i JO Vegetable Statkh. 
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 divifions in Fig. 28. fplit in halves; in 
which may be feen the manner of the 
growth of the laft year’s ringlet of wood 
fhooting a little upwards at x x ; and fhoot- 
ing downwards and fwelling much more at 
zz 5 where we may obferve, that what is 
fhot end-ways is plainly parted from the 
wood of the preceding year, by the narrow 
interftices xr y zr y whence it fhould feem, 
that the growth of the yearly new ringlets 
pf wood confifts in the fhooting of their 
fibres lengthways under the bark. 
That the fap does not defeend between 
the bark and the wood, as the favourers 
of a circulation fuppofe, feems evident from 
hence, viz. 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 effeft, by intercepting the 
courfe of the refluent fap, if the fap de- 
fended by the bark. 
But 
