Of the IVood of 'Trees . 263 
between filk and common thread, neither fo foft or bright 
as filk, nor fo hard or fiat as hemp. Some of thefe fluffs 
are pure bark, and are called pinafles, biambonnes, &c. 
In others they mix filk with the bark, and call them 
ginghams and nilias; the fontalungees too, are part filk, 
part bark, and are only diftinguiftied by being ftriped. 
Of ,the wood. 
T HE next general part of a branch is the wood 
which lies between the bark and pith; it is 
compofed of parenchymous and lignous parts. The 
parenchymous part of the wood in all trees, though 
much diverfified, is dilpofed into many rays or infertions 
running between as many woody portions, from the 
bark to the pith. Thefe infertions are various according 
to the feveral forts of trees or plants, in pine, fig. 48S. 
and wormwood, fig. 490. they are not fo numerous as 
in fumach, fig. 494. in the apple, fig. 482. or in the 
hazel, fig. 484. 
Thefe infertions do not run only through the wood, 
but alfo flioot out beyond it into fome part of the bark, 
as in elm, fumach, wormwood, &c. 
The texture likewife of thefe infertions is alfo various 
in wormwood and moft herbs, they are manifeftly com¬ 
pofed of fmall bladders, yet larger in thefe than in 
trees. 
The wood is likewife compofed of two forts of bodies, 
that which is ftridlly woody, and the air vefiels. The 
true wood is nothing elfe but a mafs of antiquated lym- 
ph reduces, viz. thofe which are originally placed on the 
inner margin of the bark; for in that place there an¬ 
nually grows a new ring of lymphaedudls, which by de- -< 
S 4 grees 
