oe 
of air oozes out of the plat, and of 
what quality this airis; for any air 
ifuing out of a plant incorporates 
immediately with the furrounding 
air, and makes 2 compound whofe 
con#ituent parts are an intimate 
re of air from the plant and 
common air; and it would be as 
difficult to judge accurately how 
much dephlogitticated air fuch a 
plant has communicated to the or- 
dinary air which was ae in 
the jar, as it would be. for a chym 
judge accurately what quantity 
fof diftilled water was mixed with a 
certain quantity of common water, 
_ fome of it was really added to it 
on purpc fe to puzzle him} It may, 
; however, be afcertained, in an in- 
accurate way, what quantity of this 
beneficial air a plant, placed in a | jar 
fall of common air, has commu 
D = 
