t occurs
the part should be thoroughly washed with water, and if at hand a little
alcohol may be rubbed over the part; the affected tissues return to a
normal condition in the course of a short time in the vast majority of
cases.

_Strychnine poisoning_ is comparatively rare, except when this substance
is given with suicidal or murderous intent. Water should be given,
immediately followed by an emetic. A mass of crystals of permanganate of
potash as big as a pea may be administered in a glass of water, if this
substance be at hand. After the poison has been absorbed nothing is
usually of any avail if the amount was originally sufficient to produce
death.

One of the commonest forms of poisoning is from _opium_ in the form of
morphine, paregoric or laudanum. When this happens the stomach should be
washed out by water frequently, even where the drug was administered
hypodermatically. This is best accomplished by causing vomiting by warm
water to which a small amount of mustard has been added. The patient
should be given strong coffee or tea at frequent intervals, and
artificial respiration should be practiced. Where it is possible to
obtain it, permanganate of potash in a watery solution should be given,
enough of the chemical being used to make the water a deep purple color;
this may be frequently repeated, as the substance is not poisonous in
ordinary doses, and destroys morphine and other alkaloids of opium very
rapidly.

_It should never be forgotten that infants and children are poisoned by
comparatively very small doses of opium, and consequently nothing
containing any derivative of this substance should be given them except
on the advice of a competent doctor._

Many soothing syrups advertised for the relief of the minor ailments of
children contain opium, and there can be no doubt that many deaths have
occurred as a consequence of taking such nostrums.

_Mushroom poisoning_ in this country is relatively rare, but there are
quite a number of popular notions on this subject that are totally
incorrect, chief among which is the idea that there is a difference
between mushrooms and toad-stools, the former being generally regarded as
edible, and the latter poisonous. As a matter of fact, those conversant
with this subject make no distinction between the two, using the terms
toad-stool and mushroom as interchangeable. It is likewise a common error
to suppose that we possess any tests by which the poisonous toad-sto