300k IL of Roots. 
15. $. In fome Roots, they are Small, and 
Artichoke ; in others Small, but Ma 
they are Gr 
t, but Few 5 in th 
, which thofe e, their Number and 
bear to thoft of Jerufalem Artichoke, may be 
Of the fmalleft Kinds, as thofe of €: fo 
choke, and the like; It is tobe noted, That the ver vifible 
in the freth Slices of thefe Roots ; but after they have laynby a whileat 
lat, by a good Glafs, Clear Light , and fteddy View, are difeernä- 
ble. 
16, $. In fome Roots, the greater of thefe Voffels (tand in or next 
the Centre, asin Taraxacum, or Da delion 5 in others next the circum- 
ference, as in Horf-Radif. Sometimes each of them is from one end of 
the Root to the other, ofa more equal Size, or more Cylindrical; as in 
Marfb-malloe 3 but ufüally, they widen, more or Icf, from the Top, 
to the Bottom ofthe Root, asin Thorn-Apple: about the Top of which; 
they are, for the moft part, but of the Sixth, Seventh, and Eighth, 
Magnitude; fome of the Fifth, but none of the Third; but about the 
Bottome, they are moft of the Third, and Fifth: whence itis manifelt, 
That fome of them are, in the manner of Veins, fomewhat Pyramidal, 
Yetis it obfervable, That theirampliation proceedeth not towards, but 
from their Original, asin Nerves. 
17. $. Of thefe Veffils Seignior Malpighi hath obferved 5 Compo 
nuntur ( faith he ) expoftte fiftule Zona tenni & pellucida, velut argentei 
coloris lamina, parum lata; que, fpiraliter locata, & extremis lateribus 
unita, Tubum, interins & exterius aliquantulum afperum, officit. 
18. $. To whofe Obfervation I further add, That the Spiral 
Zone,or Lamina,as he calls it,is not everone Single Piece; but confifteth 
of Two or More round and true Fibres, although ftanding collaterally 
together, yet perfeétly diftiné. Neither are thefe Single Fibres 
themfelves flat, like a Zones but of a round forme, like a moft fine 
Thred. According asfewer or more of thefe Fibres happen tobreak off, 
from their Spiral location, together; the Zone is narrower, or broad- 
er: ufùally, Narrower inthe Trurk, and Broader in the Root, 
19. $. Of thele Fibres I alfo Obferve, That they are not Inofeulated 
fide to fide, but are Kvit together by other finaller Fibres 3 thofe be- 
ing, as it were, the Warp, and thefe the Woof of the Acr-Vefels. Yet 
[think the feveral Fibres are not interwoven juft as ina Webs but by 
akind of Stitch, as the feveral Plates or Bredths of a Floor-Mat. A 
clear and clegant fight of thefe Fibres, and of their Intermeftage, by 
flitting a Vine-Root, ora piece of Oak, may, witha good Glaf in the 
fides of their Greater Aer-Vo els, be obtained ; having much of the re- 
femblance of Clofe Needle-work, 
20. $. The Spiration of the Fibres ofthefe Veftls, may more cafily 
be obferved in the Trunk, than in the Root. And better in younger 
Plants, than other. Andnotfo well by Cutting as by Splitting, or by 
Tearing off fome {mall Piece,through which they run : their Conforma- 
tion being, by this means, not fpoiled. Yet this way, the Yeffels are 
feen, chiclly , Unrefolved. 
21. $. But in the Leaves and Tender Stalks of all fuch Plants, as 
fhew, upon br nd of Donne or 3 they may be feen 
Refolved and Dra and that fome times even to the naked Eye, 
Q an 
Tab. 13, 15- 
