PYAEMIA IN A FOAL. 567 
the branches of a blood-vessel of considerable size which 
supplied it. 
After having untwisted the ligature and spread out the 
mesentery, I was enabled to see the original situation of the 
tumour, and to trace the portion of membrane to which it 
was attached. This I found to be about twelve inches long, 
and had become so much twisted as to form a cord, in the 
centre of which I found an artery that increased its firm¬ 
ness. I can conceive that this unfortunate affair may have 
taken place somewhat in the following way. A fatty tumour, 
about the size of a w T alnut, had formed in the mesentery, 
between the two layers of peritoneum—which is not uncom¬ 
mon—and distant about three inches from the detached 
border of the intestine. This tumour became pedunculated, 
and, from some unaccountable movements of the viscera, 
dragged upon its point of attachment with sufficient force to 
tear the mesentery, taking with it its blood-vessel and a part 
of the membrane. The rent speedily increased, thus pro¬ 
ducing a considerable opening, through which a portion of 
the jejunum passed. The pendulous tumour, with its long 
pedicle, by some mysterious means passed round both the 
ilium and the jejunum, and then around itself, forming a com¬ 
plete knot, which could not slip on account of the tumour at 
its end; and as the intestines at this point gradually became 
enlarged, the ligature, as we can imagine it would do, became 
much tighter, thus effectually strangulating the portions of 
intestine above alluded to. Such is the only explanation I 
can give of the formation of the tumour, ligature, and the 
effects. 
I am, Sir, your obedient servant, 
George Yarnell, 
Assistant Professor. 
PYAEMIA IN A FOAL. 
By W. Heaps, M.B.C.V.S., Preston. 
On the 9th of May, 186l, I was requested by Mr. Sutton, 
of Moor Hall, to attend a very valuable horse-foal, which he 
said had, by some means or other, suddenly fallen lame. Upon 
my arrival I found the near hind leg of the animal slightly 
affected with lameness, which I was inclined to attribute to 
rheumatism, and prescribed accordingly. 
