The Anatomy Book 1 
bly extended by the length of the Pith; but are really diftonti- 
nuous and fhort, and as ‘tis faid, fomewhat anfwerable to the Gells 
of an Hony-Comb. This is the neareft we can come to them, by the 
bare Eye without the affiftance of a good Microfcope. Mr. Hook 
fheweth in his Micrography, That the Pores of the Pith, particularly of 
Elder-Pith, fo far as they are vifible, are all alike difcontinuous and 
that the Pith is nothing elfe but (as he calls them) an heap of Bub- 
bles. Although, in regard they are not fluid, but fixed Parts, I fhall 
choofe rather to call them, Bladders. As they appear through a good 
Tab. 3.f.6' Glafs, in a piece of Burdock, See in Tab. 3. But a more par- 
0253: 
17. 
ticular Defeription of the Sizes, Figures, and admirable Textures here- 
of, I have given in feveral places in the following Books. y 
19. $. Befides what this Obfervation informs us of here, iť 
6, farther confirms what in the Second Chapter we have faid of the 
Original of the Pith and Cortical Body, and of the fameneß of 
both their natures with the Parechyma of the Seed: which is no- 
C. 1.5.18. thing elfe but a Maß of Bladders3 as inthe Firlt Chapter hath been 
& Tab, 
faid. 
2 Gia Sa latha Pibe of many Plasts hegreater  Porei/6t! BULAN 
have fome of them leffer ones within them, and fome of them are 
divided with crofs Membranes: And betwixt their feveral fides, have, I 
think, other fmaller Bladders vifibly interjected. However, that 
they are all permeable, is moft certain. They ftand together not confa- 
fedly, but in even Ranks or Trains; as thofe of the Infertions by the 
breadth, fo thefe by the length of the Trank. And thus far there is a 
general correfponding betwixt the parts of the Root and Trunk, Yet 
are there fome confiderable Difparities betwixt them; wherein, and 
how they come to paß, and to what efpecial Uf and End, fhall next 
be faid. 
An Account _ 21. $. WE SAY then, that the sap being in the Root by Filtra- 
of the 
Growth of 
the Trank, 
tions, Fermentations (and in what Roots needful, perhaps by Circu” 
lation alío ) duly prepar'd 5 the prime part thereof pafling through 
the intermediate Coar@ure,in due moderation and purity is entertain'd 
at laftinto the Trunk, And the Sapof the Trunk being purer and 
more volatile, and fo it elf apt to afcend; the motion of the Trank, 
likewife will be more noble, receiving a difpofition and tendency to 
afcend therewith. And what by the Sap the Trunk is in part diposd 
to, by the refpe&ive pofition and quantity of its Parts it is effe&ual- 
ly enabled. For whereas in the Root the Liguous Body being in pro- 
portion with the Cortical, but little, and all lying clofe within its 
Center 5 it muft therefore needs be under its controul : on the con- 
trary, being here comparatively of greater quantity, and alfo more 
dilated,and having divers of its Branches ftanding more abroad towards 
the Circumference, as both in the Leaves and Body of the young Trunk, 
and Plume, is feen; it will in its own magnetical tendency to afcend, 
reduce the Cortical Body to a compliance with it, 
22. $. And the Trunk thus {tanding from under the reftraint of the 
Ground in the open Air, the difpofition of its Parts, originally different 
from that of the Parts in the Root, will not only be continued, but 
Improved. For by the force and preflure of the Sap in its collateral 
Motion, the Lignous Body will now more freely and farther be ie 
lated. 
