CASES l^F CROUPAL ANGINA. 
625 
in width, and at least a tine and a half in thickness ; one 
side of it was smooth, and the other rough, and thick set with 
little bloody points. It had been ejected from the mouth of the 
mare after a violent fit of coughing that had taken place about 
two o’clock, and which had been so exhausting that she was 
covered with perspimtion. 
At six o’clock in the morning another fit commenced, and the 
animal ejected from the nostrils, in our presence, a new portion 
of false membrane. 
At noon, a third portion was found in the manger. From this 
moment the symptoms diminished insensibly; the anxious coun¬ 
tenance disappeared; the respiration became freer; and we 
heard no more whistling in the larynx, or gurgling along the 
trachea: the cough was comparatively seldom heard; there ap¬ 
peared from the nostrils a discharge of grumous mucus, but 
whiter than on the first day; in fine, the animal was much bet¬ 
ter; she searched the manger for something to eat, but w’e allowed 
her only a few swallows of white water with honey. 
On the following days she ejected some more pieces of false 
membrane; she became evidently better; she regained her appe¬ 
tite and her ordinary spirits; but it was not until the 10th of 
INIay that we could regard her as cured : and even then her 
flanks heaved like those of a thick-winded horse ; but this by 
degrees disappeared. 
I now return to the state of the horse. 
24^^.—I thought that the gurgling, which before was lieard 
along the whole extent of the trachea, was more sonorous at the 
inferior part, where it enters the chest. The same treatment as 
on the 23d. 
2oth .—At five o’clock in the morning the symptoms retained 
all their intensity. 
At two o’clock in the afternoon the difficulty of breathing was 
considerable. The animal, from time to time, suddenly held his 
head low down, and raised it and depressed it again, endeavour¬ 
ing to expel something from the throat; a violent convulsive 
cough then came on, which threatened immediate suffocation; 
the body was covered with perspiration, and the beatings of the 
Hank were increased. The pulse was small and hard. 
After having seriously reflected on this series of alarming 
symptoms, and that there was reason to fear that the animal 
would be suffocated, we decided on practising the operation of 
tracheotomy. 
It had scarcely been performed, when the distress of the animal 
disappeared. We no longer heard the laryngo-tracheal whistling, 
nor the gurgling which before extended along the trachea ; and 
