Analyfis of the Air. iyx 



That illuftrious Philofopher Sir Ifaac New- 

 ion, in his thoughts about the nature of a- 

 cids, gives this rational account of the na- 

 ture of fermentation. tc The particles of 

 " acids — are endewed with a great attractive 

 €C force, in which force their activity con- 

 " fifts — By this attractive force they get 

 < e about the particles of bodies, whether 

 ec they be of a metal lick or (tony nature, 

 cc and adhere to them moft clofeiy on all 

 " fides, fo that they can fcarce be feparated 

 " from them, by diftillation or fublimation 5 

 ci when they are attracted and gathered to- 

 " gether about the particles of bodies, they 

 €C raife, disjoyn, and fhake them one from 

 " another, that is, they diffolve thofe bodies, 



" By their attractive force alfo, by which 

 " they rufh towards the particles of bodies, 

 " they move the fluid, and excite heat, and 

 Cf they fhake afunder fome particles, fo much 

 u as to turn them into air, and generate 

 " bubbles : And this is the reafon of diflb- 

 ?' lution, and all violent fermentation. Har* 

 <* ris Lexicon Tech. Vol. II. introduction." 



Thus we have from thefe Experiments 

 many manifeft proofs of considerable quan- 

 tities of true permanent air, which are by 



U 2 means 



