. eS 
Many of them even thrive the beft 
in it. The beft quality required 
therefore in the water ufed for this 
purpofe feems to be, to poffefs of 
itfelf air enough, fo as not to imbibe 
it readily from the plants; and not 
fo much as to be overcharged 
with it; for if the water is too 
a deprived of its own air, it 
a= Ss more difpofed to abforbe it 
from bodies plunged into it. Ana 
if water fhould be fo much impreg- 
nated with any air, this air would 
readily rufh into the fubftance of 
the leaves, and fpoil by its bulk, of 
by its particular nature; the elabo- 
ration of the dephlogifticated air; 
the more fo, as water, when found 
faturated with air, is found to pol- 
fefs this air in the form of fixed 
air, which differs too much from 
the nature of dephlogifticated ait, 
ae 
