



























































































1260 
Tab. 39. 
Tab, 32. 
Tab. 24, 
34- 
DGon27. 
22, 23. 
Tab, 19. 
: The Anatomy Book Ill. 
of Thifile, Borage, and others, three times as big again 5 appearing in 
the Microftope, like to the largeft Cells of an Hony-comb. Thofe of 
Plum, Worm-wood, Sumach, \els. OF El, Apple, Pear, leffer. OF 
Holly and Oak, till lefs. So that the Bladders of the Pith in Borage 
or Common Thifile, are of that Size, as-to contain, within the com- 
afs only of their Horizontal Area, about twenty Bladders of the Pith 
of Oak, Wherefore one whole Bladder- in Thiftle, is, at lealtan hun- 
dred times bigger, than another in Ozh, 
7. §. Of the size of thefe Bladders of the Pith, ’tis alfo to be no- 
ted, That it doth not at all follow the Size of the Pith it felf ; but is 
ftill varied, according as Nature defigneth the P2th for various ufe. 
Thus, whereas the Pith of Sumach, is Larger than that of Barberry; 
it might be thought, that the Bladders, whereof it is compofed, 
fhould be likewife Larger: Yet are they Three times as Small again in 
Sumach, as they arein Barberry. So the Pith of Plum, is far Lefs,than 
that of Pears yet the Bladders of the former are Four or Five times 
as big, as thofe of the latter. Sothe Pith of Hazel is almoft Three 
times as Little again, as that of Holly5 yet the Bladders in Hazel, are 
Ten times bigger, than in Holly. 
8. §. The Shape of the Bladders hath alfo fome Variety. For al- 
though, for the moft part, they are more round ; yet oftentimes they 
are angular: asin Reed-grafs, a Water-plant 3 where they are Gubicals 
and in Borage, Thistle, and many others, where they are pextangular, 
Sexangular and feptangular. 
g. §. Of the Texture of the Bladders, tis alfo to be noted, that 
many times, the Sides of the greater Bladders are compofed of lefler 5 
as is often feenin thofe of Borage, Bulrufh, and fome other Plants. In 
the fame manner, as the Sap-Veffels, are but greater Fibres made up of 
leffer. 
to. §. The Pith, though always originally compofed of Bladders, 
and fo Oxe Entire Pieces yet in procefs, as the Plant grows up, it hath 
divers openings or Ruptures made in it : oftentimes very regularly, and 
always for good ufe,and with conftancy obferved in the fame species of 
Plants. In Sharp-poynted Dook, many of the Poresare confiderably pro- 
longed by the length, like finall Pipes. In Walnut it fhrinketh up into 
tran{verfe Filmes or Membranes 3 as likewfe fometimes in Spanifb-Broom. 
Sometimes the Pith ishollow or Tubulary : either throughot the Truwk , 
as in Thiftl, Endive, Scorzonera, Marfh-Mallow : or fo, as to remain 
entireat every joynt; asin Souchus, Nettle, Teafles in which it is di- 
vided as it were into feveral Stories - and divers other ways. 
11. §. I-SHALL conclude this difcourfe with a further illuftrati- 
on of the Texture of the Pith, and of the whole Plant, as confequent 
thereupon. I fay therefore, (and have given fome account hereof, in 
the Anatomy of Roots) That as the Vefels of a Plant, fe. the Aer-Veffels 
and the Lymphedués are made up of Fibres; according to what I 
have in this Difeourfé above faid5 fo the Pith of a Plant, or the Blad- 
ders whereof the Pith confifts are likewife made up of Fibres. Which 
is true alfo of the Parenchyma of the Barque. And alfoofthe Iv- 
Jertions in the Wood. Yea, and of the Fruit; and all other Paren- 
chymous Parts of a Plant. 1 fay, that the very Pulp of an Apple, 
Pear, cucumber, Plum, or any other Fruit, isnothing elfe but « Ball 
of moft extream fiaall tranfparent Threds or Fibres, all wrapped and 
frich'd 


