Philadelphia 11^th May 1798 Sir, I am favoured with your letter of the 10^th instant. you inform me of the 10 four pounder Iron Guns at your post only five are uniform in length and weight— but you say nothing of the other five whether they are a medley or uniform in any degree with one another the five first you will please to Send to M^r Smith in York immediately, who has directions to get them on to this City without delay when I receive the dimensions of them the carriages may be set about and made ready by the time the Guns may arrive. you will please to describe the other five, and give me your opinion whether they also may not a pinch be safely used on board a Ship—