I ©4 Vegetable Statich. 
pulfioii or trufion, it iriiift needs have rifea 
out of the ftem into the tube. 
Now fince this flow of fap ceafesat once, 
as foon as the Vine was cut oft the ftem, 
the principal caufe of its rife muft at the 
fame time be taken away, the great 
perfpiration of the leaves. 
For tho' it is plain by many Experiments, 
that the fap enters the fap veflels of plants 
with much vigour, and is probably carried 
up to great heights in thofe veflels, by the 
vigorous undulations of the fun's warmth^ 
which may reciprocally caufe vibrations in 
the veficles and fap veflels, and thereby make 
them dilate and contrad a little $ yet it feems 
as plain (from many Experiments, as parti- 
cularly Exper. 13, 14, 15. and Exper. 43. 
where tho' we are aflured that a great quan- 
tity of water paffed by the notch cut 2 or 3 
feet above the end of the ftem ; yet was the 
notch very dry, becaufe the attradion of the 
perfpiring leaves was much greater than the 
force of trufion from the column of water , 
From thefe Experiments, I fay, it feems 
evident, that the capillary fap veflTels, out of 
the bleeding feafon, have little power to pro- 
trude 
