Diseases of the Nervous System. 283 
recently-éxuded fibrin, which also was spread over the 
surface of the hemisphere. This portion of the brain was 
somewhat diminished in bulk, but no morbid appearances, 
were observed in its structure; in the centre of the left 
corpus striatum a recent hemorrhagic clot was found. 
“Under the microscope the exudation was found to 
consist of ordinary inflammatory products, numerous pus 
corpuscles, large exudation corpuscles, fat granules, and 
fine white fibres.” 
DEMENTIA. 
In April, 1883, a remarkable case of canine dementia 
came under the author’s notice, which originated in the 
first sexual connection. The subject was a young well- 
bred Scotch, colley dog, belonging to Mr. Charnock, of 
Wolverhampton, which the owner desired to mate with a 
maiden female of the same breed. The following day, 
after being together, cerebral disturbance was noticed in 
the dog, indicated by much the same symptoms as when 
the brain is involved in chorea. The pupils of the eyes 
were remarkably contracted. Ultimately the patient be- 
came perfectly blind, deaf, and dumb, and possessed very 
little feeling. The evacuations intestinal and urinal were 
involuntary. From a quick, intelligent, and lively dog, he 
speedily became a poor demented creature. 
Almost immediately symptoms of cerebral mischief were 
observed, his method of locomotion altered, and he per- 
sisted in a slow shambling walk, with the back arched and 
the head down, round and round the loose box which he 
inhabited, in much the same manner as a tiger or hyzna, 
‘to the latter of which he was frequently likened by specta- 
tors. This he wouid do for hours at, a stretch, sometimes 
to the right, sometimes to the left, but always never swerv- 
ing from the beaten track, and always keeping close to 
I 
