204 
EXTRACTS FROM EXCHANGE^. 
thicker than normal, and exhibiting a tear an inch long in its 
side. At the point which had checked the entrance of the 
catheter was found a stricture almost occluding the lumen of 
the canal, and pressed against by urinary salts. There was ap¬ 
parently but one line of treatment: an artificial opening, which 
if undertaken earlier would probably have been successful. 
EXTRACTS FROM EXCHANGES. 
FRENCH REVIEW. 
Lameness Following an Abscess of the Mastoido- 
Humeralis [By Mr. Carougeau\. — A heavy draught horse 
had an abscess of the left mastoido-humeralis, for which he was 
treated, and recovered in the usual length of time. Some two 
years later, he gradually became very lame in the left fore leg. 
The pain was very great; the animal could scarcely put any 
weight on the lame leg, walking on three legs, and on the 
lower part of the neck, a little above the point of the shoulder, 
there was a slight swelling, which to be carefully examined re¬ 
quired means of control (twitch). The left mastoido-humeralis 
was invaded with a very thick induration measuring 20 centi¬ 
metres in length and occupying the place where the abscess 
removed two years before had existed. This indurated tissue 
was the cause of the lameness, pressing on the nerves of the 
region. Its removal was essential to recovery. The animal 
was cast, the parts disinfected, a large incision made through 
the skin, and the indurated portion of the muscle excised, care¬ 
fully avoiding the blood vessels of the jugular groove, which 
were readily seen at the bottom of the wound. The portion re¬ 
moved was made of very hard tissue, formed of very dense con¬ 
nective bands, and elastic fibres. The wound was closed with 
sutures and treated with antiseptics. Union took place by first 
intention. The condition of the patient after the operation was 
very suggestive ; once relieved of his means of restraint, the 
animal was considerably relieved of his lameness, and could use 
his leg in standing or walking. He resumed work in ten days. 
— [Joitrn. de Zodtech.) 
Comminuted Fracture of the Ischium in a Horse 
[By MM. Mather and Morey ]. — Two weeks previous this 
large Percheron fell on his right side upon a rock and severely 
bruised himself. He presents at the point of the ischial region 
