298 
V. A. MOORE AND F. L. KILRORNE. 
larged. Kidneys firm, pale. A small quantity of thick, very 
cloudy, alkaline urine. Microscopical examination of sedi¬ 
ment showed the presence of a few granular casts. Stained 
cover-glass preparations from the pus enclosing the lung, re¬ 
vealed innumerable rabbit septicasmia bacteria. Cover-glass 
preparations from the nasal mucosa exhibited rabbit septicae¬ 
mia bacteria. 
Rabbit No. 55.—Not emaciated. The abdominal and 
thoracic organs appeared to be perfectly normal. The 
mucosa of the trachea and larynx were slightly reddened, due 
to the injection of blood vessels. Pharynx apparently normal. 
The nasal cavities contained a considerable quantity of gray¬ 
ish purulent substance. The mucosa of the nares thickened 
and whitish. Very few bacteria were found in the cover- 
glass preparations from the discharge, but in those made from 
scrapings of the mucosa there was a moderate number of oval 
polar stained bacteria. A tube of bouillon was inoculated 
from the scrapings at the base of the mucosa,, this developed 
apparently a pure culture of rabbit septicaemia bacteria. Agar 
plate cultures were made from the bouillon culture. Only 
colonies of rabbit septicaemia bacteria developed. 
The number of rabbits that was killed for examination was 
sufficient to show the cause of the nasal difficulty. The at¬ 
tenuated condition of the bacteria accounts for their long res¬ 
idence in the nasal cavities without injury to the rabbits 
other than the rhinitis. In rabbit No. 15 the left ovary and 
terminus of fallopian tube were encased in a pus sac. The 
chronic nature of the disease can be appreciated by the fact 
that several of the rabbits (Nos. 11, 12, 15, 19,20 and 29) were 
known to have suffered from the rhinitis from ten to twenty 
days prior to their death. These were first observed to be 
affected and were removed from the breeding-pens together 
with about ten others May 8th. Since that time a few other 
rabbits have been affected and removed. 
In the latter part of July the surviving rabbits were killed 
for other purposes. They exhibited no lesions excepting a 
thickening of the nasal mucosa. About one-half of the rabbits 
that were affected with the rhinitis in the breeding-pens died. 
The cause of death was due to pleuritis, pneumonia or perito- 
