P.S. at the request of a number of Gentlemen of this City I have been invided to offer this represention for casting, and, previously preparing a mould for a Canon in the Turkish style to Cary a marble ball incluting of won tousend ℔ Weight, as was annoinced in the papers the other day, to have ben disharged at the Dardanalles at the British fleet, according to calculation I estimate the total cost to be from 2 to 3000 $, including the metal the casting, the boring, the carriges &c. to be worked by the small number of ten men—

as the first disharge of this Gun may appear to dangerous owing to the Combustion of so much Gun Powder, I would engage to fire it myself—It coud be [much] less to d[. . . .]t on the execution wich a Cannon would do in the attack of an enomy, when landing or in a small Passage as this is obveus to all that bein moved to be the most terribil. The mechanical Power attendet on this Gun & the advantages it would possess in the defence of a Harbour, or coast will be evident on stating that it will carry a Ball of 1000 ℔ Weight half a myll when level—an 2000½ ℔ bolls 1200 or 1400 feet—er a Bom of sum weight if elevated 40° to mile er more—according to the Quantity of Powder employed.—