192 REMARKS ON A CASK OF ENTERITIS IN A MARE. 
violent inflammation of the rectum had existed, in consequence 
of the administration of thirty drops of the croton oil in two days, 
in the form of injection. A week, however, before his death all 
these complicated symptoms had disappeared. 
For the first time — twenty-four hours before he died — he voided 
by the urinary canal four ounces of a white purulent matter. 
On examining him after death, we found in the pelvic cavity, 
behind the peritoneum, a large abscess containing a similar fluid. 
This abscess seemed to have been developed consecutively to in- 
flammation of the rectum. The lateral ventricles of the brain 
were filled with a limpid serosity. The plexus choroides were 
double their natural size, and contained several granulations. 
M. Lefort has sent some observations on the supposed poisonous 
properties of beech-mast. According to him, five horses had died 
with all the symptoms of poison. This was denied by other ve- 
terinary surgeons. It was determined that the actual property 
of the mast should be put to the test. Four horses and a mare 
were subjected to experiment. The horse ate it without any ap- 
parent dislike, mingled with barley-meal. The others fasted two 
days before they would touch it. When they were at length in- 
duced to eat it, they took as much as fourteen pounds of it in the 
course of three days without any apparent injury, except a greater 
degree of thirst than usual, and some acceleration of pulse. 
M. Laborde has sent an account of a horse that died two hours 
after an attack of colic. The abdominal cavity presented a great 
quantity of faecal matter, and also a calculus, as large as a fist, 
loose in the cavity. It was irregular, and there were several dis- 
tinct cavities in it. Its weight was more than a pound and a 
quarter. After having traced its course through the intestinal 
canal to the very origin of the rectum, the calculus had perforated 
the colon at the extremity of its floating portion, and its fall into 
the peritoneal cavity had been the cause of death, when it had 
only a small distance farther to travel in order to escape by the 
natural passage. 
Rec. de Med . Vet., Dec. 1841. 
REMARKS ON A CASE OF ENTERITIS IN A MARE. 
By Mr. J. Dawber, V.S., Liverpool. 
As a relation of the following particulars, connected with a 
case which I lately attended, may not be uninteresting to the 
members of the veterinary profession, I beg to submit them for 
publication in your useful Journal. 
