PLEURO-PNEUMONIA. 
605 
months before. Finding the cyst of unusual thickness, I 
made a large enough puncture at the most dependent part to 
admit my finger, and after evacuating fourteen ounces of 
sero-sanguineous fluid, besides some inspissated pus having 
the appearance of millet-seed and almost its toughness, I 
introduced a pledget of tow dressed with Ung. Resinse. 
Examined the next day, the dog was found to have removed 
the dressing, and the wound had sealed up and refilled with 
the same fluid matter. Having reopened it, and passed my 
finger all round the inside of the cyst, I determined on dis¬ 
secting out what appeared to me impossible to slough out, 
and I think my decision was correct, for upon examination 
I found that both jugular veins were in immediate contact 
with it, and both thyroids attached to it; these I dissected 
away, and with much care separated the tumour from the 
veins without pricking them, the dog meanwhile struggling 
and plunging. 
At the deepest seated portion, and attached to the sterno- 
thyro-hyoideus muscle, were two other sacs, about the size 
of hazel-nuts, and containing a gelatinous fluid; these also 
I removed, and, together with the larger sac, weighed over 
two ounces. 
The subject of this operation is making a rapid recovery, 
never having lost his appetite or his desire to escape from 
my kennels. 
Pathological Contributions. 
CATTLE PLAGUE. 
No further reports have been received relative to cattle 
plague in Russia since the issue of our Journal of last 
month; but serious outbreaks of Siberian plague have oc¬ 
curred among cattle in several districts of the Province of 
St. Petersburg, as well as in the District of Yiborg and other- 
parts of the Grand Duchy of Finland. 
Cattle plague has appeared at Largaza in Turkey. 
PLEURO-PNEUMONIA. 
This disease continues to be reported from different parts 
of the United States. Recently an outbreak occurred in the 
