AMERICAN VETERINARY COLLEGE. 
429 
In cases where the clot only remains for a short space of time, 
and is then broken lip, the lameness will pass away without be¬ 
traying the real cause to have been a defect of nutrition of such 
parts by the plugging up of blood vessels. If only a collateral 
vessel has been obliterated, we shall meet with a wasting of the 
muscles supplied by the implicated vessels. But where a main 
artery, as the humeral or the iliac, is affected, we should discover 
a coldness of the extremities involved, with partial, or, more 
probably, total paralysis of the limbs. A case occurred here, at 
the college, which illustrates this. On the evening of November 
1st, about 8 p. m., a call came to see a horse which had just 
dropped down on the street. The owner, who was driving the 
animal at the time, stated he had owned the horse from October 
15th, and had used him in a delivery wagon daily till the 23d. 
On that day, after making his trip and returning, he noticed that 
the horse commenced to tremble, break out in a sweat in patches, 
and acted as if in great pain. Being near home, he unhitched 
him, and with some difficulty got him to the stable. He was 
there allowed to rest for three days, when he appeared all right 
again, and he was put to his work again daily, till the next at¬ 
tack, on November 1st. 
Hr. Critcherson, house surgeon, being on outside duty, 
answered the above call, and fouud the horse down in the street, 
as before stated. lie made a short examination, and found that 
the horse, when made to get up, did so with difficulty, wheeling 
around and dropping down again. He advised the owner to get 
the ambulance and bring him to the college hospital, wdiere a 
more thorough examination could be made as to the nature of 
the disease, and where he could be properly treated, if necessary. 
The owner consented, and he arrived at the hospital at 10:30 p.m. 
He stood up in the ambulance on the way over, but had exten¬ 
sive knuckling of the hind fetlocks. He was not able to back 
out, and fell down in attempting to do so. He was then secured 
on the roller platform, and drawn back to a large box stall, and 
when released he made a struggle and got on his feet again. We 
took this opportunity to put him in slings, but with no benefit, as 
he dropped down in them, and had to be released. 
