Analyfis of the Air. 2 8 r 
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 copioufly > For 
what elfe is a red hot than fire ? And 
what elfe is a burning Coaly than red hot 
“ Wood! 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 
“ this fume burns in the flame. — Some 
bodies heated by motion or fermentation, 
if the heat grow intenfe, fume copioufly, 
and if the heat be great enough, the fumes 
will fhine and become flame: Metals in 
fufion do not flame for want of a copious 
fume, except fpelter which fumes copioufly, 
and thereby flames : AH flaming bodies, 
as Oil,Tallow, Wax, Wood, foflil Coals, 
Pitch, Sulphur, by flaming wafte and vanifh 
into burning fmoak ; which fmoak, if the 
flame be put out, is very thick and vifible, 
and fometimes fmells ftrongly, but in 
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. 
