Analyfis of the Air. 203 
ftatiooary, neither reforbing nor generating 
air in many days. 
A very co2iik brown fugar yVilih an equal 
quantity of water, generated nine times its 
bulk of air j Rice^flower fix times its bulk ; 
Scurvy-grafs leaves generated and abforbed 
air; Peafe, Wheat and Barley did in Fer- 
mentation alfo generate great quantities of 
Air. 
That this Air, which arifes in fuch great 
quantities from fermenting and diffolving 
vegetables is true permanent Air, is certain, 
by its continuing in the fame expanded 
claftick ftate for many weeks and months ; 
which expanding watry vapours will not 
do, but foon condenfe when cool. And 
that this new generated air is claftical is 
plain, not only by its dilating and contrad- 
ing with heat and cold, as common air does, 
but alfo by its being compreffible, in propor- 
tion to the incumbent weight, as appears by 
the two following Experiments, which fhew 
what the great force of thefe aerial parti- 
cles is, at the inftant they efcape from the 
fermenting vegetables. 
Ex- 
