TOG PARTIAL OCCLUSION OF THE TRACHEA IN AN ENTIRE HORSE. 
iEther. Cklor., ^ss ; 
Antim. Tart., 3j ; 
Ext. Belladon., 5ij ; 
01. Lini., Oss. 
and applied an active blister to the throat, and region of 
the trachea. 
The next day my friend Mr. T. Coleman, M.R.C.V.S., saw 
the animal with me, and concurred in the treatment, but took 
a more favorable view of the case than myself. He also gave 
the owner some encouragement to hope for a favorable ter- 
mination. The paroxysms now occurred at shorter intervals, 
and were of longer duration, but even at this time when they 
were over, he breathed tranquilly, ate heartily, and appeared 
comparatively well. On Saturday evening, December 11th, 
he was again attacked, and died before I could reach the 
place. The post-mortem examination showed clearly that 
the case was beyond surgical aid, and that death was the 
result of asphyxia. 
[The specimen sent us consisted mainly of the cervical 
portion of the trachea, the caliber of which, for about one 
half of the length of the tube, was greatly diminished by 
submucous deposit. An examination of the deposit showed 
that it was composed of well organized lymph, which had 
doubtless existed for many weeks. The mucous membrane 
itself was much thickened, but did not present any considera- 
ble amount of vascularity. The deposit was fully an inch 
thick in some parts, but in others not more than a quarter 
of an inch, from which thickness it diminished at each ex- 
tremity so as to be ultimately undistinguishable from the 
mucous membrane. On section it was found that the inter- 
cartilaginous tissue was infiltrated with the deposit, and also 
that the perichondrium was so much congested as to surround 
each cut end of the cartilages with a purple coloured ring, 
which contrasted remarkably with their dense white appear- 
ance. Otherwise there were no indications of recent conges- 
tion. The deposit had taken place upon the anterior part of 
the trachea, leaving the thin edges of the cartilages in their 
normal condition.] 
