( ip9^ ) 
Iiopc then I (hall be able to impart the fucccfs to the Ro- 
yal Society. 
About the Engine, proved before a Committee of Par- 
liament, to demonftrate the power of Water expanded by 
Fire, I will tell you that we have here made very good Ex- 
periments of that matter before Winter. We have raifed 
Water to the heighth ot 70 foot, by a very commodious 
way, which may be yet very much improved 5 and be- 
caufe his Serene Highnefs was defirous to fee fomcwhat 
more, the Engine was left too long • in the River, fo 
that the Ice broke it, and carried away parr of the 
fame 5 and fince that time other defigns have been 
undertaken , fo that this Water Engine is not yet 
repaired : I hope in time we (hall again work about 
that as well as about a Furnace, to which the Hep- 
fian Bellows will be very ufeful. I have already made a 
little tryal of it, and I had a very ftrong Fire in a Furnace, 
to melt Glafs, Iron, or any other hard Mettal 5 and yet I 
could open the Furnace above the matter to be wrought 
upon^ and yet no Flame .would get out through the Aper- 
ture y nor cold Air from without get into the Furnace : 
So that it is very like this will be a great conveniency for 
feveral forts of Work, fince . Men may work the Matters 
when they arc mod foftned in the Fire 5 and they may be 
drawn up Perpendicularly^ that they may not be bent, as 
they are when we draw them Horizontally. .1 bejieve that 
would be good, efpecially to make eafily Glafs Pipes and 
Looking' glaffes of an extraordinary bignefs. It would be 
too long to give now the defcription of thefe Inventions 5 
and I have made mention of thefe but by the by, to fhew 
that thQ HeJJiaft Bellows are an Invention that may beap- 
plyy to feveral good ufes, and fo that deferve very much 
to be improved.j 
II. Part 
