BOVINE DIPHTHERIA. 
465 
rapidly. This condition continued for six days, and she died in 
severe paroxysms. This animal was not housed with the rest of 
the herd, but there was only one attendant for all. The atten¬ 
tion given this animal was smoking the head, washing away the 
discharges, and medicating her with such remedies as the owner 
and attendant thought desirable. 
Seven days after No. i died, another was noticed to be sick, 
and the first thing to attract attention was a swelling of the eye¬ 
lids with a copious discharge of tears. This was soon followed 
by a discharge from the nostrils and ptyalism, which was accom¬ 
panied with a frequent attempt to swallow. Associated with 
these symptoms was trembling, arched back, tenesmus, soon to 
be followed by nervous hyperasthesia, which induced the owner 
to have her killed at the third day of her sickness. 
August 12th the third cow was taken sick and presented the 
same symptoms as the others, but not in so acute a form as the 
second. I was called to see this animal after she had been sick 
for three weeks. I found her breathing short and quick. Her 
head was pressed against the wall, the conjunctivae were swollen, 
the pupils' dilated, and a copious discharge flowing from the 
lachrymal ducts. The discharge from the nostrils was thick, 
while that from the mouth was frothy. Her appetite was fair, 
and the functions of the body were normal, with the exception 
of the secretion of the milk, which was completely stopped. It 
being impossible to lead her any distance she was killed by 
bleeding, and the post-mortem revealed a congestion of the 
brain. The rest of the viscera were apparently normal, but the 
throat was pot examined for reasons well known to some of this 
audience. 
Nothing more went amiss with the cows until the following 
November, when on the twenty-fifth a fourth cow presented 
symptoms identical to the other three, with the exception of the 
faeces, which were black and covered with mucous. This cow 
died the second of December, 1893. 
On February 25th, 1894, the fifth cow was taken sick with 
the same symptoms as the other four. This is the animal to 
