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The V egetation re Book IIL 

“yyy elk 
CHAD LE. 
Of the Motion and Courfe of the Sap. 
gp it RST, asto the €ourfe-of the sap, there até 
a y Three Parts in which ‘it woveth 5c. the Pith, the 
» Wood, and the Bargque Firft. the Piths in which 
the Sap moveth the Firft year, and only the Firft 
gear. Or, it is Proprinm quarto modo, to the Pith 
of every Azzual Gromth, and tothe Pith of fuch a 
LAIGDOYCA Growthonly, Ta be fucculent. That is, whether of a 
Sprout from a Seed, or of a Sucker from a Root, or of a Cyon froma 
Branch 5 The Pith is always found the Firft year full of sap. But the 
Second year, the fame individual Pith, always becomes dry, and fo it 
continues ever after. 
2. §. Onecaufe whereofis, that the Eymphedués in the Barque, 
being the firft year adjacent to the Pith 5 theydo all that time, tranf- 
fufe part of their Sup into it, and fo keep it always Succulent. But the 
fame Lympheduéts, the year following, are turned into Woods. and 
the Veffels which are then generated, and carry the Sap, ftand beyond 
them, in the Barque. So that the Sap being now more remote from 
the Pith, and intercepted by the new Wood, it cannot be transfufed, 
with that fufficient force and plenty as before, into the Piths which - 
therefore, from the firlt year, always continues dry. 
3-§. THE SECOND Part in which the sap moves, Suh for- 
wa liquoris, isthe Wood. Which yet, it doth not im all Plats, but 
only in fome; and vifibly, in very few; as inthe Vive: In a Vine, I 
fay, the Sup. doth vifibly afeend by the Wood: And this it doth, not 
only the firft year, but every year, fo long as the Vine continues to 
grow. But although this acet, in or through the Wood, be every 
years yet it is only in the Spring, for about the {pace of a Months /e. 
in Marchand April, 
4.§. There are many other Trees,befides the Vine, wherein, about 
the fame time of the year, the Sup afcendeth, though not fo copioufly, 
yet chiefly, inthe Wood. Forifwetakea Branch of two. or three 
years growth, fuppofe of sal/ow, and having firft cut the fame tranf- 
verfely; ifthe Bargue be then alfo. tran{verfely, and with fome force, 
prefled with the back of the knife, near the newly cut end; the Sap 
will very plainly rife up out of the utmoft Ring of Wood. And if it 
be preffed in the fame manner, or alittle more ftrongly, about an Inch 
lower, the Sap will afcend out of every Ring of Wood to the Center. 
Yet at the fame time, whichis tobe-noted, there arifeth no Sap: at all 
out of the Barque. 
5- §. Whence appears the Error of that fo Common Opinion, 
That the Sap always rifeth betwixt the Wood and the Barque. The con- 
trary whereunto is moft true, That it never doth. For the greater 
part ofthe year, it rifeth in the Barque, fe. in the inner Margin adja- 
cent 


