For ridding the bowels of tape-worms, an excellent medicine exists in
the male fern--_Aspidium felix mas_. A decoction may be made of the
fresh roots, or the root may be dried and powdered.
_Dose_, of the powdered root, from ten to thirty grains; of the
decoction, from a tablespoonful to a wineglassful, according to age. Use
to kill tape-worm.