52, Image 53 (1874) § 4

Abstract

No person shall haul unto, or lay at any wharf in the city, any vessel having on board more than twenty-five pounds of gun-powder, nor discharge or receive on board exceeding that quantity, without having first obtained from the Mayor a permit therefor, designating the wharf at which said powder may be landed or received on board.