The Anatomy Book TL 
14. $. They feem, at firk, where they are Braced, to be Inof- 
culated 5 loas to be perviousone into another. But a more accurate 
view,efpecially aflifted by a Mi/crofcope,difcovers the contrary. Neither 
are they woun'd any way one about another,as Threds are in a Rope: 
nor Implicated, as in ravled Yarn, or the Knots of a Net: but only 
contiguous or fimply Tangent, as the feveral Chords in the Braces of 
a Drum : being thus joyned together by the Parenchymous Parts, asin 
fpeaking of the Pith, will be underftood how. Yet do not alw: 
fame Threds belong and keep entire to one Brace; but are fregn 
parted into lefler Threds; which are tranfpofed from Brace to Brace. 
Nor do they always, in whole or in part, prefently after their contin- 
gence, mutually fall off again; but, oftentimes, run along collateral- 
ly joyned together for fome fpace. EN, a 
15. $. Thefe Braces are of various number in divers Roots 3 more 
frequent in Fernfalem Artichoke, lef in Scorzonera, more rare in Cumfrys 
The Threds likewife are varioufly Divaricated ; fometimes more,where 
the Braces are frequent, as in Jerufalem Artichoke 3 and fometimes lef, 
where the Braces are rare, as in Scorzonera, Dandelion: And in all 
Roots, more frequent towards the Inner Verge of the Bark, 
16. $. By what is faid, it is partly implied, That thefe Threds, are 
not Single Veffels3 but aClufter of them, Twenty, Thirty, or more or 
fewer ofthem together. Yet as the Threds are not Inofculated in the 
Braces 5 fo neither are the Vefels, in the Threds. Nor yet Twilted 5 
but only ftand collateral together ; as the feveral Single Threds of the 
Silkworm, do in Sleave-Silk. Neither are thefe Veféls pyramidal, fo far 
as the Glafs will difcover; or, from probable Reafon, may be conjec- 
tured. Nor Ramified, fo as to be fucceffively propagated one from 
another, after the manner of the Veins in Animals: but Cylindrical , 
and Diftinétly continued, throughout ‘the length of the Root 5 as the 
feveral Fibres in a Tendon or Nerve. 
17. §.. THESE VESSELS are either themfelves of divers kinds, or 
ferve, at leaft, to conftitute divers Kinds, in divers Roots: of the dif- 
ferent Natures whereof, Although there may be other ways w y to 
judge 5 yet fo far as by Infpeétion, we may do it, chiefly, by the Di- 
verlity ofthof Liquors, which they feverally contain. Sometimes they 
yield a Lympha; and that Thin, as they do ina Parfuep 5 efpecially 
thofe that make a Ring, at the inward extremity of the Bark, See the 
Root it fel. That this Clear Sup afcendeth only from thefe Vefels, is 
certain, Becaufe no Liquor will do the like, from any Parenchymous 
Part, asChap. 2. hath been faid. And becaufe it is ofa different 
nature from the Sap contained in the Bladders of the Parenchyma 5 al- 
though of the fame Colour, yet fenfibly more Sweet. 
18. $ Sometimes they yield a Thick and Mucilaginous Lympha, as 
in Cumfry, as appeareth by its tenacity. From the Mucilaginous Coz- 
tent of thefe Veffelsit is, I füppofe, that the sap contained in the Blad- 
ders is rendred of the like nature, fo far as it approaches hereto , which 
fometimes is more, as in Marfh-mallow ; and fometimes but little 
Borage : For in prefling out the Liquor of this Plant, and then heating 
it over an indifferent fire 5 thefar greater part hereof remaineth thin; 
only fome certain ftrings and little bits of a gellied fubftance are m d 
herewith 5 which asit fcems, were originally the proper Liquor of th 
Mauciducts, 19. 
