f 1m J 
fixed air, but what it was very far 
from being before the fermentation. 
That this may be the cafe I was in- 
duced to fufpect by the following 
experiments : I {queezed the air out 
of different vegetables, keeping them 
under water, fuch as malva, potatoe- 
poms py olan apples, &c. I 
: s2. find. the moft part of 
this air f fixed air: but I was much 
Seafappotnted ; “fos this air was not 
diminifhable by fhaking it in. water, 
By examining it in another way, I 
found that the flame of a wax-taper 
would grow dim in it, and that it » 
was only fomewhat inferior in qua- 
lity to common air; for one meafure 
of this air drawn from an apple, 
with one of nitrous air, occupied 
1.245 and that expreffed from the 
leaves of hyofcyamus occupied 1.25». 
The air expreffed from malva anc 
