(9H) 
Body of the tree about i j inch deep^and fo round, on every fide 
of the fame tree , and of others of the fame fort, ( all exhauftcd 
of their ftp the day before )fome deeper and fome fliallower, 
with a good large Auger; and one quite through 5 floaping. 
From this experiment , after divers and various trials , may be 
foundthedifference of the Saprifing on the North and South 
in Sun andfliade, andfo likewife from that which comes from 
the Bark , and that which afcends in the inner part of the tree. 
The weight alfo may be compared of that, which ilTues from 
the Bark , with that which iffues from the Body. The in- 
ternal! heart-fap may alfo be drawn apart 5 by boring a Smaller 
auger- hole in the midle of a Greater^ and fitting it with a long 
pipe adjufted into the inner orifice. If no difference be found 
inthefe^ by xliftilbtion after fermentation , nor otherwift, ihe 
prefumption will be greater , that the difference of Heart as 
when they call Heart oi Oak ) and Sap in Timber .i§ not from the 
pdenty or fcarcity of fap , but from the feajon of felling. • 
2 . From the obfervation of the .woody Circle or prices ia the 
Branch, Arm or Body of a tree , it may be inquired 5 whether 
atfuch time when that Circle firft eocorapaif'd n^t the bark ^ 
the tree be or be not morefubje^l to corruption ^ tbar^ a;t ano- 
ther ftafon 3 when the jelly of the juyce is growji-mar^.con- 
denfed^ l am informed by a curious and intelligent perfQrti, tjiat 
the corruption of the Timber depends* not qpdn the lim^ of the 
year , and the afcent , or the plenty or fcarcity of Sap fo much , 
as upon the feafon of the Moon or Wind. And he affirms 5 
that Timber-trees fell'd, when the wind is in the AV eft, efpe- 
cially in the Old Moon , will keep them fr^e from grubs ( as 
they cair it from being rworm-ea^ on th^ contra- 
ry, that when cut down in an winde , the worm willfeize 
oa them, in what feafon of the Mjpon foever it be feil'd : To^ 
prevent which corruption, 'ti^ advifed, that fuch timber fliould 
be forthwith thrown, into water. It's J^ndeed worth inquiring y 
whether we may not afcribe-ifomthing of the dur^blenefs. 
of timber to the perfed condehfation olt the outward" integu- 
ment or coat, and fo take care, that when trees are to be 
feU'dfor timber or other durable materials, the outward coates' 
may be of folid wood, . ' 
3, Ethel' 
