
Book IIL of Trunks. ie. 
and dryed into a Skim: even as the very Skiz of an Adder, upon the 
gradual generation of a new one underneath, in time,becomes a slough: 
The inmoft portion of the Barque, is annually diftributed and added to 
the Wood : the Parenchymous Part thereof making a new addition to 
the Infertions within the Wood 5 and the Lymphedués a new addition 
to the Ligwous pieces betwixt which the Injertions ftand. So that a 
Ring of Lympheduéts in the Barque this year, willbe a Ring of Wood 
the next ; and fo another Ring of Lympheduths, and of Wood, fucceflive- 
ly, from year to, year. So the Table, for an Apple-Branch, theweth a Typ, 25 
quarter of a Slice of a Branch cut tran{verfly, of Three years growth: 5 4 : 4 48 
That of Barbery, of Twos That of Sumach, of One only ; That of ot Xe 
Elm, of Five. 
12. §. Hereby twothings maybe the better noted. Firft, the dif. 
ference betwixt the degrees of the aznual growths of feveral Trees: three 
years growth in an Oak, being as thick as five inan El. Secondly, £4 33: 
the difference betwixt the Azaual growths of the fame Tree 5 being 28. 
not ofa conftant proportion,but varying in thicknefs, as it fhould {eem, 
according to the feafoz of the year: whereby it may appear, what 
Seafon;, or kind of year, doth moft of all favour, the latitudinal growth, 
or the thickening of any Tree. i 
13. §. The Lymphedués thus antiquated or turned into Wood, do 
rarely,if ever, Bleed: but only tranfmit a kind of Demy or Vaporows Sap. 
And fome of them, as in the Heart of fome Trees, it is probable, That 
they tranfmit not any Szp, either in the form ofa Liquor, or a Vapour: 
and fo being gradually deprived of their Watery Parts,become the Heart, 
14. §. There is this further variety in the Wood; reprefented in 
Walnut, Fig and Oak, That fome certain parcels hereof, make either 
feveral {mall and white Rivgs, asin Ozk; or elfe divers white and crook- 
ed Parcels, tranfverfe to the Infertions, as in Wallzut and Fig. For it Typ 36 
feemeth, that,at leaft,in many Trees,fome portion of all the Kizds of Ve/- 31 ; 33: 
fels in the Bargue, are not only annually diftributed to the Wood, but ? ? °° 
do likewife therein retain the fame, or fomewhat like Pofitiov, which 
they originally had inthe Bargue. So that asall thofe bigger and dark- 
er Portions of the Wood, were originally, the Radiated Lympheduds of 
the Bargue: fo the little white Circles, or Parcels of Circles, in the fame 
god, were originally another fort of Sap-vefels in the Barque, fc. 
thofe which have a circular Pofition therein. 
15..¢. Inthe Branches of Fir, Pine, and others of the fame Kindred; 
there are fome few Turpentine-Veffels {catered up and down the Wood ; Tab; 33: 
and reprefented by the larger Black Spots, Which effels are eadem nu- 
mero, the felf fame, which did once appertain to the Barque; and do 
even here alfo in the Wood, contain and yield a liquid Turpentine. 
Only, being pinched up by the Wood, they are become much fmaller 
Pipes. 
oe §. THE Aer-Vefféls, withthe Infertions, and true Wood, alto- 
gether make up That, which is commonly called, The Wood of a Tree. 
The Aer-Vefels I fo call, not in that they never contain any Liquor 5 
but, becaufe all the principal time of the growth of a Plavt, when the 
Vegféls of the Bargue are filled with Liquor, thefe are filled only witha 
Vegetable Aer. 
17. §. Inalmoft all Plants, not one in fome hundreds excepted, 
this is proper tothe Aer-Vefels ; To have amuch more ample Bore or Ca- 
: XK 2 Z vity; 



































































