928 
OSSIFICATION OF THE TRACHEA. 
Shortly afterwards he fell to the ground and expired, just 
forty hours from the commencement of the attack. 
The post-mortem examination disclosed a double twist of 
the ileum, immediately below its juncture with the caecum. 
All the rest of the organs were perfectly healthy. The 
strangulated part of the bowel was sphacelated. 
I have seen several cases of volvulus in which the visible 
mucous membranes were not injected throughout the disease, 
so that I am beginning to think that this may be a distinctive 
feature betwixt it and true enteritis or peritonitis. 
Note. —The 01. Lini was given with chloroform and 
opium, so that the anaesthetic action of the chloroform might 
be more slowly developed and its action prolonged. The 
desired result was fully gained in this case (i. e . a long period 
of ease from pain). 
OSSIFICATION OF THE TRACHEA, A RESULT 
OF TRACHEOTOMY, 
/ 
By the Same. 
About the end of December last a dark brown cart horse 
was treated by Messrs. Lawson and Son for laryngitis. 
Asphyxia being threatened tracheotomy was performed, and 
in due time the animal recovered and returned to work. In 
three months after this the driver complained that the horse 
experienced great difficulty in respiration during labour, 
which led to the site of the operation being examined, when 
it was found to be slightly thickened ; an incision was made 
through the skin to relieve the tension, and a blister after¬ 
wards applied to the part. 
After the lapse of another month the dyspnoea became 
much w'orse, when it was found that ossification of the part, 
with much thickening, had taken place. By means of a 
small surgical saw r a piece of solid bone, two and a half inches 
long by three fourths of an inch broad, was cut from the place 
of the first incision in the windpipe, and a tube inserted. 
Much relief followed the operation. 
At the expiration of two months the opening was again 
allowed to close, and the horse was put to light work, which 
he performed satisfactorily for a short time. On one occa¬ 
sion, however, being taken to pull some heavily-laden boats, 
