surcharged with acidity.


DIURETICS.


_Diuretics_ are medicines which, by their action on the kidneys,
increase the flow of urine.

[Illustration: Fig. 130.
Marsh-mallow. ]

MARSH-MALLOW (_Althea Officinalis_) is used in irritable conditions of
the urinary organs. The infusion may be drunk freely.

GRAVEL-PLANT (_Epigea Repens_), is also known as Water-pink,
Trailing-arbutus, or Gravel-root. _Dose_--Of decoction of the plant, one
to three ounces; of fluid extract, one-fourth to one-half teaspoonful.

[Illustration: Fig. 131.
Stone-root. ]

STONE-ROOT (_Collinsonia Canadensis_), is also known as Knot-root,
Horse-balm, Rich-weed, or Ox-balm. This is a mild diuretic, slow in
action, yet effective in allaying irritation of the

FOXGLOVE (_Digitalis purpurea_) slows the action of the heart, lowers
the temperature, and acts indirectly as a diuretic. It is especially
valuable in the treatment of scarlet fever and in dropsy. _Dose_--Of
infusion, one-half drachm to one-half ounce; of the fluid extract or