Vegetable Statich. ioj 
The allies as they imbibed the water drew 
the mercury up 3 or 4 inches in a few hours 
towards z ; but the three following days it 
rofe but 1 inch, 4 inch, and 4> and fo lefs 
and lefs, fo that in 5 or 6 days it ceafed 
riftng : The higheft it rofe was 7 inches, 
which was equal to railing water 8 feet 
high. 
This had very little effeft on the mer- 
cury in the gage a b , unlefs it were, that it 
would rife a little, viz. an inch or little 
more in the gage at a, as it were by the fue- 
tion of the alhes, to fupply fome of the air 
bubbles which were drawn out at i. 
But when I feparated the tube c 0 from 
the gage r z, and fet the end i in water, 
then the moifture (being not rcftrained as 
before) rofe fafter and higher in the alhes 
c 0, and deprelfed the mercury at a, fo as 
to be 3 inches lower than in the leg b, by 
driving the air upwards, which was inter- 
mixed with the afhes. 
I filled another tube 8 feet long, and 4, 
inch diameter with red lead ; and affixed it 
in the place of c 0 to the gages a b, r z. 
The mercury rofe gradually 8 inches to z. 
In both thefe Experiments, the end i was 
covered with innumerable air bubbles, many 
of 
