. General Diseases. 363 
slightly, especially on the fore-legs. The dog now moved 
with a reeling, snatching gait ; the latter was particularly 
observable in the hind-legs. The back was also arched. 
When lying down or resting, the head had a tremulous, 
but not persistent, motion ; the limbs, however, were con- 
tinually twitching. I inserted a seton at the back of the 
ears. The same afternoon, before medicinal treatment 
was commenced, the animal died. 
I made a post-mortem examination for the purpose of 
ascertaining the condition of the heart, as the case being 
of long standing, and complicated with rheumatism, I 
expected to find cardiac mischief. On making a section 
through the right ventricle, and exposing the tricuspid 
FIG. 33. 
HEART OF DOG, LEFT VENTRICLE OPEN. I. MITRAL VALVE, 
INFLAMED. 2. ANTE-MORTEM FIBRINOUS CLOT. 
valve, I found the latter thickened and rough, beyond 
which there was nothing abnormal to be seen; but an 
examination of the left ventricle revealed the presence of 
an ante-mortem clot seven-eighths of an inch in length, 
wedge-shaped, tapering to a point. It was the sixteenth 
of an inch thick, white in colour, and fibrous, having on 
its upper surface a dark, recent blood-clot. This anze- 
mortem clot was immediately below and partly attached 
24 
