Book II. 
The Anatomy 
an Inch or two Inches in length. This Wool being nothing ele, but a 
ertain number of Fibres Refolved from their Spiral pofition in thefe 
Veffels, and Drawn out in Length 5 and fo cluftred together,as fo many 
Threds or little Ropes: appearing thus more or lef, in the Leaves and 
fome other Parts of moft Plants ; but more remarquably in fome, as 
in the Vine, Scabious, and others. As alfo in the Scales of a Squil. In 
which laft, for example, they are fo cafily feparable, as further to 
fhew, what before was obferved ; viz. That the Plate or Zone, into 
which the 4er-Vefels are ufually Refolved, is not one Single Piece, or 
meer Plate ; but made up of feveral Round Fibres, all {tanding and 
running parallel, and fo knit together by. other fmaller ones, tranf 
verfly, in the form of a Zone. For if you break or cut a Leaf or Shell 
of a frelh Squill, till you come to the Aer-Veffels, and having fofily 
drawn them out, for about an Inch or more (to the naked Eye) in 
length, you then fingle out one or two of them from the reft, and 
row them, as they hang at the Shell, eight or nine times round, each 
Veffel will appear, through a Glafs, to confit of 8, 10, or 12 fmall 
Fibres; which, in the Unrefolved effel, ran parallel; but by this 
means, are all feparated one from another. See the Figures belonging 
tothe Third and Fourth Books. 
22. $. The Procef§ of their Spiration, is not, fo far as I have ob- 
ferved, accidental, but conftantly the fame; fil. In the Root, by 
South, from Weft to Eafit: But in the Trank, contrarily, by South, 
from Eaft to Weft. 
23. $. The Content of thefe Veffels, is, as hath already been inti- 
mated, more Aery. The Arguments for which, are, That upon a 
tranfverfe Cut of the Root, the sap afcendeth not there, where 
Thefe ftand. Being alfo viewed through a Microfcope, they are never 
obferved to be filled with Liquor. Befides a Root cut and immerfed in 
Water, till the Water is in fome part got into thefe Vefels, and then 
the Root taken out and crufhed ; the other Parts will yield Liquor, 
but Thefe, only Bubbles: which Bubbles are made, by fome (mall 
quantity of Liquor mixed with the Aer, before contained in the faid 
Veféls. To which, other Arguments will arife out of thofe Things 
that follow in the Second Part. As alfo for this Content, its not be- 
ing a pure or fimple, but Vaporoms Aer. Whether thefe Vefels may 
not, in fome Vegetables, and at fome times, contain Liquor, is doubt» 
ful. (a) Thus far of the Lignous Part. 
