CONTAGIOUS PLEURO-PNEUMONIA. 
13 
At the time of my visit the third animal was said to becon- 
valescent and was not examined. The fourth, which the owner 
said had never been sick, was examined and found to be suffering 
from contagious pleuro-pneumonia. The symptoms were not 
marked ; the temperature 102£° ; the respiration somewhat hurried 
percussion dullness in the lower third of the right lung, covering 
an area about equal to that of the open hand, with complete loss 
of respiratory murmur in this part. In every other respect this 
animal appeared to be perfectly healthy. Such an animal may be 
considered as one of the most dangerous class of cases, as the 
symptoms being hardly sufficient to attract attention were in dan¬ 
ger of being overlooked, especially by non-professional men. 
The next animal examined was the chronic case (before 
referred to) of over two years’ standing, which was apparently in 
a perfectly healthy condition. The temperature was normal ; 
feeding and milking freelyin fact, the only evidence of disease 
was a slight cough, with varying degrees of percussion dullness 
over the left lung, the pitch of the note seeming to change with 
every new area of the organ examined. This was accompanied 
by a respiratory murmur as variable in character as was the per. 
cussion note ; in some places coarse bronchial breathing, in others 
murmurs of a transmitted character were heard, while in others 
an exaggerated vesicular breathing was detected. 
The diagnosis was made in this case of imperfect resolution, 
in which islands of the pulmonary exudate had undergone caseous 
change, while the intervening tissue had returned to normal, giv¬ 
ing the lesions found on percussion nd oscultation. It was con¬ 
sidered that this animal had been the nidus of infection of this 
farm, and the cause of the various outbreaks of the disease in this 
locality. 
On reporting these facts to the State Agricultural Department, 
their veterinary surgeon was sent, who destroyed the animal. I 
was not aware that this had taken place, until two or three weeks 
after. I was then told that the case was one of tuburculosis, and 
not pleuro-pneumonia, which I consider to be a mistake in diag¬ 
nosis, the chronic degenerated lesions of the one being mistaken 
for those of the other. 
[To be continued .] 
