Anahjls of the Air. 1 7 j 
Whether Salts will have a good cff cCt in 
all, or any of thefe cafes, experience will 
belt inform us. There is certainly fufficient 
ground, from many of the foregoing Experi- 
ments, to encourage us to make the tryal, 
and they may at lead: be hints for further im- 
provements. 
We fee that Candles and burning Brim - 
Jlone do in a much greater degree deftroy 
the elafticity of the air, than the breath of 
Animals j becaufe their vapours are more 
plentiful, and abound more with acid fuh 
phureous particles, and are alfo lefs diluted 
with watry vapours, than the breath of Ani- 
mals is : In which alfo there are fulphureous 
particles, tho’ in leffer degrees; for the anL 
mal fluids, as well as folids, are ftored with 
them : And therefore the Candle andMatches 
ceafing to burn, foon after they are confined 
in a fmall quantity of air, feems not to be 
owing to their having rendred that air effete* 
by having confumed it s vivifying fpirit> but 
fnould rather be owing to the great quantity 
of acid fuliginous vapours, with which that 
air is charged, which deftroy a good deal of 
its elafticity, and very much clog and retard 
the elaftick motion of the remainder. 
T z 
And 
