The First Steam-Boat

17 aRot>e fixed to ths Tifton that Aides up and down the Cylinder Note. This Rope U is the fame Rope that goes round the Wheel 7) in the Machine. It hath been already demonnrAtedj that aVefiel ot 2.0 Inches Diameter, which is but two Foot anå a Half, when the Air is driven out, the JXtmoipherewilI pieis on it to the Weight of 4- Ton 15 Hun- dred and upwards^ when proper Initru ments for ^is Work are applied to it, it mull åiivea Veil'd, with a gj'^at foiee1, Note. The bi'gnefs of the Machines may be proportioned to the Work that is to be pexfoimed by them > but rf wch a force as is apy]yd inthisfinl Eliay be not fufficient for any Purpose that may be required, there is room to make fach Addition as will move an immenfe Weight With tolerable Swiftnefs. It is my Opinion, it -will not be found Practicable to place the Machine here re- commended, in the Veflel itfelfthat is to be taken in or out of the Port, üc. But ratherin a feparate VeiTel, for thefe Kea- fons: i, This'Machine may be th ought Cum- bersome and to take up too much Xoom in a Veffel laden with Goods, Proviûons, &Ï-