and shielding
the sore while its medicinal property is in the _Cuprum Aceticum_
diluted as above. It is quite useful for any ill conditioned ulcer.

Acetic Acid

is a most efficient remedy applied to old irritable _varicose ulcers_ on
the limbs of females who have suffered from _Phlegmasia Dolens_, (milk
leg.)

It may be applied as a wash to the part once or twice a day at the
strength of 1-20th of the acid with water, or in the form of good cider
vinegar.

The manufactured vinegar of the cities does _not_ usually contain acetic
acid.

ARUM TRIPHYLLUM is a specific to allay the inflammation and excessive
pain in _scrofulous swellings_ of the neck, (_Kings Evil_.) The pure
drug in powder, wet with warm water, or the green root bruised so as to
form a poultice, is to be applied over the swelling. It soon discusses
the swelling, or if pus has already formed, allays the the pain, and
brings the pus to the surface, and if continued, disposes it to heal
rapidly.

BAPTISIA TINCTORIA applied as a poultice either in the powdered drug, or
with some other substance wet with the infusion or _tr._, _arrests
gangrene_ in a short time. It is especially useful for threatened or
actual gangrene arising from _lacerated_ wounds or scalds with wounds,
as in accidents connected with the explosion of steam boilers; when we
often have scalds and lacerations in the same wound.

HYDRASTUS CANADENSIS used as a gargler in a putrid state of the throat
in malignant _Scarlet fever_, arrests the destructive process _at once_.

It is also a most excellent application for inflamed eyes in the second
or sub-acute stage.

* * * * *

PROPHYLACTICS.

(_Preventives of Disease._)

TO PREVENT SCARLET FEVER

Give Belladonna at the 3d attenuation, three to six pellets, according
to the age of the child, every morning, during the prevalence of the
epidemic. This is for the common or mild form of the disease. If the
prevailing epidemic is of the _malignant_ kind, producing fatal
ulcerations of the throat, give _Bell._ once in two days and _Mercurius
Corrosivus_ at the 3d attenuation on the alternate day.

While _Bell._ is a very certain preventive of the common eruptive
Scarlatina, it is not as certain to prevent the _malignant_ form. Though
it renders the latter much more mild, the _Merc. Cor._ is necessary to
ward it off entirely, or so modify as to divest it of the dangerous
features.

TO PREVENT YELL