









ij8 



Vegetable Statich'. 



what and where that power is which 

 be equivalent to that provision nature 1 

 has made for the afcent of the fap i n C onf 

 quence of the great perfpiration of the leaves 

 The inftances of the JefTamine tree, and 

 of the Paflion tree, have been looked up- 

 on as ftrong proofs of the circulation of the 

 fap, becaufe their branches, which were far 

 below the inoculated Bud, were gilded: 

 But we have many vifible 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, re- 

 ceding and progreflive motion, occafioned 

 by the alternacics of day and night, warm 

 and cool, moilt 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 ratifying power then ceafing, the 

 greatly ratified 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 feverai others? 



whereby 



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