ans of a screw working upon the
chain, and at the same time the cord is twisted off. No bleeding
follows this method of operating.

This instrument is constructed upon the same principle as the _acraseur_
for use in the human family, for the removal of hemorrhoids, etc., the
dimensions of the two only varying.

The advantages resulting from the use of this instrument over all other
methods are, that the parts generally heal within a week,--the operation
is not so painful to the animal,--it is less troublesome to the
operator,--also to the owner of the animal,--and lastly, it is a safer
and more scientific operation. Its success in France soon gave it a
reputation in England, and recently it has been introduced by the author
into this country, and with the best results. Contractors, hearing of
the success attending this new mode of operating, have visited him from
all parts of the country to witness its performance, and not one has
returned without leaving an order for this instrument,--so well
convinced have they been of its decided superiority over all other
methods.

TRACHEOTOMY.

In consequence of the formation of tumors about the throat in cattle,
from inflammation of the parotid gland, blain, etc., so characteristic
of this species of animals, it sometimes becomes necessary to perform
this operation in order to save their lives. It never fails to give
instant relief.

After the animal has been properly secured,--which is done by an
assistant's holding the nose with one hand, and one of the horns with
the other,--the operator draws the skin tight over the windpipe with the
thumb and fingers of his left hand; then, with the scalpel in his right,
cuts through the skin, making an incision about three inches long,
dissecting up the skin on each side, which brings the _trachea_, or
windpipe, in full view. He then cuts out a piece of the cartilaginous
rings, about two inches long and about half an inch wide. This simple
operation has saved the lives of very many valuable animals. The wound
readily heals, and seldom leaves any perceptible blemish, if the work is
properly performed.

SPAYING.

To secure a more uniform flow and a richer quality of milk, cows are
sometimes spayed, or castrated. The milk of spayed cows is pretty
uniform in quality; and this quality will be, on an average, a little
more than before the operation was performed. In instances where the
results of this operation have been carefully no