Balmony (Chelone Glabra). This is also tonic and anthelmintic, and is valuable in debility, dyspepsia, jaundice, and hepatic affections. It also is known as Snake-head. Dose—Of the infusion, one to two ounces; of the concentrated principle, Chelonin, from half to one grain.

Male Fern (Aspidium Filix Mas). Male Fern is the anthelmintic which is considered especially effectual in removing the tape-worm. Dose—Of the powder, one to two drachms, given morning and evening in syrup, followed by a brisk cathartic. The dose of the tincture of the buds in ether is from eight to thirty drops.

Poplar (Populus Tremuloides). The White or Aspen Poplar is a common tree, and contains active principles termed Populin and Salicin, both of which are tonic. An infusion of the bark is a remedy for worms. Dose—Of the tea made from the bark, one to four ounces; of Populin, from one-half to two grains.

ANTIPERIODICS.

It is well understood that malarial diseases are characterized by a periodicity which indicates their nature. Antiperiodics prevent the recurrence of the periodic manifestations, and hence their name.

Quinine (Sulphate of Quinia). Quinine is a tonic, febrifuge, and antiperiodic. It should generally be administered during the intervals between the febrile paroxysms. It is beneficial also in all diseases accompanied by debility. The dose varies from one to six grains according to indications. Frequently it is given in much larger quantities, but we cannot advise such for domestic use.

Prussian Blue (Ferri Ferrocyanidum). Ferrocyanide of Iron is an excellent tonic and antiperiodic remedy, and often is combined with quinine. Dose—From two to five grains.

Boneset (Eupatorium Perfoliatum), or Thoroughwort. This is tonic, diaphoretic, aperient, and possesses some antiperiodic properties; the warm infusion is emetic. Dose—Of the infusion, one to four ounces; of the fluid extract, from half to one teaspoonful; of the active principle, Eupatorin, one to three grains.