C^i3 ) 
If we review and confider well the Phenomena of 
this Experiment, we may find the refiftance of fome 
Hundred weight that was countervailed ; and not only 
fo, but with a much greater force exploded. 
That it was not produced by any Expanfion of the 
Common Air, for that was feen to rife out of the Li- 
quors themfelves, and was drawn out of them in their 
(eparate (late by the Exhaufting Engine, which faflers no 
Elaftical Air to lye concealed in any Liquors. 
That it was produced in an inftant by the mutual 
Collifion and Agitation of thefe A£live and Self-Expan- 
ding Liquors. 
That it v¥as not abfolutely generated, Je Novo^ but 
that the Air was antecedently there, we may reafbnably 
believe, although in a very differing flate from what 
it is in , when in Pleno. For all that the Exhaufting 
Engine does is to deliver the Air from a (late of Com- 
prelTion, by leaving it to fi retch it ftlf like a Bladder, 
that has full liberty to fvvell up, and has no hard Body 
to ftreighten or oppofe its Expanfion : So that we have 
cauft to conclude our Liquors to be furniftied with this 
fort of Air, which, being by the Accenfion of thefe 
two Liquors put to a new and violent motion, do ex- 
pand themfelves, de Movo^ and to that degree, as to 
anfwer fo great an Effed as is above-mentioned. 
The Circumftances of which Phienomenon will allow 
me to call this Mixture a fort of Liquid Gun powder ^ 
which brings me to make 
A Comfarifon tvtth Gun pomler and the Fiery Mixture. 
Thefe Thienomena agree, in that both do heat, and 
burn, and flame ; and alfo do confiderably refift and 
raife up Bodies that do oppofe them : In both, the Air 
is much agitated and expanded. For in Gun-powder 
you have much Air coil'd up and included in Particles 
Kk of 
