618 DEATH CAUSED BY OL. PETROLEI. 
After the inflammatory action has subsided, I give, by way of 
diet, sweet bran, bruised oats, and carrots. May not the seton 
under the jaw help to prevent some horses from becoming roar- 
ers, by determining the inflammation to the external parts, while 
the seton in the chest relieves the respiratory organs by the same 
process, and prevents hydrothorax? And is not the free access 
to pure atmospheric air beneficial to the animal, by its acting first 
as a sedative, and afterwards as the best of all tonics? 
DEATH CAUSED BY OL. PETROLEI. 
By Mr. Cartwright, Whitchurch. 
On the 19th of May 1823, a strong half-bred mare, low in 
condition, was brought to a veterinary surgeon to be dressed for 
the “Riff” (Mange?), having it very badly. He ordered the 
apprentice to give her a good dressing with the ol. petrolei, and 
soon afterwards left home. The apprentice immediately put his 
order into execution, and rubbed on the poor animal about three 
pints of this stimulating fluid in its pure state. This was about 
three o’clock in the afternoon of a very hot day. During the 
time it was being rubbed in with a brush, she was a little uneasy, 
as if in pain ; but just before the time (half-past three) that she 
dropped down in the yard, she became more violently affected, 
and shifted about from place to place, and, when down, she 
perspired much, the sweat passing from her like steam or smoke — 
with twitchings all over the body, restlessness, the pulse quick- 
ened, the inside of the nostrils and eyelids greatly inflamed, and 
the respiration quickened. 
4 o'clock . — The master saw her, and took about three quarts of 
blood from her, which seemed to ease her ; but her jaws became 
partially locked, and her tail violently agitated. 
5 p.m. — About the same, but the belly is now swollen — respira- 
tion accelerating — great twitchings about the neck — large flow of 
saliva from the mouth — and she is insensible to external objects. 
9. — The same, and jaws locked. 
11. — In the same state. She died some time in the night, and 
most probably soon after being left. 
Examination . — The external parts of the body were (after the 
skin was removed) inflamed. The right lobe of the lungs 
greatly congested, and on cutting into it, a quantity of blood, to 
the amount of two or three quarts, flowed out, and was extremely 
black. The mesentery very vascular. On the lower surface of 
the spine, about the seventh or eighth dorsal vertebra, there was a 
