z *6 Analyfis of the Air. 



re-a&ion of thefe particles, which ebullition 

 ceafes not, till one part of the elaftick par- 

 ticles are fubdued and fix'd by the ftrong 

 attra&ion of the fulphur, and the other part 

 is got beyond the fphere of its attraction, 

 2nd 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 ; 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- 

 ticles of the fire are lodged in many ofthofe 

 bodies which it acts 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 2 A part 

 \^ undergoing the action of the fire. The 



acquired 



