j Aymljfis of the Atr. 285 
[ efpecially when its elafticity is much incrcaf- 
I cd by the brisk a£Uon and re-adion of par- 
ticles of the fuel and ambient air. 
From this manifeft attraftion, adlion and 
reaftion, that there is between the acid, ful- 
phureous and elaftick aereal particles, we 
may not unreafonably conclude, that what 
we call the fire particles in Lime, and feve- 
j ral other bodies, which have undergone the 
' fire, are the fulphureous and daftick parti- 
cles of the fire fixt in the Lime 5 which par- 
ticles, while the Lime was hot, were in a 
very aftive, attrafling and repelling ftatc ; 
and being, as the Lime cooled, detained in 
the folid body of the Lime, at the feveraj. 
I attrading and repelling diftances, they then 
‘ happened to be at , they muft necelTarily 
continue in that fixt ftate, notwithftanding 
I the ethereal medium , which is fiippolcd 
freely to pervade all bodies, be continu- 
ally folliciting them to aftion : But when 
the folid fubftance of the Lime is diflblved, 
by the affufion of fome liquid, being there» 
by emancipated, they are again at liberty 
I to be influenced and agitated by each other's 
attraction and repulfion, upon which a vio- 
lent ebullition enfues, from the adtion and 
re-a£tion 
