of
arsenicalis is to be increased half-a-drop each day, and in the latter
instance one drop daily is to be the advance; the quantity in both cases
to be distributed over three doses, one to be given in the morning, one at
noon, and the last at night.

The medicine is to be kept on increasing each day, until the dog loathes
his food; has a running from the eyes; a scarlet conjunctiva; or exhibits
some symptom that denotes the physic has hold of his system; when the
arsenicalis is to be discontinued for three days, and then steadily
persevered with at the dose which preceded the derangement. Thus,
supposing it requires three and a half drops to throw the small dog off
his appetite, the quantity to resume with will in that case be three
drops.

There is no power I possess which can predicate the quantity of the liquor
arsenicalis which an animal will bear; its effects on different creatures
of the same species are so various, that what one can gorge with impunity
would kill his companion. On this account no fixed quantity of the
medicine can be recommended; but the practitioner must be satisfied to
watch the symptoms induced, and be content to be guided by these. So soon
as the physiological symptom is beheld, the good results of the medicine
may be anticipated; and no compound in the pharmacopoeia works with
greater certainty. The disease will begin to decline; and in a month, six
weeks, or two months at furthest, will be thoroughly eradicated. In the
course of that period, however, it may be as well to give Nature a jolt
every now and then, by occasionally increasing the dose, being always
prepared to diminish it on the symptoms giving the slightest hint that it
is prudent so to do. The arsenicalis should be used simply diluted with
water; and during the period occupied by the cure, no other medicine
whatever will be required.

The next form of mange attacks very fat and cruelly overfed animals. The
poor dog is very foul. He, as it were, smells aloud; and his hide is
enormously thickened, being everywhere devoid of sensation. Pinch it as
hard as you can--even until the moisture be forced through the pores by
the pressure--and the operation which should inflict pain, will only
communicate pleasure.

The animal, instead of crying out or endeavoring to snap, will stand
altogether quiet, the expression of the face announcing the perfect
delight it experiences; or the head turns round to lick the hand of the
pincher, the