570 
EXTRACTS FROM EXCHANGES. 
day, by collapse.” The prognosis of the disease is always seri¬ 
ous ; the author has observed a mortality of nearly 50 per cent. 
Hygienic measures form the principal basis of the treatment. 
Tracheotomy Tube in the Trachea—Second Opera¬ 
tion. —The danger of the possibility of a tube falling into the 
trachea after the operation of tracheotomy is one which has 
necessitated greater care and solidity in the making of these 
tubes, and even with those accidents will occur by the breaking 
of the instrument, and separation of the cervical plate from the 
tracheal cannla, which drops them, more or less, down in the 
cartilaginous canal. In the Revue Veterinaire Mr. Babeau re¬ 
lates a similar case, where an animal operated upon and almost 
convalescent, broke his tube and “ swallowed ” it. Failing to 
have it coughed out by pressure on the upper part of the 
trachea, or to take hold of it with forceps, a second tracheotomy 
imposed itself, as the animal was rapidly choking. It was 
performed, and the tube removed. A great deal of haemorrhage 
accompanied the operation. It was arrested by warm lotions. 
With a new tube in the first wound, the animal was easily 
brought to recovery and able to resume work. 
Diaphragmatic Hernia in a Horse \.By Mr. Roy \.—This 
is an addition to the quite large series of similar affections which, 
however, brings another evidence to the congenital nature of 
many cases, consisting as they do in a want of embryonic de¬ 
velopment and incomplete union between the aponeurotic and 
the muscular portions of the diaphragm. The animal, a 15- 
year-old army horse, had been taken with colic several times, 
and ultimately died in one of those attacks. During these last 
he assumed most singular and characteristic positions, at times 
stretching himself with hind legs extending backwards to their 
utmost, and his chest almost resting on the ground ; or, again, 
sitting on his haunches (dog fashion). This last position seemed 
to give him most relief. At the post-mortem a large piece of 
the intestines was found in the thorax, which it had pene¬ 
trated through an orifice in the diaphragm, situated at the sepa¬ 
ration of the muscular and aponeurotic portion, in the lower end 
of the diaphragm, on its right; its diameter was about that of a 
silver dollar; its borders were organized, thick, fibrous, hard, 
solid and smooth.— {Rev. Veter^ 
Exostosis of the Left Side of the Face. —This inter¬ 
esting case is obtained from the clinic of Prof. Peiich and re¬ 
corded in the Journal of Zodtechnie by one of his students, Mr. 
Quevillon. A mare, eleven years old, had had on the left side 
