CYSTIC CALCULI IN A TERRIER. 
643 
belly was frequently fomented by means of hot flannels wrung 
out of hot water, and she was kept warm and comfortable, 
for I saw that a soothing treatment to relieve the pain was 
all that could be done. She had given to her, three times a 
day, Sodas Carb. Exsic. and an aromatic, made into a pill 
with soap ; but all was of no use, as I anticipated. She died 
on the 2d of December. 
Post-mortem examination. — On laying open the abdomen 
and thorax, every organ was found healthy, except the blad- 
der. The walls of that viscus were very much thickened 
and contracted, and the two calculi I send to you were im- 
pacted in it. They nearly filled the entire cavity, it being 
impossible for more than a dessert-spoonful of urine to re- 
main in the bladder at a time. I regret I did not make a 
wet preparation of it instead of a dry one. I have seen 
several cases of one calculus in the bladder, but never be- 
fore met with two, both of them being so nearly of the same 
size and form. 
[. Description and Analysis of the Calculi. — In form , each was 
that of a triangular pyramid, the two being placed together 
at their bases. The v: eight of them was six drachms. In 
structure they were made up of layers, superposited on each 
other, the colour being nearly white, resembling hard chalk. 
A fragment under the blowpipe first blackened, and then 
exhaled ammonia. On the flame being urged, it became 
whiter, and underwent fusion. A portion being pulverized, 
dissolved readily in dilute hydrochloric acid, in which the 
oxalate of ammonia produced a cloudiness. To the acid so- 
lution carbonate of soda added in excess caused an abundant 
amorphous precipitate to be thrown down. The inference 
from the above analysis is that, the concretions consist of 
the ammonia-magnesian, with phosphate of lime, or triple 
calculus, usually called fusible calculus. 
We are much obliged to Mr. Lonsdale for this addition to 
our collection.] 
A strict relation exists between the size of the blood cor- 
puscles and the diameter of the pulmonary capillaries, and 
for this reason the transfusion of the blood of an animal into 
the veins of another of a different order is often fatal, from 
the corpuscles differing in dimensions. 
