562 
R. H. HARRISON. 
particular note of, so as to be able to detect any change in voice. 
The next morning he was somewhat exhausted, having gnawed 
all the woodwork of his cage, and scratched the wire netting un¬ 
til his paws were bleeding ; when irritated, was more violent than 
before, and showed a characteristic change in his voice. About 
noon he was purging very freely, and, at the slightest irritation, 
he would have a paroxysm of rage. Other dogs placed before 
him would only add fury to his madness, while they themselves 
would shrink away terrified. Towards evening he became ex¬ 
hausted and kept quiet during the night; the next morning he 
was paralyzed, and died at eight o’clock in the evening. 
On post-mortem examination, the brain and superior part of the 
spinal cord were inflamed; the brain substance was softened; the 
conjunctiva was highly injected, as well as the vessels of the cor¬ 
nea ; the fauces and buccal cavity were of a normal color, al¬ 
though the tongue was blacker than usual; the lungs were en¬ 
gorged, and the trachea was filled with frothy mucus ; the heart 
■was flabby, and contained semi-fluid blood, blackish in color; the 
stomach was distended and impacted with straw, bits of wood, 
carpet tacks, pieces of string and buttons—altogether they weighed 
four ounces; the mucous lining was erroded and inflamed; the 
liver and spleen were both enlarged and engorged ; the intestines 
contained fluid faeces mixed with straw and wood ; the kidneys 
were slightly darker than normal; the bladder, as in the other 
cases, was closely retracted. 
RUPTURE OF THE BLADDER IN A MASTIFF. 
A large English mastiff was brought to us for autopsy. The 
history of the case is quite interesting, and probably gives a cor¬ 
rect idea of the cause of the lesion. The dog had been brought 
from the country to cover a bitch, but when he arrived it was 
found that she was not yet in desire, so he was withheld from 
her. Beiiig chained up, he became very uneasy, and spent the 
day in trying to break loose. The next morning he was found 
free, having broken his chain during the night, and had evidently 
