556 
REMOVAL OF AN 
fractured portion of these rings, and introduced the usual trache- 
otomy tube, which I suffered to remain for several days. I then 
brought the external parts together, and healed the wound. The 
patient was fifteen years old. 
He is now again at work, breathes freely, and is apparently 
healthy. I am at a loss to account for the occurrence of this acci- 
dent, unless, when he was first turned out, he was forced over some 
rails by other horses that ran with him. The fractured rings would 
not destroy him, and the accident was not perceived ; but, by de- 
grees, a false membrane was thrown across the passage, and, at 
length, almost obliterated it. 
REMOVAL OF AN OSTEO-SARCOMATOUS TUMOUR 
FROM THE FOREHEAD OF A HORSE. 
By M. U. Leblanc, M. V., Paris. 
On the 25th of January, 1839, a cabriolet gelding, about ten years 
old, was brought to me, having, on the lower part of his forehead, 
an indolent tumour of the size of a large melon. It was of a hemi- 
sphero’idal form, and somewhat moveable on its inferior part. Its 
greatest diameter was about ten centimetres* above the insertion of 
its base, which commenced at six centimetres below the superior 
termination of the nasal bones, and reached three-fourths of the 
way up the forehead : it included the lateral and inferior parts of 
this region. The skin which covered it was tense, shining, and 
deprived of hair towards the summit, where were some scars of 
long standing. 
The animal was in good health and tolerable condition. 
There was a slight roaring kind of breathing through his nostril 
when he was quiet, and this increased considerably when he was 
trotted. 
It was nearly two years since this tumour had begun to appear 
about two-thirds of the way down the forehead, and it was then attri- 
buted to a contusion. It rapidly increased, and the owner attempted 
to get rid of it by discutient ointments, and by the cautery. 
During the whole of the time that the tumour remained the 
horse enjoyed good health, and was constantly employed. 
In consequence of this tumour, however, he was degraded from 
being a cavalry horse Jo drawing a hackney-coach, and, at last, he 
drew one of those vehicles known in the neighbourhood of Paris by 
the name of coucous-cuckoos. 
The animal was restricted to straw! and white- water for two days 
before the operation. On the third day I had him cast. His head 
* The French centimetre is .39371, or nearly two-fifths of an English inch. 
t The French horses eat a great deal more straw than hay. 
