f par ) 
to be a riCGelTary Inflrament, it fliouJd ilien be iliQ work 
offomedays, and perfanps months, according ro the Oow 
'fteps by which Veger:; . le Juices are brought to Perfection 
and Maturity ^ v/Ik. nas, on the contrary, this work is 
ccmnleated in a fevv iiours,- and the Alimen't turned into 
Chyle, Blood, Spirits. It is more reafooabie to afcnbe 
this Change to rbe conftant ImpulTe the Fluids do receive 3 
nor can it feem Itrange, if v/e confider that the Hearc> 
beats four thonlaod times every hour, and tiie Compo- 
nent Parts of the Blood -are fo oitcn fhaken and bea en lo- 
gether, - which is more than fufficient to excite any iVlcii- 
an, without calling Fermentation to its Aid. 
S. S'mgfiimtl dees not think it befide his purpoie, to 
enquire 'iato the Nature of Fermentation in generah . and / 
inpnanimate Things in parcicuiar. Tho the Juices of Ve- 
getables have beyond all controverfie an Ebuilition and 
Fermentative Modon,' yet it may be doubted whither this 
proceed Jrom any Acid or Alkali, or other inteftine Prin- 
ciples. Bordll afcribes it to the Gravity of ihe Air, and 
tfais feems to have a good Ground and Foundation. It 
muft be put into a proper Veffel, clofely flopt, and put 
under Water it will keep fof a year : For by the Chilinefs 
of the Water, and the hindring the Ingrefs of New A^ir^ 
that which before lay concealed in its Pores lofes its Ela;^ 
fticity, and cannot excite a Commotion. In like manner^ 
Fruits, Flowers, Flefli and Fifti, are prcferved without 
Decay for a confiderable time 5 wdiich Experiments, with , 
many more to the -fame purpole, made and publifhed by . 
the late Honourable Mr Boyk^ are too vulgarly known to 
be infifted on here. From all which it is undeniably 
plain, the Inienfible Parts of all Bodies are agitated by 
the Air, 
Befides.if Fermentation dots only arife from theHetero- 
geneity ofMixt Bodies^lie inquires wdiy (hall after percola-^ 
lion, ifir very little, or not at all ? Why Wines diligently 
kept from, the Air flial! iaft fo long : Why Oyl, which is 
a 
