[331] 
In the (econd Seftion are explain'd the Impiwements 
made by the Author, on the P^eumaick Engine ; and he 
doth not think, that ever any hath been fb good as his 
he gives a full Defcription of it, and takes Notice of all 
that contributes to its exactnels ; and he relates fome Ex- 
periments that he hath made to prove liis Affertion ; 
He doth by the by, Anfwer Mr. BermM, who hath writ- 
ten fome thing againft the Honourable Mr. B^i/^, about 
the weighing of the Air in a Bladder ; and afterwards 
he comes to the new Ufes this Engine hath lately been ap- 
plyy to; whereof ril mention but this, that feemsto be 
of great Moment, becaufe without any Sugar or anyo- 
ther alteration, than what can be niade by a little bbiling, 
he can preferve great Quantities of Fruit with their Tail ; 
The Way is this ; he fhuts up the Fruits in Glafs VefTels 
exhaufted of the Air, and then puts the Veffel thus ex- 
haufted in hot Water, and lets it ftand there for ibme 
while ; and that is enough to keep the Fruit from the Fer- 
mentation, which otherwife would undoubtedly happen : 
Yet it is obfervable, that this is not generally true; but 
that it is good to have (everal ways for the preferving of 
Fruit : Raf berries^ for Example, that keep in Gelly better 
than any other Fruit.cannot be preferved although they be 
heated in vamo. Such or the like Obftrvations are annex- 
ed to almoli every Experiment, and at the latter end of 
this Seftion, the Author anfwers fuch Objeftions as may 
be brought againft the real ufefulnefi of thefe Engines ; 
whereupon he delcribes a Way how to exhauft the Air 
very fpeedily out of great VelTels, to be kept thus exhau- 
fted as long as we pleafe. 
The third Seftion gives a Relation of what hath been 
done in two Years time, in Mr. SarroHis Academy at 
Venice \ which had fome Relation to the Matter treated of 
in this Book ; There may be foen fcveral new and curious 
Experiments about Matters of Moment : But I ftiall only 
relate two of them, from whence the reader may judg 
Tt of 
