The Anatomy Book L 
Tab 2, f.9, 
the Pith is not only of the fame fubftantial nature, and by the In- 
Sertions doth communicate with the Barque; and that it is alfo aug- 
mented by it; which is true of the Pith of all Roots; but is moreo- 
ver, by mediation of the faid Infértions, wholly originated from it; 
that isto fay, from the Parenchymous Part thereof. The various appea- 
rances of the Infertions and Pith from the filamentous Parts to the 
top of the Root, fee in Tab. 2. The Pores of the Lignous Body, as 
it {tands entire in the faid filamentous Parts, are belt feen when they 
have lain by a night todry,after cutting. 
18. $. A farther evidence hereof are the Proportions betwixt the 
Cortical Body and Pith, For as about the inferiour Parts of the Root, 
where the Pith is (mall, the Cortical Body is proportionably great ; fo * 
about the top, where the Pith is enlarged, the Cortical Body (now more 
properly becoming a Barque) groweth proportionably lefs, fè. becaufe 
the Infertions do {till more and more enlarge the Pith. Likewife the 
peculiar frame of fome Roots, wherein befides the Pith, the Lignous 
Body being divided into two or more Rings,there are alfo one or more 
thick Rings, ofa white and foft fubftance, which ftand betwixt them 5 
and are nothing elfe but the Infertions of the Cortical Body colleéted 
into the faid Rings; but, towards the top of the Root, being inferted 
again,thus make a large and ample Pith 5 asin older Ferzel-Roots,thofe 
of Beet, Turnep, and fome other Herbs, is feen. 
19. $. The Pores of the Pith, as thofe of the Cortical Body, are 
* extended both by the breadth and length of the Root, much alike yet 
An Account 
of the 
Growth of 
are they more or lef of a greater fize than thofe of the Cortical 
Body. 
20. $. The Proportions of the Pith, are various; in Trees, but 
fmall 5 in Herbs, generally, very fair; in fome making by far the great- 
eft part of the Root; asin a Turnep : By reafon of the wide circum- 
ference whereof, and fo the finer Concotion and Affimilation of its 
Sap 5 that Part which in molt old Trurksisadıy and haríh Pith, here 
proves a tender, pleafant meat. 
21. $a Inthe Roots of very many Plants, as Turneps, Carrots, Gc, 
the Lignous Body, befides its main utmoft Ring, hath divers of its of: 
culated Fibres difperfed throughout the Body of the Pith 5 fometimes 
all alike, and fometimes more efpecially in, or near, its Center; which 
Fibres, as they run towards the top of the Root, (till declining the 
Center, at laft collaterally ftrike into its Circumference; either all of 
them, or fome few, keeping the Center ftill. Of thefe principally,the 
Succulent part of the Lignous Body of the Trunk is often originated. 
22. $. Some of thefe Pith-Fibres, although they are fo exceeding 
flender, yet in fome Roots, as in that of Flower de liz, they are vifibly 
concave, each of them, in their feveral Cavities alfo embofoming a ve- 
ry fimall Pith; the fight whereof, the Root being cut traverfe, and laid 
ina Window for a day or two todry, may without Glafes be obrain'd. 
And this is the general account of the Root ; thedeclaration of the man- 
nerofits growth, with the ufand fervice of its feveral Parts, we thall 
nextendeavour. 
23. $. ISAY THEN, That the Rudicle being impregnate, and 
fhot into the Moulds, the contiguous moifture, by the Cortical Body,be- 
ing a Body laxe and Spongy, is cafily admitted : Yet not all indiferimi- 
nately, but that which is more adapted to país through the fürroundin; 
Cuticle. 
