ate of iron One to four scruples.
Extract of gentian Two to eight drachms.
Powdered quassia A sufficiency.

Make into twenty pills, and give three daily.

At the same time I give the liquor arsenicalis, which I prepare not
exactly as is directed to be made by the London pharmacopoeia, but after
the following method:--

Take any quantity of arsenious acid, and adding to it so much distilled
water as will constitute one ounce of the fluid to every four grains of
the substance, put the two into a glass vessel. To these put a quantity of
carbonate of potash equal to that of the acid, and let the whole boil
until the liquid is perfectly clear. The strength is the same as the
preparation used in human practice; the only difference is, the coloring
and flavoring ingredients are omitted, because they render the medicine
distasteful to the dog. The dose for the dog is from one drop to three
drops; it may be carried higher, but should not be used in greater
strength, when a tonic or febrifuge effect only is desired.

Of the liquor arsenicalis I take ten or twenty drops, and adding one ounce
of distilled water, mingled with a little simple syrup, I order a
teaspoonful to be given thrice daily with the pills, or in a little milk,
or in any fluid the creature is fond of. The taste being pleasant, the dog
does not object to this physic, and it is of all importance that it
should be annoyed at this time as little as may be possible.

Numerous are the cases which have thus been shortened by this method; and
the advantage gained by this mode of treatment is, that if the measures
employed be not absolutely necessary, they do no harm, and if required,
they are those which are calculated to mitigate the violence of the
disease; so for three or four weeks I pursue this course, and should all
then appear well, I dismiss the case.

Most generally, however, the dogs brought to us with the distemper have
the disease fairly established before we see them. Then I never purge or
vomit: the time when such agents could be remedial has passed, and if now
used, though they will seem to do some immediate good, the after
consequences are always to be regretted. The action of the purgative has
scarcely subsided before the distemper assumes a more virulent form, and
the probability of the termination is rendered more dark. During the
distemper I pay little attention to the bowels; and, however great may be
the costive