157 
INTROSUSCEPTION OF THE CAECUM, &c. 
any thing more than a mass of blood, and seemed in one place as 
if it had been grasped by the mouth of the colon, and thus strangu- 
lated. This mass of blood (two inches thick) seemed to be thrown 
out between the muscular and mucous coats, as it was held in 
by a level surface of the latter. The small portion of the caecum 
that lay in the caecum caput coli, and that could not be everted, 
was in a great measure healthy. That part of the colon that con- 
tained the everted caecum, and also a yard or more of it, was, on 
its mucous coat in particular, and throughout its other coats, in 
a high state of inflammation, and almost of congestion. 
The caecum caput coli and colon contained, I should think, 
4000 worms, different to any I had ever met with before. They 
were of a whitish colour, and none of them above an inch and a 
half or two inches long, and some did not exceed half an inch in 
length, one quarter of an inch wide, flat, and about the thick- 
ness of a wafer ; each surface and edge was covered with trans- 
verse lines, similar to the laminae of the foot, but closer together. 
One end was quite square, so much so as to lead one to imagine 
it had been cut off : the other was rounded off, and terminated 
with a bulbous projection the size of a pin’s head, and was, I 
fancy, the mouth. Some three or four were found in the small 
intestines, a few yards from the cascum. The mucous membrane 
on which they lay was covered with innumerable white specks 
the size of a pin’s head, and which felt a little elevated above the 
surface, and probably were produced by the worms, as they 
seemed to correspond in magnitude with the tubercular ends of 
the worms. 
Remarks . — In the second vol. of The Veterinarian, page 
252, will be found recorded, by Mr. Hales, of Oswestry, a similar 
case, and. I think that and the present one are the only ones to 
be found in English journals or works. In the former case the 
horse lived four days, but in mine only ten hours. I am inclined 
to attribute this attack to the cold water he drank at supper 
time. Whether the worms had produced a susceptibility and 
irritability of the parts I cannot say, but I am induced to believe 
that they may have had such an effect, as I found both the colon 
and the caecum, that were diseased, studded over with small 
marks, as if produced by the attachment of the worms. 
I often think that we are not so cautious, in a great many in- 
stances, as we ought to be in taking the “ chili” off the water 
that is given to horses in a state of domestication, as I am sure 
I have seen many cases where spasm and ultimately death have 
been produced from such a cause. I have been repeatedly 
called up towards five or six o’clock in the morning, to attend 
horses that have been ill with spasm or enteritis, which I have 
