( 3039) 
Cortical Body^ inferted through iht Ligmuspart, h^^\i[chln-^ 
fertions the Sap , like the Bioud of ihe diffeminations of the 
Arteries^ is conveyed to its iotimate parts ; Our Author con^ 
jeituringjthat thedefignjwhereto all thefe parts are together 
concurreatjis the Circulation of the Sap* 
Having thus declared the degrees of Vegetation in the Roos^ 
he next ftiews the Continuance thereof in the Trun^^-y the ob^ 
fervables and parts of which are, i .The derived from the 
Cuticle of the Seed : 2. The Cortical Body, originated from the 
parensbj/ma of the Seed : The Lignous Body^ being the Pro- 
longation of the Inner Body^ diftributcd in the Lobes guid Plume 
of the Seed: 4. The and ?i//:>5 proceeding alfofrom 
the Piume^ as the fame in the Root from the J{adicle • fo that^ as 
to their Subftantial parts^ the L@bes oi the Seed^the ^^^/A^^ar.d 
Plume,ihe Jioot ^^udTrun^^vQ all one* Here notice is taken o! 
theShooting of the Lignous body m breadth 3 wherein are ob^ 
fervabie its Fibres^ Produftion of Rings, and efpectally Pores ^ 
znd: thefe of three forts, greaterjIefTer.and leaft of all; all con^ 
tinuous and prolonged by the length of the Trunk : whi;Ch hi 
prorethby an Experiment made by Mr* Hook^^ by filling ui 
(fuppofeio a piece of Char-coaQaW the faid Pores v/\ih AJercun 
which appears to pafs quite through thenij as is vifiblebya 
goodGlafs. The refult of all is, that the ^F^o^ part of aVe» 
getabie is nothing elfe but a Clufter ononiiraerable and ex* 
traordinary fmall Veffels or concave Fibres* He farther fhews 
the Infertions of the Cortical body in the Trun\^ and the Pores of 
thofe Infertions ^ in none of which he could obferre 
any thing, that may have the true nature and u(e of/^^<:?/w I 
the non-exiflence of which he is afferting. He difcourfes alio 
of the Pojition and Trad: of the Pores: and concludeth this 
Chapter by declaring. How theTm/z^afcends 5 How its pariF^ 
in confequence of that Afcent are difpofed ^ How that diipo- 
fitioii is confequent to the different nature and energy of the 
Sap 3 what the effects are of that difference 5 which way^ and 
how the afcends, vi^, by the joynt fubferviency of the 
Liinouf and the Cortical Bodj in fome, but in mo ft, and princi- 
pally,of the ^ignous Eody^ and Fith i the latter being here con- 
fiJei^d as a Curious Filtre of Nature's own contr-vance : where 
he. 
