121 Vegetable Staticks. 



But if it were 5 or 6 days fince the Vine 

 was cut, it would rife or fubfide but little ; 

 the fap-veflels at the tranfverfc cut being 

 faturate and contracted. 



But if I cut oft a joint or two off the 

 ftem, and new fixed the tube, the fap would 

 then rife and fubfide vigoroufly. 



Moifture and warmth made the fap moil 

 vigorous. 



If the beginning or middle of the bleed- 

 ing feafon, being very kindly, had made the 

 motion of the fap vigorous, that vigour would 

 immediately be greatly abated by cold eafterly 

 winds. 



If in the morning, while the fap is in a 

 rifing ftate, there was a cold wind with a 

 mixture of fun-mine and cloud -, when the 

 fun was clouded, the fap would immediately 

 vifibly fubfide, at the rate of an inch in a 

 minute for feveral inches, if the fun con- 

 tinued fo long clouded: But as foon as the 

 fun-beams broke out again, the fap would 

 immediately return to its then rifing ftate, 

 iuft as any liquor in a Thermometer rifes and 

 falls with the alternacies of heat and cold ; 

 whence 'tis probable, that the plentiful rife 

 of the fap in the Vine in the bleeding feafon, 

 is effected in the fame manner. 



When 



