Vegetable Stanch. 9 1 
branch ; the more the fun was upon it, the 
fafter and higher the mercury rofe, but the 
Vine- brandies could not draw it above 4 
inches the firft day, and 2 inches the third 
day. 
*■ And as the fun fet, the mercury fometimes 
fubfided wholly, and would rife again the 
next day, as the fun came on the Vine- 
branch. 
And I obferved, that where fome of thcfc 
Vine-branches were fix’d on the North-fide 
of the large trunk of a Pear-tree, the mer- 
cury then rofe moll in the evening about 6 
a-clock, as the fun came on the Vine branch. 
Experiment XXIV. 
Auguft 9, at 10 ante Merid. (very hot 
funlhine) I fixed in the fame manner as 
Ex. 22. aNon-pareil branch, which had 20 
Apples on it ; it was 2 feet high, with la- 
teral branches, its tranfverfe cut t inch dia- 
meter : It immediately began to raife the 
mercury moll vigoroufly, fo as in 7 minutes 
it was got up to z 12 inches high. 
Mercury being ij f times Ipecifically 
heavier than water, it may eafily be eftima- 
ted to what height the feveral branches in 
thefe experiments would raife waters for 
if 
