SUCCESSFUL PARACENTESIS THORACIS IN A HORSE. 323 
pearing, which betokened a speedy dissolution. The operation 
was again performed on the same side, in the same intercostal 
space as the first, but with considerable difficulty. Three quarts 
were drained off, but the stream was much impeded, either by 
adhesions of the pleurae, or by clots of fibrine plugging up the 
mouth of the canula. The patient, however, experienced much 
relief, and rallied again. Continue the same medicine. 
25th . — He now appears much better, and about the same as 
after the previous operations. Continue treatment. 
March 3 d . — He has again had a relapse. The symptoms 
presented themselves as before, but with increased aggravation. 
He was exceedingly weak, and lay down for the first time since 
the commencement of his illness. This appeared to aggravate 
the symptoms, and to be so threatening to life, that he could 
only lie for a few moments at a time. He then rose in a stag- 
gering manner, was constantly looking round at his flanks, as if 
pointing out the seat of pain and imploring relief. The opera- 
tion was performed in the intercostal space anterior to the latter 
puncture on the right side. No sooner was the trochar withdrawn 
from the canula, than it was followed by a copious flow of a turbid 
and whey-like fluid, seemingly a mixture of pus and serum, 
which had a very offensive smell. It was allowed to flow as 
long as [t would without the admission of air through the canula 
into the thorax. Eight quarts were taken away ; after which 
the horse experienced more relief than from any previous opera- 
tion. Treatment continued. 
5th . — He eats better, and has lain down two or three times. 
Treatment as before. 
7t,h . — He improves gradually ; the appetite increases; he lies 
down frequently without any seeming disturbance. Treatment 
continued. 
12 th . — He eats and rests well. Treatment discontinued. 
April 22 d . — He is doing well. 
[We had the pleasure of seeing Mr. Lambert on the 19th ult., 
and the horse was then at work, and apparently well. — Y.] 
