Vegetable Statich. 117 



Rain and warmth, after cold and dry , 

 would make the fap rife all the next day, 

 without fubfiding, tho' it would rife then 

 flowed about noon 5 becaufe in this 

 cafe the quantity imbibed by the root, and 

 raifed from it, exceeded the quantity per- 

 fpired. 



The fap begins to rife fooner in the morn- 

 ing in cool weather, than after hot days $ 

 the reafon of which may be, becaufe in hot 

 weather much being evaporated, it is not 

 fofoon fupplied by the roots as in cool wea- 

 ther, when lefs is evaporated. 



In a prime bleeding feafon I fixt a tube 

 25 feet long to a thriving branch two years 

 old , and two feet from the ground, where 

 it was cut offj the fap flowed fo briskly, 

 as in two hours to flow over the top of the 

 Tube , which was 7 feet above the top of 

 the Vine 5 and doubtlefs would have rifen 

 higher, if I had been prepared to lengthen 

 the tube. 



When at the diftance of 4 or 5 days, 

 tubes were affixed to two different branches? 

 which came from the fame ftem, the fap 

 would rife higheft in that which was laft fix- 

 ed j yet if in the fixing the fecond tube there 

 1 3; was 



