(2I2S) 
bleed by the Fire, from the half onely of thofe Circle^, 
which lay under the bark. 
lOv Maple and Willow^ples, fpHt in two and planed 
would not (hew any moifture on the planed fidesjbut at the 
ends only* 
1 1, A Pole of iTjjf did of it felf exudate and fliew a li» 
quid and yellowifli rofin from the bark and near the pith 5 
but when brought to the Fire4ide,it bled a dilure^thin and 
colour-lefs &ap from the iotermediat wood Circles. 
12. A Volt oi Willow ("for Example J bent into a bow 
will oufe its Sap freely^ as in bleeding either fpontaDeoufly 
or by the Fire. 
ExtraS of a Letter ^ Written to the Tuhliperby Francis Wil- 
loughby E/^f^j from his Houfeat Middleton in Warwick* 
(hire March i6y\. relating to fame particulars above 
mention d in Ly fterV Communications o/FeU 15.1677, 
SIRj My bufinefs and want of time to profecute Experi- 
ments, I hope will plead my excufe for not anfwering 
yours ofFeK 18. fooner* Since that^ we have review'd our 
old notesj and made fome few Experlnieorsjand finde^ that 
Branches oi Willow^ Birch^ znd Sycamme, cut offand held 
perpendicularly,, will hhtd without tipping j.2ud that-the 
cuting off of their tops does not feofibiy promote., the bleer 
ding. We have not yet made trial in. lyapk.and Wal^m^ 
the weather having been fuchAbat thofe Trees have not run 
freely fince the receipt ofy.our Letter. We doubt not of Mr« 
i^7?er*s diligence and veracity 5 and wonder^ our Experi- 
ments fhould differ** The Tri- 
als we have made this year^con.^ ^ ' tills difference rcmo^ 
^ , - ^ ^ , ^"ed below 5 by W^t, Lifier Eim-, 
hrm thofe we commuoicated to {dL 
you formerly 3 viz^ The Sjca- 
More bleeds upon the firft confiderabk Froifljafter the Leaf 
is fallen, as it did plentifully the i 6th of November i 
And both thatj^^ifc^/ zndMapiehlQ^d all Winter long afcer 
frofts, when, the weather relents, and theSun ftiines out 5 
hut Walnut and Maple begin not fo fooo as the Sycamore, 
The Birch will not bleed till towards the Spri,ng*This year 
it began fomething fooner shao ordinary about the begin= 
umgoi Fehrmrj, 
We 
