055) 
till the other Dog begin to cry, and faint, and fall into Con* 
vwlfions, and at laft dye by his fide. 
Then take out both the Quills out of the Dogs Jugular 
Vein, and tye the running knot faft, and cut the Vein afun- 
der, (which you may doe without any.harmto the Doggone 
Jugular Vein being lufBcient to convey all the bloud from 
the Head and upper parts, by reafon of a large Anntomo/is^ 
whereby both the Jugular Veins meet about the Larinx, ) 
This done, fow up the skin and difmifs him, and the Bog will 
leap from the Table and fliake himfelf and run away, as if no- 
thing ailed him*. 
And this I have tryed feveral times, before feveralin the 
Univerfities^ bur never yet upon more than one Dog at a time, 
for want of leifure, and convenient fupplyesof feveral Dogs 
at once. But when [ return^ I doubt not but to give you a 
fuller account, not only by bleeding feveral Dogs into one, 
but feveral other creatures into one another, as you did pro- 
pofe tome, before you left Oxford-^ which will be very eafie 
to perform 5 and will afford many pleafant and perhaps not 
unufeful Experiments. 
But becaufe there are many Circumftances neceflary to be 
cbferv*d in the performing of this Experiment, and that you 
may better dircftany one to doe ir, without any danger of 
killing the other Dog, that is to receive the others bloud, I 
will mention two or three. 
f?r/?, that you faften the Dogs at fuch a convenient di* 
ftance, that the Vein nor Artery benoc ftretched ; for then, 
being contradted, they will not admit or convey fo much 
bloud. 
Secendly, that you conftantly obferve the Palfe beyond the 
Quin in the Dogs Jugular Vein ( whieh it acquires from the 
impulfe of the Arterious h\o\xA :^ For if that tails, then 'tis a 
figa the Qail is ftopt by fome congealed bloud. fo that you 
muft draw out the Arterial Qaill from the other, and with a 
Probe open the pafifage again in both of them, that the bloud 
may have its free courfe again. For, this mult be expciJled, 
when the Dog, that bleeds into the other, hath loft much 
bloud, his heart will beat very faintly, and then the impulfe 
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