[Symbol: Rx] Sugar of lead [Symbol: scruple] i. Water [Symbol: ounce] i. If the discharge be fetid, the following may be applied often: [Symbol: Rx] Chloride of lime [Symbol: drachm] i. Water 1 pint. This affection in old dogs is very troublesome, and in most cases impossible to cure. Alum, zinc, copper, lead, and other astringent applications may be used in powder, as a local application in these cases. A seton and blisters will also be serviceable. TUMORS OF THE FLAP. A tumour, particularly in old dogs, is often seen extending from the tip of the flap even to the base of the ear. It progresses slowly but surely, if not interfered with in its career, and will become eventually enormously large and very painful. These tumours are most common in old setters, Newfoundlands, and hounds. Treatment'.--The tumour, at its commencement, may be discussed by the application of astringent washes, as warm vinegar, water, and laudanum, or sugar of lead. When, however, it has become more extensive, the only remedy is opening it through its whole extent, and pressing out its purulent content. A poultice may then be applied, and tepid fomentations used for several days. It is often extremely difficult to heal up the abscess, or arrest the fetid discharge that is constantly collecting: a seton placed in the poll, in connexion with washes of a stimulating character, will, however, effect a cure, if patiently persevered in. Either of the following will answer this purpose: [Symbol: Rx] Chloride of lime [Symbol: drachm] i. Water [Symbol: ounce] vi. Mix. or, [Symbol: Rx] Sulphate of zinc [Symbol: scruple] i. Water [Symbol: ounce] jii. Mix. We used on one occasion tincture of iodine with perfect success in an old and obstinate case. CANKER IN THE EAR.