92 DADD'S VETERINARY MEDICINE AND SURGERY 
watched, in case the spasm might return. In the middle of 6 
night I was again called, in haste; and this time the breathing 
seemed, if possible, worse than before, and it was evident that, if 
no relief were afforded, the animal must soon be suffocated. I 
accordingly, with some difficulty, owing to his struggles, per- 
formed tracheotomy. ‘The relief was instantaneous, and he waa 
soon on his legs, and anxious to feed. From this time the trach- 
eotomy tube was kept in his throat for a week, when, considering 
that the glottis might have resumed its normal functions, [ placed 
a cork in the orifice of the tube and sent him to work, as an 
experiment, ordering the cork to be removed if any symptom 
of suffocation should come on. We, however, found that the 
slightest effort at exertion brought on a fit of bad breathing, and 
it became evident that he would not work without the tube. 
The horse was accordingly sent to his regular work with the tube 
.in his trachea, and, for three or four months, he did his accus- 
tomed labor with it in. At the end of that time, however, by 
an accident, the tube fell out, when he was some miles from 
home, and the horse coming home tolerably well without it, the 
horse-keeper neglected to inform me of it for a day or two, and 
when I saw my patient, the aperture in the muscles of the neck 
had closed. As the horse now seemed to work well without the 
tracheotomy tube, it was not reinserted, and from that time to 
this (more than two years) he had not another attack.” 
Should a case of this kind occur, and the consulted party have 
no tube at hand, he must pass a ligature through each side of 
the orifice, including a portion of skin and muscles. Each liga- 
ture is then to be passed over opposite sides of the neck, and tied 
at the upper part, just tight enough to keep the lips of the 
wound apart. In this way air is admitted into the windpipe, 
and thus the animal is out of danger. 
LaRYNGITIS (SUPPURATIVE AND INFLAMMATORY). 
Laryngitis signifies inflammation of the lining membrane of 
the larynx. On applying the ear to the region of the throat, the 
locality of the affection is very evident, from the fact that no such 
embarrassed sound can be elicited in the lower part of the wind- 
pipe. Hence it must be inferred that the disease is located ia 
the upper, or superior, passage of respiration 
