As a rule, all skin diseases which affect the dog are positively due to carelessness or neglect in some way or other, and mostly all of them are easily removed by a change of diet, a dose of physic, and a good wash, excepting mange. This is often a very determined opponent to active remedies, and one that has often in my experience baffled a few knowing ones.

Properly speaking, mange is of two distinct species; the one arises from a parasite, the other from a vegetable origin.

In the first illustration, which is the most common form of it, it appears frequently in large kennels, because it is highly contagious, and there is now no difference of opinion but that it can be bred and propagated by bad management.

The hair falls off in patches of irregular form, the skin is dry and rough, and cracks and creases in almost every direction; from some of these cracks an ichorous discharge flows. The dog eats well, but appears listless and languid, owing to the want of sleep; there is great thirst and. slight fever; the patient is for ever scratching and tearing himself.

Treatment

Carbolic acid crude, one ounce; spirits of tar, one ounce; black sulphur, one ounce; corrosive sublimate, twelve grains; common oil, twelve ounces. Mix and apply with a brush, allowing. the dressing to remain on for fourteen days; then wash off with carbolic soap. Should any evidence remain to testify that the disease still lingers, repeat the dressing, at the same time taking care to administer a good aperient; remove the dog from the place it usually occupied to a fresh clean kennel. If the disease is very obstinate and will not yield, then arsenic must be had recourse to in the following doses: 1/10 to1/15 of a grain; or you may give the liquor arsenicalis with the food, the dose being one drop to every four lbs. weight of the dog.