INTUS-SUSCEPTION IN THE HORSE. 
564 
I must here express my regret, that Mr. Percivall, in his series 
of Elementary Lectures (vide Lecture XLIV), when enumerat- 
ing the causes of enteritis, merely observes, that “ intro-suscep- 
tion, of which I have seen one instance, may produce it* for, 
had he recorded that one instance, it might, with this, have 
thrown sufficient light upon the subject to have enabled the 
practitioner more readily to identify the disease. 
The treatment, I consider, should differ materially from either 
enteritis or colic. I should most decidedly abstain from any kind 
of purgatives or diuretics, and depend solely on venesection, 
opiates, and tobacco enemas ; as it is very evident those reme- 
dies which would produce, to the greatest extent, that inanimate 
state of the system approaching catalysis, would be the most 
likely to arrest the spasmodic action of the displaced intestine, 
and restore it to its proper situation. After having produced 
the greatest torpor of the system I was able, I should leave 
nature to struggle with the rest, feeling assured that any other 
remedies would retard rather than assist. Neither would I allow 
any food, even in its simplest form, to be introduced into the 
stomach ; for I observed, on opening that organ, that the medi- 
cine administered was nearly unaltered, and which was the only 
thing given to the animal from its first attack. 
The sketch represents the caecum longitudinally cut open, and 
the intus-susception lying within it ; a a the intus-susception ; 
b a portion of the ileum ; c the valvula coli ; n d small portions 
of the mesentery and base of the caecum ; e the apex of the 
caecum ; f f the interior of the caecum. 
* But this instance of intus-susception did not produce enteritis, as the 
above account of the post-mortem examination shews, although the villous 
coat was flushed throughout, and in the caecum quite inflamed. 
