ral years without any intermission or
diminution in quantity, except when the food was scarce and dry; but a
full flow of milk always came back upon the return of a full supply of
green food. This cow ran in the Mississippi low grounds or swamp near
Natchez, got cast in deep mire, and was found dead. Upon her death, Mr.
Winn caused a second cow to be spayed. The operation was entirely
successful. The cow gave milk constantly for several years, but in
jumping a fence stuck a stake in her bag, that inflicted a severe wound,
which obliged Mr. Winn to kill her. Upon this second loss, Mr. Winn had
two other cows spayed, and, to prevent the recurrence of injuries from
similar causes with those which had occasioned him the loss of the first
two spayed cows, he resolved to keep them always in the stable, or some
safe enclosure, and to supply them regularly with green food, which that
climate throughout the greater part of, if not all, the year enabled him
to procure. The result, in regard to the last two spayed cows, was, as
in the case of the first two, entirely satisfactory, and fully
established, as Mr. Winn believed, the fact, that the spaying of cows,
while in full milk, will cause them to continue to give milk during the
residue of their lives, or until prevented by old age. When I saw the
last two spayed cows it was, I believe, during the third year that they
had constantly given milk after they were spayed. The character of Mr.
Winn (now deceased) was highly respectable, and the most entire
confidence could be reposed in the fidelity of his statements; and as
regarded the facts which he communicated in relation to the several cows
which he had spayed, numerous persons with whom I became acquainted,
fully confirmed his statements."

In November 1861, the author was called to perform this operation upon
the short-horn Galloway cow, Josephine the Second, belonging to Henry
Ingersoll, Esq., of this city. This cow was born May 8th, 1860. The
morning was cold and cloudy. About ten o'clock the cow was cast, with
the assistance of R. McClure, V.S., after which she was placed under the
influence of chloric ether. He then made an incision, about five inches
in length, through the skin and walls of the abdomen, midway between the
pelvis bone and the last rib on the left side, passing in his right
hand, cutting away the ovaries from the Fallopian tubes with the
thumbnail. The opening on the side was then closed by means of the
inte