concentrated principle, Geranin, one to two grains.

[Illustration: Fig. 123.
Bugle-weed. ]

[Illustration: Fig. 124.
Hardhack. ]

HARDHACK (_Spirea Tomentosa_), Spirea, or Meadow Sweet. The stem and
leaves are used. It is a tonic and an astringent, and is used in
diarrhea and cholera-infantum. _Dose_--Of the infusion, one-half to one
ounce; of the fluid extract, three to six drops.

BUGLE-WEED (_Lycopus Virginicus_). This is variously known as
Water-hoarhound and Water-bugle. It is sedative and tonic, as well as
astringent, and is employed in hemorrhages and in incipient phthisis.
_Dose_--Of the infusion, one to two ounces; of the fluid extract,
fifteen to twenty-five drops; of the concentrated principle, Lycopin,
one-half to one grain.

[Illustration: Fig. 125.
Canada Fleabane. ]

CANADA FLEABANE (_Erigeron Canadense_). The leaves and flowers are used.
This plant, sometimes known as Colt's-tail, Pride-weed, or Butter-weed,
is astringent, and has been efficiently employed in uterine hemorrhages.
_Dose_--Of the infusion (two ounces of the herb to one pint of water),
one to two ounces; of the oil, five to ten drops on sugar, repeated at
intervals of from one to four hours.