682 
STRAY CASES. 
weight was found to be 3 lb. 6 oz. avoirdupois ; its form 
spherical ; its surface convoluted ; its colour dark brown. On 
making a section of it, part of a nail was found as a central 
nucleus, immediately investing which was a film of phos- 
phate, the vegetable hairs being superposited on this. These 
alternated thoughout the mass in interrupted circular layers. 
Arranged in a radiated form, as seen on the cut surface, was 
coarser vegetable matter, resembling partially digested 
ingesta. On the external surface these radii terminated in 
depressions, the elevated parts of the convolutions being 
made up of the hair of the oat. Chemical analysis showed 
the proportion of vegetable matter to be 60 per cent, the 
remainder consisting of the phosphate with a little silex. 
It is not necessary to state the origin of these constituents, 
both being derived from the food. Their accumulation, 
however, may be referred to derangement of the digestive 
organs, probably caused by the provender not having been 
carefully selected, as oats which are thin and poor abound in 
these hairs, while the amylaceous matter they contain is 
small in proportion.] 
STRAY CASES. 
By John Aitken, Y.S., Dalkeith, N.B. 
DEPOSIT OF BONE IN THE TESTIS OF A COLT. 
Recently I castrated a bay colt, one of three belonging to 
Robert Hislop, Esq., brewer and farmer, Prestonpans, which 
operation I performed by cutting through the skin and 
tunica vaginalis, and applying wooden clams filled with 
caustic, immediately above the testicle, embracing the 
spermatic cord and that portion of the vaginal tunic attached 
to the epididymis, the usual mode of operating when the 
clams are used ; although I have lately cut away that portion 
of the vaginal coat attached to the epididymis, with the vas 
deferens, and applied the clams upon the spermatic cord 
alone, about its middle, when a little more blood has flowed 
from the division of some small vessels, but less swelling 
has followed. According to the usual custom, all the parts 
below the clams are cut away to within a quarter of an inch 
of them, they being allowed to remain on from twenty- 
four to thirty-six hours afterwards, when they are removed, 
