narcotic, according to the size of the dose administered. _Dose_--Of the
dry powder, one-fourth to one grain; of tincture (Laudanum), five to
fifteen drops; of camphorated tincture (Paregoric), one-half to one
teaspoonful; of

Morphine, one-eighth to one-fourth grain; of Dover's Powder three to
five grains.

HYOSCYAMUS (_Hyoscyamus Niger_), commonly known as Henbane. The herb is
used. It is a powerful narcotic, and unlike Opium, does not constipate
the bowels, but possesses a laxative tendency. Therefore, it may be
employed as an anodyne for allaying pain, calming the mind, inducing
sleep and arresting spasms, when opiates are inadmissible. _Dose_--Of
alcoholic extract, one-half to two grains; of fluid extract, five to ten
drops; of the concentrated principle, Hyoscyamin, one-twelfth to
one-fourth of a grain.

[Illustration: Fig. 116.
Poison Hemlock. ]

POISON HEMLOCK (_Conium Maculatum_). The leaves are the parts used.
Poison Parsley, as it is sometimes called, is an anodyne, narcotic, and
an excellent alterative. _Dose_--Of fluid extract, two to six drops; of
solid extract, one-fourth to one-half grain.

BELLADONNA (_Atropa Belladonna_) or Deadly Nightshade. The herb or
leaves are a valuable agent. In overdoses, it is an energetic, narcotic
poison. In medicinal doses it is anodyne, antispasmodic, diaphoretic,
and diuretic. It is excellent in neuralgia, epilepsy, mania, amaurosis,
whooping-cough, stricture, rigidity of the os uteri, and is supposed by