( «853 ) 
they arc of fuch a Difpofition as the Horizontal VcfleU 
which are in the Wood and the Bark ^ and thus thef 
agree with thofe Veffels defcribed in Fig. ii. by NS 
or PQ, 
Now if we find that the Horizontal Veffels or Canals, 
as well ih the Wood as in the Bark, are of one Contex- 
ture, and that the Afcending Veffels in the Bark of a 
Lime- Tree are alfo of the fame, we may more firmly 
conclude, that the Bark is produced from the Wood, 
and not from the Root. 
I have moreover turned my thoughts again upon the 
confideration of Cork, which is faid to grow as the Bark 
of a Tree upon a certain fort of Oak in Spam 5 which if it 
be fo, I imagine that the Burning which we perceive in 
the Leaves of Cork, is done by 2 hot Iron Plates, in 
order to make it flat and ftrait* 
I took then one of thofe pieces of Cork which are cut 
into Stoppers for Bottles, as is de(cribed by Fig, 13. 
ABCDEF. 
In this piece you mufl fuppofe that BG is the part 
that lay next the Tree, and that E was ihe outfide of 
the fame* 
In the faid piece of Cork, between G HI K E, I ob- 
ferv'd five diftinft Divifions, running acrofs from F to 
which is the part that furrounded the Tree 5 and from 
whence I conclude, that the Cork was arrived to fuch a 
thicknels in 5 years time, for each Streak denotes the 
growth of that year. 
lobferv'd alfo 4 diftinft dark ftrokes, of which G I is 
the middlemoft 5 I fuppofed they were great Canals, but 
could not conceive to what end they were made ^ but I 
concluded from thence, that in cafe theie great GanaU 
had not been fo cut through lengthways, the Cork would 
not have been fo thick. 
We muft likewife conclude , that the length of all 
Corks (in order to prevent either Moifture or Air from 
Ggggggggggg 2 paffing 
