2i 6 Analyfis of the Air . 
which by Experiment 73 is found to be 
contained in its Tartar which adheres to 
the fides of the vefiel 3 it would by this 
means be found that air makes a very con- 
fiderable part of the fubftance of Vege- 
tables, as well as of Animals, 
But tho' from what has been faid, it is 
reasonable to think, that many of thefe par- 
ticles of air were in a fixt date, ftrongly 
adhering to and wrought into the fubftance 
of Apples; yet on the other hand it is mod 
evident from Exper 34? and 38, where in- 
numerable bubbles of air inceffantly arofe 
through the fap of Vines, that there is a 
eonftderabk quantity of air in Vegetables, 
upon the wing, and in a very adive date, 
efpecially in warm weather, which enlarges 
the fphere of their adivity. 
The effects of the Fermentation of mineral 
Subftances on the air . 
I Have above flhewn that air may be pro- 
duced from mineral Subdances, by the 
adion of fire in didillation. And we have 
in the following Experiments many in- 
stances of the great plenty of air which is 
generated by fome fermenting mixtures, 
abforbed 
