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Analyfis of the Air. 



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*i readily, and burn more vehemently than 

 « other bodies do, qu. 7- What his notion 

 of fire and flame is, he gives us in qu. 

 9 . and 10. qu. 9. " Is not fire a body heated 

 « fo hot as to emit light copioully ? For 

 « what clfe is a red hot Iron than fire ? And 

 « what clfe is a burning Coal, than red hot 

 « #W? Qu. 10. Is not flame a vapour, 

 " fume or exhalation heated red hot, that is, 

 " fo hot as to flame \ For bodies do not flame 

 " without emitting a copious fume, and 

 a this fume burns in the flame. Some 



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« bodies heated by motion or fermentation, 

 «< if the heat grow intenfe, fume copiouily, 

 « and if the heat be great enough, the fumes 

 " willlhine and become flame: Metals in 

 " fufion do not flame for want of a copious 

 fume,exceptfpelter which fumes copioufly, 

 and thereby flames : All flaming bodies, 

 as Oil, Tallow, Wax, Wood, fpffil Coals, 

 Pitch, Sulphur, by flaming waftc and vanilh 

 u into burning fmoak 5 which fmoak, if the 

 •* flame be put out, is very thick and vifible, 

 « and fometimes fmells ftrongly, but in 

 <t flame lofes its fmell by burning; and ac- 

 " cording to the nature of the fmoak the. 



" flame is of feveral colours, as that of 



' • " fulphur> 







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