142 , Vegetable Staticks . 
begins to move, fo as to make the bark 
eafily run, or peel off, I believe it would 
be found that the lower bark is firfl: moif- 
tened ; whereas the bark of the top branches 
ought firfl: to be moiftened, if the fap de- 
fcends by the bark : As to the Vine, I am 
pretty well aflurcd that the lower bark is 
firfl: moiftened. 
We fee in many of the foregoing Expe- 
riments, what quantities of mcifture trees 
do daily imbibe and perfpire : Now the ce- 
lerity of the fap muft be very great, if that 
quantity of moifture muft, moil of it, af~ 
cend to the top of the tree, then defcend, 
and afcend again, before it is carried off by 
perfpiration. 
The defed of a circulation in vegetables 
feems in fome meafure to be fupplied by 
the much greater quantity of liquor, which 
the vegetable takes in, than the animal, 
whereby its motion is accelerated 1 for by 
Experiment 1, we find the Sunflower, bulk 
for bulk, imbibes and perfpires feventeen 
times more frefh liquor than a man, every 
24 hours. 
Befides, nature's great aim in vegetables 
being only that the vegetable life be carried 
on and maintained, there was no occafion 
2 to 
