366 
A CASE OF LITHOTOMY. 
shoulders; and which is now, by all purchasers of young horses 
conversant in such matters, received as a general law of Nature, 
to which exceptions are comparatively rare. In my next lecture I 
hope to be able to shew, in a statistical manner, to what extent, and 
at what age, such growth may be expected to take place : in the 
mean time I would observe, in reference to it, that it appears to 
consist mainly or entirely in a shooting-up of the spinous pro- 
cesses of the vertebrae. We see the colt with thick clumsy 
shoulders in consequence of his scapulae reaching as high as the 
tops of his spinpus processes : we examine him grown to a horse, 
and find him with finely-formed shoulders — with scapulae no higher 
than they ought to be, and with withers admirably raised ; and, 
withal, we discover on admeasurement that he has actually risen 
one or two inches in the withers after, to a common observer, he 
might have been supposed to have attained his perfect growth. 
[To be continued.] 
A CASE OF LITHOTOMY ON A HORSE. 
By Professor Dick, Edinburgh. 
Edinburgh Veterinary College, 
18th June, 1842. 
My dear Sir, — I send you the following account of a case of 
lithotomy, which, being rare, may be interesting to your readers. 
The subject of this operation was a white pony, about thirteen 
hands high, from sixteen to eighteen years old, which had been 
purchased at Falkirk tryst a few days previous to my seeing it, 
and, as I have learned since, had been in the possession of a cler- 
gyman in Sterlingshire for a number of years, and known as the 
“ Arabian pony.” It had been purchased for a small sum at the 
tryst to go in a baker’s cart, but, on its being brought home, it 
was found to be unwell and off its feeding : it was, therefore, 
brought for my inspection, and from its penis being slightly pro- 
truded from the sheath, and a constant dribbling of urine from 
the urethra, accompanied with severe straining, tucking up of 
the belly and roaching of the back, I was convinced that there 
must be a stone in, or some serious disease affecting, the urinary 
passages. 
The general appearance of the pony was dull and languid ; very 
thin in condition; its pulse about 50, and feeble. On introducing 
