4 On the M 77 N of, &c. 



mine : And mail only obferve, that, from a few trials made 

 with this view, I have been led to fufped, that, while a tree is 

 in leaf, its fap obferves a very different courfe, and moves by 

 laws very different from thofe, by which it is regulated in the 

 bleeding feafon. 



it. 





