92 ; Of the Vegetation Book II, 
55. $. If the Parenchymons Parts have much the greateft, the 
Root feldom liveth beyond Two Years; but afterwards perifheth ci- 
ther in whole, or in part; as do divers bulbous, tuberous, and other 
Roots; whether they are more Porous and Succulent, or more Clofe 
and Dry. If Porous, all the Liquid Principles ftanding herein more 
abundant, either by a ftronger Fermentation, or otherwife, Refolve 
the fixed ones of the Organical Parts; whence the whole Root, rots 5 
as in Potato's, So alfo Parfneps, and fome other Roots, which, in à 
hard and barren soil, will live feveral years, in another more rank, 
will quickly rot. If the Parenchyma be Clofe, then the Aer, chiefly, 
entring in and filling it up,thus mortifies the Root; not by Rottingthe 
Parts, but over Drying them; as in Satyrion, Rape-Cromfoot, Monks= 
(4) Para. hood, Ke. (a) 
53268 56. g. But if the Aer-Vofels have the greatefß Proportion, and efpe- 
E Z an cially if they are more large, and withall, are Spread more abroad : 
Tab. 9 the Root is Annual, as in Thorn-Apple, Nicotian, Carduus Ben. &xc. 
ie And of the fame Kindred, if any, thofe are Annual, which have the 
moft Aer-Vefféls. So Endive and Sonchus, which have ftore of 
Aer-Veffils, are both Annual: whereas Cichory, in which they are few- 
er, isa Perennial Root. For hereby a more copious 4er being Tran 
(b)P.2, §, fuled into all the other Parts 5 (b) they are thus, by degrees, hard- 
25,26. ned, and become fticky 3 and fo impervious' to the Sap, which ought 
to have a freeand univerfal Tranfition from Part to Part. As Bones, 
by Precipitations from the Blood, at length, ceafe to grow. Or the 
fame more abundant Aer, fo far volatilizeth the Liquors in the Root, 
that they are wholly advanced into’ the Trunk, and fo the Root is 
ftarved. Whence alfo the Aer-Veféls of the’ Trunks where they are 
numerous, and over proportioned to the Bulk of the Root, as in Corns 
they fo far promote the advance of the sap, as to exhauft the Root, 
fucking it into a Confamption and Death. 
How the 57. $. FROM THE Principles of the Parts, their Contents and 
Contents of the feveral Qualities hereof are alfo various; (c) the Fluid of each 
the feveral Orgamical Part, being made, chiefly, by Filtration through the fides 
Parts are thereof’; fuch of the Principles in the Sap, being admitted’ into, and 
male, tranfmitted through them, as are apteft thereunto. In the like manner, 
Çe) Mis $: as when Oy! and Water, being poured upon a Paper, the Water pafleth 
through, the Oy! fticks : or asthe Chyle is{trained through the Coats 
of the Gots, into the Legeal Vefféls: oras Water in Purgations, is 
{trained through the Glazds of the fame Guts, from the Mefente- 
vical, 
58. $. The Principles therefore of the Parenchymous Fibres being 
JSpirituons, acid, and aerial, they «will alfo'admit the like into them 5 
excluding thofe chiefly which are Alkaline and Oleous. (d) And as by 
the Conjugation of fach Principles in the Fibres, the like are capable of 
admittance into their Body : fo the Proportion and Union of the fame 
Principles, regulates the tranfiniffion hereof into their Concave. Where- 
fore, the predominant Principles ofthe Fibres being chiefly acid, next 
fpiritueus, and aery 5 the more aery ones will be tranfmitied. For if 
more of the» fhould fix they miftdo fo by fimilitude and adhefion : 
But where there are fewer fimilary parts to adhere to, fewer muft ad- 
here. The Fibres therefore contain fo many parts of Aer, as to admit 
many 
(å) P. 2. 
$. 19. 
-E 
