1 8 8 Analyfis of the Air. 
Hcncc alfo it is probable that there is 
forae air in acid fpirits, which is reforbed 
and fixt by them in diftillation. And this 
is further confirmed from the many air 
bubbles which arife from Aqua-regia, in 
the folution of gold ; for fince gold lofes 
nothing of its weight in being diflolved, the 
air cannot arife from the metalline part of 
the gold, but muft either arife from the 
Aqua-regia , or from latent air in the pores 
of the gold. 
Experiment LXXVI. 
A cubick inch of common Brimftone ex- 
panded very little in diftillation in a glafs 
retort ; notwithftanding it had a great heat 
given it, and was all diftilled over into the 
receiver without flaming. It abforbed fome 
air, but flaming brimftone by Experiment 
103, abforbs much air. 
A good part of the air thus raifed from 
feveral bodies by the force of fire, was apt 
gradually to lofe its elafticity, in ftanding 
feveral days ; the reafon of which was (as 
will appear more fully hereafter) that the 
acid fulphureous fumes raifed with that air, 
did reforb and fix the elaftick particles. 
