wrong; and receipts for the cure of mange are all nonsense, unless we can
imagine that one physic is good for various disorders. The dog is very
subject to mange; that is, the animal's system can hardly suffer without
the derangement flying to and developing itself externally, or upon the
skin. True mange is chiefly caught, being mainly dependent upon contagion;
but all the other varieties have the seats internally, and are chiefly
owing to the keep or lodging. Too close a kennel will give rise to mange,
as will too spare or too full a diet; too much flesh or unwholesome food;
too hard or too luxurious a bed. In fact, there is hardly a circumstance
to which the animal is exposed which will not cause this malady to be
developed. Peculiar kinds of bedding, as barley straw, will give rise to
it; and particular kinds of diet, as subsisting entirely upon flesh food,
will produce it. In short, I know a few, and only a few, of those things
which will cause it; and my time has been so taken up that I have been
able to observe but five distinct varieties; though my reason informs me
there are many more than I here describe. However, as, in describing five
kinds of mange, I do more than either of my predecessors, the public must
be content with the moiety for the present; and wait till either I find
time to accurately note, if possible, the different forms which mange in
the dog will assume, or some more close observer comes forth to take the
task from before me.

True mange is dependent, as in the horse, upon an insect; and though not
commonly met with, is known by the same symptoms, as the similar affection
in the more valuable animal. The skin is partially denuded of hair, but
never perfectly so; for in the most bare place, hairs, either single or in
small and distinct patches, will be seen adhering to the surface of the
body: these remaining hairs are very firmly planted in the skin, have a
coarse or unnatural feel, and look all awry and unthrifty. The skin
appears very dry and scaly; it is corrugated, or thrown into ridges. The
parts chiefly affected have been the back, eyes, neck, &c.; though no part
of the body is exempt, for I have seen it virulent upon the feet, and the
rest of the body comparatively untouched.

The animal appears dejected, though at seasons he may assume his usual
liveliness; but when nothing attracts his attention, his time is nearly
consumed in scratching himself violently. His appetite generally remai