99 
J. C. MYERS, SR. 
haunches. The borborygraus was inaudible sometimes for hours, 
then again would set in with encouraging alacrity, though only 
temporarily. The voiding of feces and urine ceased at 1 P.M. She 
is but slightly tympanitic. The peripoheric temperature and sen¬ 
sibility sunk in a hopeless manner. 
October 3—This morning the mare is reported better; an ex¬ 
amination however, indicates the reverse. I advised the owner to 
take her to the woods, wherefrom he returned in a short time 
with the information that she died soon after reaching the place. 
During the animal’s illness, she, at intervals, showed lameness of 
the left fore-leg. 
Autopsy made two hours after death. The cadaver was slightly 
tympanitic, stomach healthy, small intestines appeared anaemic; 
the ccecum and colon somewhat engorged, contents of the whole 
alimentary tract of a semi-fluid consistence, the remainder of the 
abdominal organs apparently healthy. Not satisfied with the 
result, I continued my researches, and found the great mesenteric 
artery obliterated by coagulum, consisting of a fibrinous mass 
about two inches in diameter, and more than twice as long, con¬ 
taining in the centre two worms, of the thickness of a com¬ 
mon sewing needle. One of them was a little longer and alive, 
with red head and tail, and the rest of the body almost translu- 
scent. This species of parasites is termed by Prof. Bollinger 
sclerostomum equinum. In my opinion it is the same entozoone 
described by Prof. Zurn as the larva of strongylus armatus. 
Considering myself amply rewarded, I neglected to look for 
elongations or branches of this thrombus, which might have fur 
nislied a clue to an explanation as to the cause for the periodic 
lameness in the left fore-leg, with which she was affected during 
her illness. “ Was it the result of the obliteration of said ves¬ 
sel ?” If so, “ how is suspension of circulation in the great mes¬ 
enteric artery liable to impede locomotion in the anterior ex¬ 
tremities ?” 
The dragging of the hind limbs which she exhibited for a few 
minutes, as mentioned above, goes to show that the embolism had 
a more extensive range than I detected. 
Cincinnati, O. J. C. Meyer, Sr., V. S. 
