Analyfis of the Air. 299 
That great plenty of air is united with 
fulphur in the oil of vegetables, is evident 
from the quantity of air that arolc from the 
diftillation of oils of Annifeeds and Olives, 
in Experiment 62. When by fermentation 
the conftituent parts of a vegetable are fe- 
parated, part of the air flies off in fermen- 
tation into an elaftick ftate 5 part unites with 
the eflfential Salt,Water^ Oil and Earth, which 
conftitute the Tartar which adhere to the 
fides of the veflel 3 the remainder which 
continues in the fermented liquor, is there, 
fome of it, in a fix'd, and fome in an elaftick 
ftate, which gives brisknefs to the liquor . 
their expanding bubbles riling of a very 
vilible fize when the weight of the incum- 
bent air is taken off the liquor in a vacuum. 
And as there was found a greater quantity 
of air in the deer's horn, than in bloody 
we may alfo obferve it to be in a much 
greater proportion in the more folid parts of 
vegetables, than in their fluid : For we find 
in Experiment 55. 57. and 60. that near 
one third part of the fubftance of the Pcafe, 
heart of Oak and Tobacco, were by the ac- 
tion of fire changed from an un-elaftick 
ftate, to an elaftick air : And fince a much 
greater 
