ig2 Sir Everard Home's additions to 
my recollection a preparation I had made in the year 1788, 
in which a small pedicle of coagulable lymph adhered to 
the surface of a portion of intestine, and had become vascular 
in less than twenty-nine hours, since the person died in that 
period after the operation for the strangulated hernia, and the 
intestine, when returned, had the natural polish on its surface. 
I had succeeded in injecting the arteries leading to it. An 
account of this case is published in the Appendix to my work 
upon Ulcers, and a drawing from the preparation is engraved 
in Mr. Hunter’s work upon the Blood, Inflammation, and 
Gun-shot Wounds, but from not being magnified, the parts 
are indistinctly seen. 
I requested Mr. Bauer to examine this preparation, which 
is preserved in the Hunterian Collection of Morbid Ana- 
tomy, and to make a magnified drawing of it upon nearly 
the same scale as that of the coagulum of blood, to show 
the difference, if there is any, between the appearance of 
the channels formed in exuded coagulable lymph, and extra- 
vasated blood. He has done so; and they correspond in the 
most essential particular, which is that the canal in the coa- 
gulum is larger in diameter than the artery by which it is 
supplied with blood. His drawing is annexed. Plate XIII. 
By this means I have been enabled to present to the Societv 
the appearance these channels put on, both in coagula of blood 
extravasated in the cavities of living animal bodies, and in 
exudations of coagulable lymph, at nearly the shortest possi- 
ble periods in which they can be formed. 
There is a preparation in the Hunterian Collection , of a 
coagulum of blood lying upon the testicle, of considerable 
size, which w ; as produced by wounding an artery in tapping 
