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62 
Tab. 14,15. 
Tab. 10. 
Tab. 10, 
Tab. 14. 
The Anatomy Book IL 
Rings, which the precedent year compofed the Cortical Body of the 
Root : but by the Generation of anew Ring, next the Wood, is now 
thruft off and fhrunk up intoa Sk. So alfoin the Roots of Buglofs 
and Horfe-Radifh, as far as the Bladders in the former, and the Ve/els 
in the latter are Radiated 5 the Cortical Body feems either annually or 
oftener, to fhrink up into another new skim, as, the old ones fall off. 
And fometimes, perhaps, as in Asparagus, the whole body of the Per- 
pendicular Roots, except the woody Fibre in the Centre, becomes the 
fecond ski. Sothat the wearing away of the old Ski, fucceeds the 
derivation of the new one; as in Defcending Roots, the Confumpti- 
on of the Lower Parts, doth the Generation of the Upper. Becaufe 
the Barque {wells, and grows fometimes fafter than the Sk# can fall 
off, or give way tc it : therefore are the Roots of many Herbs, Barque- 
bound, as well asthe Trunks of Trees. 
3. §. This Skz is ufually, if not always, compounded of two 
Kinds of Bodies - which alfo is probable of the Goétaneous. The one, 
Parenchymous, and frequently conftructed of exceeding little Cells or 
Bladders ; which in fome Roots, as of Afparagus, cut traverfe, and 
viewed through a Microfcope, are plainly vifible. Thefe Bladders are 
of different Sizes; in Buglos, larger 5 in Afparagus leS5 and fometimes 
they coincide and difappear. But in thefé, and all other Roots, 
even where thefe Bladders appear not, the Parenchyma of the skin, 
is of the fame Subftantial Nature, with that other more vivid and bulky 
one of the Bark: As is manifeft, from its being thence Originated ; 
and alike Conformed, as fhall be feen and not only adjacent to it, as a 
Glove is to the Hand ; but continuous therewith, as the parts ofa 
piece of flefh, are one with another. 

4. §. OF THIS Parenchymons Body, the skizx confifteth chiefly, 
but not wholly ; there being many Lignous Vefels which are Tubulary, 
mixed therewith: which, though hardly by the Microfcope, yet 
otherwife, isdemonftrable. Forin tearing the SAz, you fhall do it 
more eafily by the length, than bredth 5 becaufe, bythe firft way, the 
continuity only of the Parenchyma, is diffolved 5 but by the latter, - 
both of this, and of the Vefels, thefe being pofited by the length of the 
Root: Sothat, as by the {malnefs of the Bledders of the Parenchyma, 
the Skivis Denfe 5 fo by thefe Vefels, is it Tough, 
5.-$. Again, if you cut a Root traverfe, and let it lie by for fome 
time, all the parts,where there are no Ve/éls,{hrink below the furface of 
the cut-end ; but where-ever Thefe are pofited, there is no fhrinking 5 
which oftentimes, evidently appears alfo in the Skiz : becaufe the faid 
Veffels, though, as the Bladders, they may coincide; yet they cannot 
vilibly fhorten or fhrink up in length ; no more than a Straw, whofe 
fides may yet be eafily crufhed together. 
6. §. Further, the Rovt being cut traverfe; if, near the cut-end, 
you very gently prefs the fide of the Root with the edge of your Nail, 
the Sap will thereupon arife fometimes from the Shiv; in the fame man- 
ner, as from any other part of the Root, where the like Veféls are pofi- 
ted. And although the Sp may likewife be exprefled from the Pith, 
and other Parts where fometimes, there are none of thefe Véfels 5 yet 
not without a folution of there continuity ; which here doth not fol- 
lows as appears, from the difappearing of the Sup, together with the in- 
termiffion 

