yri Sulphas flava_), commonly
known as _Turpeth Mineral,_ is an efficient and most desirable emetic in
membranous croup. It is an active poison, but, as it is quickly thrown
up with the contents of the stomach, there is no danger from its
administration. _Dose_--It should be given to a child in doses of from
three to five grains, in the form of powder, rubbed up with sugar of
milk.

IPECAC (_Cephaelis Ipecacuanha)._In large doses Ipecac is a systemic
emetic. In small doses, it exerts a specific influence upon the mucous
membranes, relieves nausea and irritation, and subdues inflammation. In
cholera infantum it is an invaluable remedy, if given in very small
doses. By allaying irritation of the stomach and restoring tone and
functional activity to it and the bowels, it gradually checks the
discharges and brings about a healthy condition. It is also valuable in
dysentery, and is borne in large doses. As an emetic the dose is, of
powder, five to ten grains in warm water; of fluid extract, ten to
twenty drops.

[Illustration: Fig. 132.
Lobelia. ]

LOBELIA (_Lobelia Inflata_), sometimes known as Indian Tobacco, or
Emetic-weed. The herb and seeds are used. This is a powerful, systemic
emetic, but very depressing. _Dose_--Of the powdered leaves, fifteen to
twenty grains; of the infusion, one to three ounces; of the fluid
extract, ten to fifteen drops.

BONESET (_Eupatorium Perfoliatum)._ _Dose_--Of the warm infusion or
decoction, two to three ounces; of the fluid extract, one teaspoonful in
hot water: of the concentrated principle, Eupatorin, two to five grains.

EMMENAGOGUES.

Emmenagogue is a term applied to a class of medicines which have the
power of favoring the discharge of the menses. We shall mention only a
few of those which are best adapted to domestic use.

[Illustration: Fig. 133.
Pennyroyal. ]

PENNYROYAL (_Hedeoma Pulegioides)._ Pennyroyal, used freely in the form
of a warm infusion, promotes perspiration and excites the menstrual
discharge when recently checked. A large draught of the infusion should
be taken at bed-time. The feet should be bathed in warm water previous
to taking the infusion.

BLACK COHOSH (_Cimicifuga Racemosa)._ Black Cohosh, known also as Black
Snake-root, is an effective remedy in uterine difficulties. _Dose_--Of
the tincture, twenty drops; of the fluid extract, ten drops.

TANSY (_Tanacetum Vulgare)._ Tansy is beneficial in suppressed
menstruation. _Dose_--Of the infusio