t, the
same; of the concentrated principle, Barosmin, one to three grains.

PIPSISSEWA (_Chimaphila Umbellata_), or Prince's Pine. This is a tonic
to the kidneys, as well as a diuretic and alterative, and is a mild, but
very efficient remedy. _Dose_--Of decoction, one ounce from four to six
times a day; of fluid extract, one-fourth to one-half teaspoonful; of
the concentrated principle, Chimaphilin, one to two grains.

WATER-MELON SEEDS (_Cucurbita Citrullus_). _Dose_--Of infusion, the
patient may drink freely until the desired effect is secured.

PUMPKIN SEEDS (_Cucurbita Pepo_). They are mild, unirritating, yet
effective diuretics. An infusion of these may be drunk freely.

SWEET SPIRIT OF NITRE (_Spiritus AEtheris Nitros_), is diuretic and
anodyne. _Dose_--One-fourth to one-half teaspoonful, diluted in water,
every two or three hours.

SALTPETRE (_Potassae Nitras_). _Dose_--Powdered, five to ten grains.

ACETATE OF POTASH (_Potassae Acetas_). _Dose_--Ten to fifteen grains,
largely diluted in water. It is more frequently used for this purpose
than the nitrate. It is a most valuable diuretic.

EMETICS.

These are medicines which cause vomiting and evacuation of the stomach.
Some of the agents of this class, termed irritant emetics, produce
vomiting by a local action on the stomach, and do not affect this organ
when introduced elsewhere. Others, which may be termed systemic emetics,
produce their effects through the nervous system, and, therefore, must
be absorbed into the circulation before they can produce vomiting. In
cases of poisoning, it is desirable to empty the stomach as quickly as
possible, hence irritant emetics should be employed, for they act more
speedily. Draughts of warm water favor the action of emetics.

MUSTARD (_Sinapis_) acts promptly and efficiently as an emetic, and may
be employed in poisoning. _Dose_--From one to two teaspoonfuls of
powdered mustard, stirred up in a glass of tepid water. It should be
quickly swallowed and diluents freely administered.

SULPHATE OF COPPER (_Cupri Sulphas_) is a prompt, irritant emetic. It
should be given in doses of ten grains dissolved in half a glass of
water, and its action assisted by the free use of diluents.

SULPHATE OF ZINC (_Zinci Sulphas_) is similar in its effects to sulphate
of copper, but less powerful, and may be taken in the same manner, and
the dose repeated if necessary in fifteen minutes.

YELLOW SUBSULPHATE OF MERCURY (_Hydrarg