(Hiera Picra).

Amygdalae Compositus (Almonds Comp.) - A mixture of Sweet Almond, Sugar, and Acacia, in fine powder; 180 grains (10 Gm.), triturated with Water, yield about 4 fluid-ounces (119 Cc.) of Emulsum Amygdalae.

Anticatarrhalis (Catarrh Snuff.) - Hydrochlorate of Morphine, 1 part; Acacia, 60 parts; Subnitrate of Bismuth, 180 parts, in fine powder.

Catechu Compositus (Compound Powder of Catechu, Ph. Br.). - Catechu, 4 parts; Kino, 2 parts; Krameria, 2 parts; Cinnamon, 1 part; Nutmeg, 1 part.

Cretae Aromaticus. - A mixture of Cinnamon, Saffron, Nutmeg, Cloves, Cardamon, prepared Chalk, and Sugar.

Cretae Aromaticus cum Opio. - Aromatic Powder of Chalk, with 1 grain (0.06) of powdered Opium, in 40 grains (1.5) of the mixture. Official in the Ph. Br.

Hydrargyri Chloridi Mitis et Jalapae (Calomel and Jalap). - A mixture of Mild Chloride of Mercury, 10 grains (0.6), and Jalap, 20 grains (1.3).

When " Calomel and Jalap" is prescribed for an adult, without any specification of quantities, the N. F. recommends that the above mixture be dispensed as one dose.

Iodoformi Compositus (Iodoform and Naphthalin). - A mixture of Iodoform, 2 parts; Boric Acid, 3 parts; Naphthalin, 5 parts; with Oil of Bergamot, in fine powder.

This powder is used in many cases where a diluted preparation of Iodoform, for external purposes, is desired. The odor is masked both by the Oil of Bergamot and by the Naphthalin.

Kino Compositus. - A mixture of Kino and Cinnamon, with 1 grain (0.06) of Powdered Opium in each 20 grains (1.3).

Myricae Compositus (Composition Powder). - A mixture of Bayberry, Ginger, Capsicum, and Cloves.

Pancreaticus Compositus (Peptonizing Powder). - A mixture of 20 parts Pancreatin and 80 parts Sodium Bicarbonate; 25 grains will peptonize 1 pint of milk.

Pepsini Compositus (Pulvis Digestivus). - A mixture of Pepsin, Pancreatin, Diastase, Lactic and Hydrochloric Acids, with Milk Sugar to represent the gastric juice.

Rhei et Magnesiae Anisatus (Compound Anise Powder.) -A mixture of Rhubarb, Heavy Magnesia, and Oil of Anise. Talci Salicylicus (Salicylated Powder of Talcum). - A mixture of Talcum with 3 per cent. Salicylic Acid and 10 per cent. Boric Acid, in fine powder.

Powders are usually directed to be divided into papers (char-tulce); thus, for example, a formula for a prescription would be -

Misce cum trituratione et in chartulis No. x. divide.

Encapsuling powders by filling them in gelatin capsules is a very convenient and elegant form of administration. No mixture which is desired to be given in the form of powder, however, should be made into a mass for facilitating the encapsuling process -a custom too frequently adopted. Many substances, especially Bismuth Subnitrate and Calomel, become exceedingly hard and quite insoluble when made into a mass. No dispenser should assume the prerogative of changing the form of medication prescribed.