(20^9) 
Mt, Wray hath affurcd me, that thofe of tVdrwkI{;fi)ireib\t3, the 
1 6th of N£we/5«Ser laft paft copioufly 5 and fince tht Wdmt^ 
/reealfo. And ib much formatter of fa ft. 
To what caufe.vve may truly refer this Anomalous Bleeds 
ing, is not eafie to fay. Formy part, /amnotaptto think^that 
there is fuch a fudden and extemporary Afcent of Sap^ at fuch 
time as thefe Trees are moft difpos'd to bleed 5 but rather, 
that the Sap, in alt parts of the Tree j is fome ways notably al* 
ter'd in its temper and confiftenee : And this Bleeding by 
ftrefi of weather may in thefe Trees probably be looked upon 
iasa violence done to their natures from an unkind Climate 3 
confidering the Walnut md Sycamore as ftrangers, and not na- 
tives of England. ^Tis indeed true 5 there are many forts of 
EftglfJhVhntSy which will bleed in Winter, but note alfo, that 
fuch Plants never refule to do foat apy time of the year 5 no 
tnore than a Man , who may bleed a vein when he pleafeth» 
But let the Hypothefis be what it willj I am perfwaded 5 we 
fliallhave but dark and imperfeft notions of the motion of the 
Juyces in Vegetables, until their true Texture be better diC- 
cover'd. To conclude this fubjeftjl now put thefe two 
r/e/5 I. Whether the Juyce of Trees^whiPft alive and vegetCj 
can properly be faid, at any time of the year^ to defceod^ or 
tobe wanting in any part, or not to be therein in a much like 
quantity } 2= What condition the Soil is ofj where fuch Trees 
are plantedjthat (hall either bleed or refule to do fo 5 whether 
Sandy, as that of Notttngham :^ or a wet Clay^as that ofthetwo 
Trees, I have obferv'd here at r<?r4> 
An ExtraB of another I etter written by the fameCenikmanyMt^ 
Wrayj to the VnbUJher, Febr. 8fb. 167% Containing fame 
Experiments about the Bleeding ef the Sycamore 3 and other 
trees'^ as alfi^ a consider abU Note afPlmy about theMulheK- 
- ry- Tree. 
Concerning the Bleeding of the Sycamore^ let me acquaint 
you with the following Experiment, The firft intent k 
froze 5 the Wind at North i^ nh^ Froft and Wind cominTaed 
(fome little Snow and rain failing) the'id3 3d3 4th, sth^ 6tb=, 
until the 7th in the mornings when the Wind came about to 
