682 
CASE or LITHOTOMY IN THE HORSE. 
the divided vessels. The horse was now released, and led into 
the stable. In a few minutes he exhibited much uneasiness, with 
the usual symptoms of spasms of the bowels. Six drachms of 
gum opii were dissolved in three quarts of water, and injected 
into the rectum, which appeared instantly to allay every symptom 
of irritation. 
The calculus was of the mulberry kind, very solid, of an oblong 
shape, and the size of a swan’s egg, weighing lib. troy, and 
measuring nine inches by eight in circumference. 
Dec. 3d . — Pulse 36. He appears easy, and has eaten a little 
mash and carrots. The urine escapes by the wound in the peri- 
neum. A warm fomentation was applied to this wound night 
and day constantly, from the time of the operation till the 
morning of the 16th. 
4th . — The appetite good, and every appearance favourable. — 
Pulse 32. 
5th . — Every thing favourable. — Pulse the same. 
6th . — The same : the urine to-day passes by both the wound 
and the urethra. 
7th . — Suppuration established in the wound, with anocasional 
discharge of pus from the interior — other appearances very 
favourable. 
From this time to the 19th there was a progressive improve- 
ment. A good deal of sloughing took place from the internal 
surface of the very extensive wound that had necessarily been 
made in extracting a stone of such an immense size; but this 
was gradually healing : a weak solution of zinc was occasionally 
applied to the edges of the external opening, which was also 
closing very fast, and on this day (19th), the urine was passed 
entirely by the urethra. 
Jan. 1 6th, 1837. — The wound is now quite healed, and so 
perfect has been the process externally, that a small mark, of 
little more than an inch in length, and fine as a hair, is all that 
exists to point out the spot where it was originally made. 
He had been at walking exercise now about a week ; but on 
the 18th he had a severe attack of influenza, which produced 
inflammatory swelling of the hock and sheath to a considerable 
extent ; from this, however, he recovered sufficiently in about ten 
days to go again to walking exercise. 
For some time previous to this there had been a perfect reten- 
tion of the urine in the bladder, and the evacuations by the 
urethra were quite natural in quantity and frequency. Unfortu- 
nately, however, in the second week in February, by which time 
he had become much fresher in condition, and very playful, from 
the sudden and violent exertion which he then used in kicking 
