41 P^e get able Static fa. 
branch d r which I had cut off in a known 
quantity of water, in the veffel x, (Fig. j.) 
the branch in the veffel x imbibed 1 8 oun* 
ces of water in 18 hours day and 12 hours 
night ; in which time only 6 ounces of wa- 
ter had paffed thro’ the ftem c b (Fig. 4.) 
which had a column of water 7 feet high, 
prefling upon it all the time. 
This again (hews the great power of per- 
fpiration} to draw thrice as much water, 
in the fame time, through the long (lender 
parts of the branch r (Fig. j .) as was preffed 
thro’ a larger ftem c b (Fig. 4.) of the fame 
branch ; but 1 3 inches long, with 7 feet 
preffure of water upon it, in the tube a b. 
I tried in the fame manner another Ap- 
ple-branch, which in 8 hours day imbibed 
20 ounces, while only 8 ounces paffed thro’ 
the ftem c b, (Fig. 4 .) which had the column 
of water on it. 
The fame I tried with a quince branch, 
which in 4 hours day imbibed 2 ounces -|- f, 
while but \ ounce paffed thro’ the ftem c b 
(Fig. 4.) which had 9 feet weight of water 
prelling on it. 
Note, All thefc (under this Experiment 
11.) were made the firft day, before the 
ftem 
