els in fe- 
es of the 
many Pa 
ns there- 
chord 
Book II. of Trunks ; 107 
38. $. Thehollow of the Wood is filled up with the Pith. In 
the Circumference of which, ftands a Ring of Ljmpheditus, of the 
fame fort with thofe next to the Wood without. 
39. $. All the Parts of thefe Trunks, may, as I have now de- 
feribed them,be obferved without a Microfcope : excepting the Bladders 
and number of Aer-Veffels. Yet Three things are hereunto neceflary 5 
viz, a good Eye, a clear Light, and a Rafór, or very keen Kaife, 
wherewith to cut them with a fmooth furface, and fò, as not to Diflo. 
cate the Parts, 
40. $. UPON Infection alfo by the length, there are fome parti- 
culars, common, more or leß, to moft Plants, yet better obfervable in 
fome, than in others. As firft, the Retienlation of the Vefféls, (formerly 
deferibed ) not only in the Wood, but in the Barque : which is evident Tabla 
s A A . 19% 
in a young Branch ofCorin, upon the very Surface thereof, when fome 
of the Peffels begin to be calt off into the Skin. And fo, by ftripping 
off the Sim, upon the Surface of the Wood. 
41. $. Incutting by the length, as well astranfverfly, the young 
Fibres, which grow within the Wood in the Edg of the Pith, are alfo 
feen. As likewife the manner of the Derivation of the Parts of the gud 
fromthe Branch or Stalk asin Sonchus. There are alfo many Va- s 
rieties in the Pith, fuch as thofe hereafter mentioned (2) which fall un- (2) Chap-4 
der obfervation only in cutting by the length. 
GH A Pi IL 
Of the Barque, as it appears through a good Microfcope: 
B NOW proceed toa more particular Deféription of 
4 feveral Trunks and Branches, as they appear through 
good Glaffes. 
1. $. Now the Trunk, or Branch of every Tree, 
p hath Three General Parts to be delcribed 5 fò the 
Barque, the Wood, and the Pith. That likewife of 
f @ every Herbaceous Plant, hath either the fame Three 
Parts 5 or ele Three Parts Analogous; fè. the Cortical, the Lignons, 
and the pithy Parts. 
2. $. The Barque confitteth of two Parts, fè. the outmoft or Ski, 
and the Main Body. The skin is generally compofed, in part, of very 
{mall Veficles or Bladders, clulterd together. That is, originally it is 
105 but as the Plant grows, the Skin dries, and the faid Bladders, do 
very much (hrink up and difappear. 
3. $. Amongft thefe Bladders of the Skin, there are ufually inter- 
mixed a fort of Lignous Fibres, or Vefels, which run through the length Tab, 20. 
of the skin 5 asin Mallow, Nettle, Borage, Thiftle,and moft Herbs. Which 
is argued not only from the Toughnefs of the skin by means of the faid 
Veffels 5 but in fome Plants,may be plainly feen, asin Teafle, In which, 
Ue the 
