141 Vegetable Staticks. 



begins to move, (o as to make the bark 

 eafily run, or peel off, I believe it would be 

 found, that the lower bark is firft moiftened ; 

 whereas the bark of the top branches ought 

 firft to be moiftened, if the fap defcends by 

 the bark: As to the Vine, lam pretty well 

 affured that the lower bark is firft moiftened. 

 See Vol II. p. 264. 



We fee in many of the foregoing expe- 

 riments, what quantities of moifture trees 

 do daily imbibe and perfpire : Now the ce- 

 lerity of the fap muft be very great, if that 

 quantity of moifture muft, moft of it, afcend 

 to the top of the tree, then defcend, and 

 afcend again, before ic is carried off by per- 

 fpiration. 



The defect 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; for by 

 Experiment 1. we find the fun-flower, bulk 

 for bulk, imbibes and perfpires feven teen 

 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 



to 



