736 
A. G. ALVERSON. 
dominal cavity, which came from a large rupture of the 
stomach. Farther examination showed a mesenteric abscess 
larger than a man’s head, containing quite a quantity of 
creamy pus. The coats of both the large and small intes¬ 
tines were adherent to the surface of abscess. Here was the 
primary cause for the condition of stomach and bowels. 
No. 4. In May or June of last year went with Dr. Wil¬ 
liams, my former partner, to see the subject of following 
article. The cow had at that time been ailing for several 
months, and was found lying in the stable yard, looking 
emaciated and breathing laboriously. Was with some diffi¬ 
culty persuaded to stand. 
Poor, hide bound, enlarged in joints, and showing symp¬ 
toms which at once led to an examination of the lungs. Both 
were dull in patches, aggregating more than half the surface, 
non-resonant on percussion and devoid of crepitation. Other 
parts were as resonant as natural. 
Could get no history of contagion, but we considered the 
case must be one of tuberculosis and gave that as an opinion, 
advising destruction, which was not done for two or three 
weeks. 
In the meantime saw the cow again, and found her to be 
growing slowly worse, which we were informed she did until 
killed. 
Conducted the autopsy soon after death. On reaching 
the lungs all idea of tuberculosis was at once exploded. Sub¬ 
stance of the lungs was more like the consistency of kidney, 
lobulated, but the different parts showed great variance of 
density. Some entirely devoid of air, some containing a 
little, while other parts had been semi-active until death. 
Looked farther lor a cause of this condition and found the 
bicuspid valves of the left auriculo-ventricular opening were 
diseased. 
The rest of heart looked well enough, but the valves bore 
a honeycombed appearance, and must have been incapable of 
performing their functions. 
Was not the forcing back of the blood from the heart, 
through the pulmonary veins, the cause of the condition of 
the lungs? 
o 
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