QÖ EXTRACTS AND ReSINS.

This ExtracT: mufl be prepared under twoforms ; one SOFT, and fit for making pills:the other HARD, that it may be reducible toa powder.

R E M A R K.

This Extraft is intended for cafes where the flo-

mach is unable to bear powdered bark in a requifite

quantity ; ten or twelve grains of which, in its hard

form, are efteemed nearly equivalent to half a dratn

■ofthe bark in fubftance.

I

BXTRACTUM CORTICIS PERU-: VIANI CUM RESINA.

EXTRACTOF PeRUVIAnBaRK WITH THE

.Res in.

Take of Peruvian Bark, reduced to coarfepowder, onepound.

Rettified Spiritof Wine fourpints.Digeft it for four days, and pour off thetincture; boil the refiduum in ten pints ofdiftilled water to two ; then ftrain the tin&ureand decoclion feparately, evaporating the wa-ter