I 3 Z Vegetable Statkks, 



Experiment XL VI. 



in Auguft, I cut off the bark for an inch 

 round, of a young thriving Oak-branch, on 

 the North-Weft fide of the tree. The leaves 

 of this and another branch, which had the 

 bark cut at the fame time, fell early, viz. 

 about the latter end of OElober, when the 

 leaves of all the other branches of the fame 

 tree, except thofe at the very top of the 

 tree, continued on all the winter. 



This is a further proof, that lefs lap goes 

 to branches which have the bark cut off, 

 than to others. 



The 19th of April following, the buds of 

 this branch were 5 or 7 days forwarder than 

 thofe of other branches of the fame tree ; 

 the reafon of which may probably be, be- 

 caufe lefs frefh crude fap coming to this 

 branch than the others, and the perfpirati- 

 ons in all branches being ceteris paribus 

 nearly equal , the leffer quantity of fap in 

 this branch muft fooncr be infpiffated into 

 a glutinous fubftance, fit for new produc- 

 tions, than the fap of other branches, that 



abounded 



