
Book II. . of Roots. a 
to the Centre; they hereby carry off a more Copious and Aerial 
Ferment from the One, and communicate it unto the Other, For as 
the Sap enters the Bargue, the more liquid part, {till paffeth into the 
Jucculent Portions thereof; the more Aery, is {eparated into thofe 
White and Dryer Diametral ones; and in its paflage betwixt the Porti- 
ons of the Aer-Veffels,is all along communicated to them. Yet is it not a 
pure or fimple Aer,but fach as carries a Tindfure with it,from the Succife- 
rous Vefels. And therefore it is obfervable, That when the Diawetral 
Portions are more diftant, the Sap-Ve/éls run not in a Straight Line be- 
twixt them, but are Reciprocally fo inclined, as to touch upon them; 
asin Lovage is vifible: Thereby communicating their Tiniure to the 
Aer, as it paffeth by them, through the faid Déametral Portions. 
28. §. By the continual appulfe of freth Szp, fome, both of the 
aery, and of all the other parts thereof are tranfmitted into the Pith ; 
where, finding more room, it will yet more kindly be digested. Efpe- 
cially having the advantage herein of fome degree of Warmth; be- 
ing herein remoter from the Soil, and, as it were, Timn’d up within 
the Wood, or the Mafs of furrounding Veffels. So that the Pith, isa 
Repofitory of better Aliment gradually fupplied to thofé Succiferous 
Veffels, which are frequently fcattered up and down therein, and 
which afcend into the Trak, (a) But where no fucciftrous Veffels are Ca) Bite.3! 
mixed, herewith, it ufually becomes Dryer, and 1s replenifhed witha , 
more Aerial and Warmer Sap, whereby the growth of the Caulis is 
promoted,as by an Hot Bed fet juft under it. And in many Plavts with 
divers knobbed Roots, the younger are more fucculent,ferving chiefly 
to feed the Stalk: the Elder are {pongy and fill’d with Aer, for the fer- 
menting of the Sap, and more early growth of the Stalk: as in little 
Celandine, Dogftones and all of that Kindred, And thus all the Parts 
have a fit Aliment provided for their Nourifhment 

29. §. IN THIS Nourifhment, the Principles of the Sap are, as is tov the Ge 
faid, concentred and locked up one within another: (4) Whence it is, veral Parts 
that the Orgavical Parts, being cleanfed of their Contents, have none of are Nou- 
them any Taffe or Smell, as in the Piths of Plants, Paper and Linen rifh’d and 
Cloth is evident. (¢) Becaufe till by Digefiion, violent DeftiWation, or Form’d. 
fome other way, they are refolved, they cannot act upon the Organs us Be oe 
* ea: 
ofthofe Senfes. For the fame reafon, they are never finiured, ex- ? 
cepting by their Contests: and although, tothe bare Eye, they fre- 
quently thew White, yet viewed through a Microfcope, they all appear 
tranfparent. To like manner; asthe Serum of Blood, Whites of Eggs, 
Tendons, Hairs and Horus themfelves are tranfparent, and without 
much Smell or Tufte, their Principles being, in all of them, more or 
les concentred : But when ever thefe Principles, are forcibly refolved, 
they areever varioufly invefted with all thofe Qualities. 
30. §. Andas fromthe Concentration of the Principles, in every 
Organical Part, the {aid Parts do thus far, all agree: So, from the 
Predominion of the Principles of each Part, the reft are controuled, 
not only to a Concentration, but an Afimilation alfo; whereby, the 
Specifick Differences, of the feveral Organical Parts, are preferved. 
Hence the fucciférous Vefels are always Tough and very Pliable; for fo 
are all Barques, wherein thefe Vefels abound; fo is a Handful of Flax;, 
Which isnoching elle but ahtzap of the fiacciferons Vefels in the ae of 
that 






















































