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Preparations and Compositions. Part III.

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diseases, where it is often difficult, by other means, to pro-duce a copious sweat. The dose is from five to twenty grains,according as the patient's stomach and strength can bear it.It is proper to avoid much drinking immediately after takingit, otherwise it is very apt to be rejected by vomiting beforeany other effects are produced.

PlJLVIS JALAPJE COMPOSITUS. Ed.

Compound Powder of Jalap.Take of

Jalap root, in powder, one part;

Supertartrate of potass, two parts.Grind them together to a very fine powder.

The use of the tartrate in this preparation is to breakdown and divide the jalap; and therefore they are directedto be triturated together, and not separately.

PULVIS KINO COMPOSITUS. Lond.

Compound Powder of Kino.Take of

Kino, fifteen drachms;

Cinnamon, half an ounce ;

Hard opium, one drachm.Reduce them separately to a very fine powder, then mix

them.

This, though well known in extemporaneous prescription,is a new officinal preparation, and one which promises to beconvenient. It is anodyne and astringent, containing onepart of opium in twenty.

Pulvis opiatus. Ed.Opiate Powder.Take of

Opium, one part;

Prepared carbonate of lime, nine parts.Rub them together to a fine powder.

Pulvis cornu cekvi cum opio. Lond.Powder of Hartshorn with Opium.Take of

Hard opium, in powder, one drachm ;Hartshorn, burnt and prepared, one ounce;Cochineal, in powder, one drachm.

Ijr these powders, the opium is the active ingredient; and