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Anatyfis of the Air, 



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" fulphur, blue; that of copper opened with 

 « fublimate, green ; that of tallow, yellow 5 

 " that of camphire, white ; fmoak paffing 

 " thro' flame cannot but grow red hot, and 

 <-' red hot fmoak can have no other appea- 

 " ranee than that of flame." 



But Mr. Lemery the younger fays, " that 

 « the matter of light produces fulphur, be- 

 " ing mixt with compofitions of fait, earth 

 " and water, and that all inflammable mat- 

 ters are fuch only in vertue of the par- 

 " ticks of fire which they contain. For in 

 " the Analyfis, fuch inflammable bodies 

 " produce fait, earth, water, and a certain 

 " fubtle matter, which pafles thro' the clofeft 

 " vefiTels, fo that what pains foever the ar- 

 " tift ufes, not to lofe any thing, he ftill 

 << finds a confiderable diminution of weight. 



" Now thefe principles of fait, earth and 

 " water are inactive bodies, and of no ufe* 

 " in the compofition of inflammable bo- 

 " dies, but to detain and arreft the parti- 

 " cles of fire, which are the real and only 

 " matter of flame. 



" It appears therefore to be the matter 

 iC of flame that the artift lofes in decom- 

 €t pounding inflammable bodies, Mem. dg 

 " r Acad. Anno 17 13." But 



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