POWDERS.

149

Or

Bicarbonate of Potass, one ounceand 1G0 grains ;Keduce the acid and either bicarbonate se-parately to fine powder, and divide eaoh intosixteen powders ; preserve the acid and al-kaline powders in separate papers of differentcolours.

Pulvis ipecacuanhae compositus.Take of Ipecaeuan, in powder and

Powder of Opium, of each, one

ounce;Sulphate of Potass, eight ounces ;Trituratc them together thoroughly.

Pulvis jalapae compositus.

Take of Jalap, in powder, one ounce;

Bitartrate of Potash, two ounces ;Trituratc them to a very fine powder.

Pulvis riiei compositus.Take of Magnesia, one pound ;

Ginger in fine powder, two ounces ;Bhubarb in fine powder, 4 ounces ;Mix them thoroughly, and preserve thepowder in well-closed bottles.

Pulvis salinus compositus.Take of Pure Muriate of Soda, and

Sulphate of Magnesia, four ounces ;n2