VALVULAR DISEASE OF THE HEART. 
195 
was readily detected on either side of the chest. Its beating was 
accompanied with a peculiar hollow-like sound, which the 
least excitement rendered audible several yards from the 
animal. The visible membranes were blanched upon their 
general surface, but studded here and there with petechiae 
varying in size from a pin 5 s head to an oat-grain. The ex- 
tremities were cold, and slight oedema of them was present. 
There is no cough. Mr. H. informed me that since the 
animal has been in his possession he has continued to fall off 
in condition, although eating a good allowance of corn, and 
that up to the day before my seeing him he had lain down 
as usual. Diagnosis, diseased heart. 
25th, 10 a.m. The patient’s end is fast approaching ; the 
pulse is much increased, but hardly to be felt at maxilla ; the 
respiration is also more panting. The fore legs are arched 
backwards, and the poor animal can scarcely stand, although 
he persists in so doing. The oedema of the extremities is 
decreased. He has shown a constant desire for liquids. The 
other symptoms are about the same as yesterday. He was 
found dead at six o’clock on the following morning. At 1 1 
a. m. I made a post mortem examination. Upon removing 
the common integument, I found the muscles pallid, but 
thickly studded with petechiae, and which was especially the 
case with both the serous and mucous membranes throughout 
the body. The intestines were healthy, but slightly congested 
in places. Liver and spleen highly congested and softened 
in their structure. Kidneys enlarged and flaccid. On 
laying them open the pelvis of each was found to contain a 
quantity of thick mucus, having an appearance similar to 
pus, and which could be traced along each ureter into the 
bladder ; this organ, however, was nearly empty. On 
opening the thorax, the lungs quickly protruded, being appa- 
rently much larger than usual, but pale in colour. On 
cutting into them they immediately collapsed, expelling a 
considerable quantity of frothy mucus. There was no effu- 
sion into either the chest or the pericardial sac, the struc- 
ture of the latter was normal. The heart was of its natural 
size, but also pale and flaccid. The right auricle contained 
a large amount of coagulated blood, as did also the ventricle. 
The lining membrane of both these cavities was darker in 
colour than is usual, and two of the tricuspid valves were 
much thickened by a deposit about the size of a small nut 
upon each, which appeared to me to be an abnormal growth 
of the corpuscula Arantii ; the other valves on this side of the 
heart were healthy. 
The left auricle had much the same appearance as the right, 
