124 Tbe Vegetation Book UL 
CHAP L 
Of the Motion and Courfe of the Sap. 
TR ST, asto the Cour of the sap, there are 
Three Parts in which it moveth 5 fè. the Pith, the 
Wood, and the Barque Firft the Piths in which 
the Sap moveth the Fix? year, and only the Firß 
sear. Or, it is Proprium quarto modo, to the Pith 
ofevery Annual Growth, and to the Pith of fach a 
Ze Wi) Growihonly, To be Succulent. That is, whether ofa 
Sprout from a seéd, or of a Sucker fiom a Root, or of a Cyow from a 
Branch ; 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: $. One caufe whercofis, that the Lympheduds in the Barque, 
being the firft year adjacent to the Pith 5 they do all that time, tranf- 
fufe part of their Sap into it, and fo keep it always Succulent. But the 
fame Lympheduéts, the year following, are turned into Wood; and 
the Veféls 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 firft year, always continges dry. 
3. 5 THE SECOND Part in which the sap mover, fab for- 
ma liquoris, isthe Wood. Which yet, it doth not in all Plants, but 
only in fomes and vifibly, in very few 5 as inthe Vine: In a Vine, E 
fay, the Sap doth vilibly afeend by the Wood. And this it doth, not 
only the firft year, but every year, fo long as the Vive continues to 
grow. But although this a/cevt, in or through the Wood, be every 
year; yet it is only in the Spring, for about the {pace of a Month; fe. 
in March and April. 
4. $. There are many other Trees,befides the Vine, wherein, about 
the fame time of the year, the Sap afcenderh, though not fo copionfly, 
yet chiefly, in the Wood. For if we take a Branch of two or three 
years growth, fuppofe of Sallow, and having firft cut the fame tranf- 
verfely; ifthe Burge be then alfo tranfverfely, and with fome force, 
prelled with the back of the knife, near the newly cut end 5 the sap 
will very plainly rife up out of the utmoft Ring of Wood. And if it 
be prefled in the fame manner, or a little more ftrongly, about an Inch 
lower, the Sap will afcend out Of every Ring of Wood to the Center. 
Yet at the fame time, which is to be 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 of the year, it rifeth in the Barque, fe, in the inner Margin adja- 
cent 
