$6 Vegetable Staticks. 



the glafs tube z r, to the remaining branch 

 i r, and then filling the tube with water, fet 

 its lower end in the mercury x ; fo that now 

 the branch was placed with itjs top i down- 

 wards in the water, in the Aqueomercurial 



gage. 



It imbibed the water with fuch ftrength, as 

 to raife the mercury with an almoft equable 

 progreffion 1 1 + ~ inches by 3 o' clock (the 

 fun fhining then very warm) ; at which time 

 the water in the tube r i being all imbibed, 

 fo that the end i of the branch was out of the 

 water, then the air-bubbles pafiing more freely 

 down to /, and no water being imbibed, the 

 mercury fubfided 2 or 3 inches in an hour. 



At a quarter pad 4 o' clock, I refilled the 

 gage with water $ upon which the mercury 

 rofe afrefh from the ciftern, viz. 6 inches 

 the firit \ of an hour, and in an hour more 

 the mercury reached the fame height as be- 

 fore, viz. 1 1 + i inches. And in an hour 

 and j more, it rofe -i inch more than at firft ; 

 but in half an hour after this it began gently 

 to fubfide; viz. becaufe the fun declining 

 and fetting, the perfpiration of the leaves 

 decreafed, and confequently the imbibing of 

 the water at i abated, for the end i was then 

 an inch in water. 



July 



