6 Analyfis of the Air. 
re-aclion of thefe particles, which ebullition 
ceafes not, till one part of the elaftick par- 
ticles are fubdued and fix'd by the ftrong 
attradion of the fulphur, and the other part 
is got beyond the fphere of its attraction, 
and thereby thrown off into true permanent 
air : And that this is a probable folution 
of the matter, there is good reafon to con- 
clude, from the frequent inftances we have 
in many of the foregoing Experiments, that 
plenty of elaftick air is at the fame time 
both generated and abforbed by the fame 
fermenting mixture 5 fome of which were 
obferved to generate more air than they ab- 
forbed, and others e contra abforbed more 
than they generated, which was the cafe 
of Lime. 
Experiment CXIX. 
And that the fulphureous and aereal par- 
ticks, of the fire are lodged in many of thofe 
bodies which it afts upon, and thereby con- 
fiderably augments their weight, is very evi- 
dent in Minium or Red Lead, which is ob- 
ferved to increafe in weight about A part 
in undergoing the aition of the fire. The 
acquired 
