^ P P E N D I X, 
blafling, is evident from common Experience . 
for when Trees are planted in a poor, or o- 
therwife unkindly Soil, they arc fo liable to 
blafl:, that they very rarely bear any Quantity 
of Fruit. 
Observation VL 
I, TTTHereas in Experiment XLVI. Vbh I. 
W p- 14 1. I have put it only as a Con- 
jedurc, that I believed it would be found up- 
on Tryal, that in the early Spring, the Sap 
moves firft in the lower parts of Trees between 
the Bark and Wood, and not in the upper Part, 
as it would do, if the Sap afeended thro* the 
Wood VelTels, and then defeended between 
the Bark and the Wood. And upon Enquiry, 
I am informed from Workmen that have been 
long accLiftomed to bark oaken Timber, that 
in the beginning of the Seafon, the Bark often 
runs well in the Stem, but not in the Branch- 
es : And vice verfa at the latter end of the 
Seafon it fliall run well in the Branches but 
not the Stem : And I am pretty well affured 
from my own Obfervations, that it is the fame 
in the Vine ; whereas the Bark of the Top 
Branches ought firft to be moiftened if the Sap 
defeends by the Bark. O b s e r- 
