[ 8 *' 3 
that Motion, and being fo much in the Air, kept 
him alive fo long. The Pi&ure * [fee Tab. V. Fig. 
i. 2.] is within Four Inches in Length and Breadth 
of the Bones. It is done by a very good Hand, and 
very exadt ; and every thing I have wrote to be de- 
pended on; and taken from the Bones; it is not a 
Copy. I was in Hafte : Mr. Vandenhagen , who drew 
it, finifhed mine, and died fuddenly, before he had 
quite done. 
XIX. A Narrative of a new Invention of ex- 
panding Fluids, by their being conveyed into 
certain ignifiedV elTels, where they are imme- 
diately rarefied into an elafiic impelling Force , 
fujficient to give Motion to Hydraulopneu- 
matical^J other Engines, for raifingWater 7 
and other Ufes , &c. by John Payne. 
r '| ^ O produce a great Power at a fmall Expence, 
is what every body defires in moving Machi- 
nery ; and is what, by this new Invention, we have 
proved by Experiments and Pradtice to be a great Im- 
provement, when applied to that noble Invention the 
Fire-engine : Therefore I fhall proceed to give a 
fhort Defcription of the Veffels and Machinery con- 
trived for that Purpofe ; viz. 
A Pot or Veflfel made of wrought or caft Iron, 
nearly the Figure of a Cone, whofe Diameter at the 
* Now in the Mufeim of Sir Hans Sloane. 
5 O 2 
Bafe 
