Cancer occasionally attacks the vagina of the bitch. It is the consequence of injury and ulceration of the membrane lining that passage; either from being suddenly forced from the dog; or from difficult parturition, and in which the practitioner has been compelled to have recourse to instruments; or the presence of, or awkward or ineffectual attempts to remove, a fungous substance which sometimes grows on the membrane of the vagina, and which will be described, in its proper place. Cancer should not be confounded with these fungous excrescences, for their cauliflower appearance, their florid colour, the pedicle or stalk from which they spring, and the blood which is continually flowing from them, will sufficiently characterize them: whereas cancer is immediately distinguishable by its livid colour, its uneven surface, its hardened base, and its peculiar pungent and nauseous smell. When the vagina is felt externally, it is uniformly soft if it is occupied by this fungus, but it is peculiarly hard and unyielding when it is cancerous. .

Even if it is attacked before there is any external ulceration, there is very little chance of doing good. The iodine pills may be given internally, and the diluted tincture of iodine, as before recommended, injected, up the vagina. The tincture of iodine is thus composed: -

Recife (No. 19). Tincture Of Iodine

Take -Iodine, a drachm;

Rectified spirit, an ounce: Shake them several times well together, and the iodine will speedily dissolve. Sufficient only for the use of a week or two should be made at once, because a portion of the iodine will after that time separate from the spirit, and become precipitated.

Cancer In The Ear

Cancer is occasionally the consequence of inveterate canker. It appears first in the Internal part of the ear, but it spreads to the cheek and down the face, corroding and destroying every thing before it. The progress of this species of cancer can seldom be arrested.