Diseases of the Bowels. 75 
vaginated, within the portion anterior or posterior to it, what 
is termed intus-susception is established. 
The small intestines are those generally involved. 
Intus-susception usually terminates fatally ; adhesion, 
however, of the invaginated portion may take place, followed 
by suppuration and separation of that part. 
In a recent fost-mortem examination of a large mastiff 
dog I found death had resulted from stoppage and con- 
sequent inflammation, owing to constriction of the bowel 
immediately in front of an old intus-suscepted portion, in 
which adhesion was established, but the process of separation 
had not become complete. 
In a still more recent one, of a fox-hound, I found acute 
inflammation of the bowels at and anterior and posterior to 
an invaginated portion of seven inches in length, in which 
adhesion had not commenced. 
The following case was recorded by Jonathan Hutchinson, 
in 1876: 
INTUS-SUSCEPTION OF THE Temunt AND CACUM IN A Doc. 
This specimen was taken from adog about ten months 
old. The ileum and czcum had passed into the colon for 
a distance of about eight inches, until the czecum nearly 
presented at the anus. The layers were not in the least 
adherent, and it might have been reduced by traction from 
within the abdomen with great ease. Although the im- 
‘pacted parts were much congested, there was no tendency 
to gangrene, nor any trace of inflammatory effusion any- 
‘where. It was chiefly in reference to its bearing on the 
feasibility of operations in these cases that the specimen 
was of interest. No treatment had been adopted during 
the life of the animal, because no diagnosis had been made. 
‘The dog was in perfect health until about eight days before 
‘his death, when, without any cause perceptible, he began to 
show signs of discomfort, and refused to hunt. He was 
‘never observed to be sick, nor did he pass blood. He took 
little or no food, and his belly became much retracted. For 
