Vegetable Staticks, 145 
fap, becaufe their branches, which were far 
below the inoculated Bud, were gilded : 
But we have many viftble proofs in the Vine, 
and other bleeding trees, of the Tap’s reced- 
ing back, and pufhing forwards alternately, 
at different times of the day and night. 
And there is great reafon to think, that the 
fap of all other trees has fuch an alternate, 
receding and progreffive motion, occafioned 
by the alternacies of day and night, warm 
and cool, moift and dry. 
For the fap in all vegetables does proba- 
bly recede in fome meafure from the tops 
of branches, as the Sun leaves them $ be- 
caufe its rarifying power then ceafing, the 
greatly rarified fap, and air mixt with it, 
will condenfe and take up lefs room than 
they did, and the dew and rain will then 
be ftrongly imbibed by the leaves, as is pro- 
bable from Exper. 42. and feveral others 1 
whereby the body and branches of the ve- 
getable which have been much exhaufted by 
the great evaporation of the day, may at 
night imbibe fap and dew from the leaves 1 
for by feveral Experiments in the firft chap- 
ter, plants were found to increafe confidcr- 
ably in weight, in dewy and moift nightsj 
And by other Experiments on the Vine in 
L the 
