1 5 o Vegetable Statich. 



more thriving the leaf-bearing Bud was, and 

 the more leaves it had on it, fo much the 

 more did the adjoining bark fwell at the 

 bottom. 



Fig. 30. reprefents the profile of one of 

 the diviiions in Fig. 28. fplit in halves; in 

 which may be feen the manner of the 

 growth of the lad: year's ringlet of wood 

 mooting a little upwards at x x -, and (hoot- 

 ing downwards and fwelling much more at 

 z z; where we may obferve, that what is 

 fhot end-w T ays is plainly parted from the 

 wocd cf the preceding year, by the narrow 

 interflices x r, z r ; whence it mould feem, 

 that the growth of the yearly new ringlets 

 of wood confifts in the mooting of their 

 fibres lengthways under the bark. 



That the fap does not defcend between 

 the bark and the wood, as the favourers 

 of a circulation fuppofe, feems evident from 

 hence 5 vfe. that if the bark be taken off 

 for three or four inches breadth quite round, 

 the bleeding of the tree above that bared 

 place will much abate, which ought to have 

 the contrary effect, by intercepting the courfe 

 of the refluent fap, if the fap defcended by 

 the bark. 



But 



