33*2 
CONTRIBUTIONS TO COMPARATIVE PATHOLOGY. 
No. VI. 
By Mr. You att. 
Chorea. 
May 30 th t 1833. — A jackal (canis aureus) has not been well 
for some time, but is now getting thin and weak, and the weak- 
ness is principally referrible to the hind legs and loins. Within 
the last two days, a spasmodic twitching of the hind legs, and 
particularly of the right one, has come on. Give one-third of 
a grain of nitrate of silver, morning and night. 
June 3 d. — No change. Continue the pills, and chain the 
animal outside, where he may have plenty of air. a 
6th . — The eye does not appear so sunken, and the counte- 
nance is somewhat brightened ; the bowels constipated. Give 
two grains of calomel, and continue the nitrate of silver as before. 
7th . — Little change. Give a drachm of Epsom salts in the 
morning, and the nitrate of silver at night. 
\6th . — Very little change. The animal struggles violently 
against the salts, and, in fact, one half is wasted. Give the 
nitrate morning and night, and one grain each of calomel and 
antimonial powder at noon. * 
13^. — The spasm of the legs as violent as ever, and the 
animal rapidly losing flesh : medicine as before. 
1 7th . — Little change, and yet the countenance is brighter. 
Continue medicine, and coax occasionally with a live rabbit. 
19^. — No change. Insert a seton in the poll. Continue the 
aperient when necessary ; and give morning and night a scruple 
of carbonate of iron, with five grains of ginger. 
2\st. — Died. He was almost a skeleton. The membranes of 
the brain were injected, and exhibited traces of intense inflam- 
mation at no distant period. The whole of the brain, particu- 
larly about its base, was softened, and the spinal cord through 
its whole extent was not merely pultaceous, but semifluid. 
Chorea with Epilepsy. 
June 6th, 1833. — African jackal was apparently well on the 
fourth ; yesterday it had a violent fit, succeeded by others, and 
to-day has chorea in both fore legs. Appetite gone : bleed to 
eight ounces, calomel gr. ij, and then the nitrate of silver pills. 
1th . — Evidently worse — unable to stand, and every limb in 
