_Treatment_: In the latter mentioned cases—that is, when the injury occurs during parturition, the passage should be first thoroughly washed out with a tepid solution of perchloride of mercury, one in three thousand, using from two to twenty tablespoonfuls,[1] and about two minutes afterwards all traces of this should be removed by again syringing the passage with water that has recently been boiled, used just warm. Afterwards repeat the injections night and morning, now using a saturated solution of boracic acid. If temperature is high, give from one to five grains[1] of salicylate of quinine in a cachet, and if temperature is not reduced in six hours, repeat the dose. In ordinary cases of injury, simply washing the passage out night and morning with a saturated solution of boracic acid or with a solution of permanganate of potash—one grain to every ounce of warm water—is sufficient. =Vagina (Polypus of)=: _Symptoms_: A pear-shaped growth with the narrow end attached to the membrane of the vagina. In these cases the bitch is frequently straining to pass water, and she is constantly licking the parts; and there is generally some mucus discharge. After a time, especially when she comes in season, the growth may show itself externally. _Treatment_: It consists in drawing the growth gently out as far as it will come, and placing a ligature of strong silk or catgut tightly round the neck or narrow part, then severing the polypus by cutting through the neck between the ligature and growth a full half-inch away from the ligature. Afterwards syringe the passage out night and morning with a warm solution of boracic acid. =Vagina (Prolapsus of)=: _Symptoms_: A condition that only occurs during the “heat” or œstrum of a bitch. It is more common amongst large and bull-bitches than other and smaller ones. It shows itself as a pinkish, glistening body at the entrance to the vagina (vulva). As the parts become more relaxed during the “heat” the protrusion increases in size and prominence, and in a large bitch may be as big as an orange. As the result of exposure, and being rubbed along the ground when the bitch sits, the parts become sore and inflamed. The protruding part is merely a fold of thickened and relaxed membrane of the vagina, arising just forward of the passage to the bladder. The swelling, which has a broad base (and in this respect is unlike a polypus, which has a narrow constricted base), can be usually easily returned, but it comes out again almost immediately. Once a bitch has suffered from prolapsus of the vagina it generally occurs afterwards at each period of heat unless removed by operation, though sometimes when a bitch has been bred from, it does not occur again.