5°° 
REPORTS OF CASES. 
donna and antim et pot-tartra. He thinks the latter'gave slight 
relief for a short time. 
The fifth case manifested symptoms similar to the former one 
and she died at 12:15 P. M. 
The symptoms of all were exactly alike—discharge of serum 
and white froth from the nose and mouth, and difficult breathing. 
Dr. Galbraith made a post-mortem examinations of two, and 
found the stomach, liver and intestines perfectly normal. The lungs 
were greatly distended with air, and, on cutting into them, large 
quantities of froth exuded. There was no evidence of active pul¬ 
monary congestion; no discoloration of the sputum post-mortem. 
I made a post-mortem examination of the bay mare, the last 
one that died, twenty-two hours after death. I found all the 
organs as described by Dr. Galbraith in his cases, but, on ex¬ 
posing the larynx, we discovered an extraordinary intense con¬ 
gestion of the muscular tissue of that organ, both the intrinsic 
and extrinsic muscles ; also great blood extravasation into the 
cellular tissue surrounding the larynx. The mucous membrane 
of the larynx was highly congested, the discoloration extending 
into the pharynx and fauces. 
Diagnosis .—Enzootic spasm of the larynx. What caused it? 
Mr. Patrick is a large landowner and keeps all of his livestock in 
the very best condition. His stables are situated on high ground, 
and all the stock obtains water from a trough near the barn, fed 
by a wind-pump from a deep well. These five animals, con¬ 
sisted of three mares with foals at their side, and one old mare 
and a two year old mare. One of the colts became slightly af¬ 
fected, but recovered. 
These animals have been in a seven acre field all summer, 
only one of which was worked during haymaking this summer. 
An oat stubble field was thrown open to them three weeks ago. 
For five weeks there has been no rain until last Saturday the 
11th rain fell to soak the ground about two inches. The tem¬ 
perature was even, from 80 to 90°, for several weeks. What is 
more plausible than to believe that the slight warm rain on a 
parched soil favored the rapid development of some fungus 
