337 
EXTRACTS FROM EXCHANGES. 
terminal two feet of the ilium, which were very much inflamed 
and of light claret color, covered with black spots and perfor¬ 
ated in eight or nine places, the holes varying in size from a 
large pin’s head to a sixpenny piece. The mucous membrane 
of the caecum and colon was covered with a great number of 
strongylus tetracanthns, and thousands more were lying deeply 
imbedded in its substance, and there were a few lying free on 
the surface of the bowel’s contents. The ilium was empty, but 
there were numerous strongyli present. In the wall of the 
anterior mesentery were found several well developed specimens 
of the strongylus armatns.— Record^ 
Paralysis of the Radial Nerve. —This subject has 
called the attention of veterinarians in England in relation to 
its etiology, a case of dropped elbow having been related 
which was attributed to a fracture of the first rib. Several cases 
liave been published on the subject and among the principal is 
an article from Mr. E. W. Hoare, F. R. C. V. S., where he relates 
several cases, some where fracture of the first rib existed and 
others where it was absent. Very properly Mr. Hoare concludes 
that after consideration of a series of cases one is justified in ask¬ 
ing whether the condition of “dropped elbow” always depends 
on a constant lesion, and to accept the idea that cases present¬ 
ing the symptoms of “ dropped elbow ” may depend on fractures 
of the first rib or on paralysis of the radial nerve from some un¬ 
known cause or on some lesion of the biceps extensor brachii 
muscles. Some cases will recover readily and completely, 
others, on the contrary, will linger and render the horse entirely 
useless. These last are frequently due to a costal injury.—( Vet, 
Record.') 
Rupture of the C^cum \By Mr. IV. A. L. Robertsoji]. 
—This old mare (12 years) had for the past eight years been 
subject to colicky pains which were attributed to indigestion, 
due probably to bots. Her teeth were attended to—she received 
treatment to relieve her from the bots, but after a temporary 
improvement was again taken ill. She had dull pains ; sat on 
her haunches, groaning and straining severely ; rectal examina¬ 
tion revealed a large rounded doughy mass, supposed to be aii 
impacted colon. She died. Post-mortem showed at once 
evidences that intestinal rupture had taken place, which was 
traced to the arch of the caecum, below which and to the right 
side was seen what at first sight appeared to be a large impacted 
portion of the first division of the great colon, but upon removal 
proved to be a large dilatation in the arch of the ccecum, 
