Glycyrrhizae Radix. Liquorice Root. The peeled root and subterranean stem of Glycyrrhiza glabra. In long cylindrical pieces, when peeled, yellow, with a nearly smooth, fibrous surface; odour faint; taste sweet and characteristic. It contains a glucoside, glycyrrhizin, which is its chief sweet principle and is present as a calcium salt. The acid glucoside is insoluble in water and hence is precipitated by acids.

1Extractum Glycyrrhizae. A soft aqueous extract.

1Extractum Glycyrrhizae Liquidum. Dose, 30 - 60 min.; 2 - 4 c.c. An aqueous extract to which alcohol is added.

3Pulvis Glycyrrhizae Compositus. Dose, 60 - 120 grs.; 4 - 8 gms. - 16; Senna 16; Fennel 8; Sublimed Sulphur, 8; Sugar, 48. 10 grs. Senna and 5 grs. Sulphur in 60 grs. powder.

Gossypium. Cotton. The hairs of the seeds of Gossypium Bar-badense.

Granati Cortex. Pomegranate Bark. The dried bark of the stem and root of Punica Granatum. Usually in curved irregular or channeled pieces, 2-4 inches long, 1/2 - 1 inch wide: the outer surface of the root bark rough yellowish-grey, the stem bark smoother, the inner surface is yellow tinged with brown: odourless: taste astringent and bitter. The important active principle is the alkaloid, pelletierine.

Decoctum Granati Corticis. Dose, 1/2 - 2 fl. oz.; 15 - 30 c.c. - 20; boiled in 100 of Water.

Guaiaci Lignum. Guaiacum Wood. The heart wood of Guaiacum officinale or sanctum. Dark greenish-brown, dense, heavier than water; odour when heated aromatic; taste acrid.

Guaiaci Resina. Guaiacum Resin. Dose, 5 - 15 grs.; 3 - 10 dgms. The resin obtained from the bark of Guaiacum officinale. Usually in arge masses but sometimes in tears; brittle in thin splinters transparent, varying in colour from yellowish-green to reddish-brown; odour, more apparent when warmed, balsamic; taste slightly acrid.

Incompatibles, a change in colour to blue is induced in alcoholic solutions by nitric acid, potassium permanganate, ferric chloride, spirit of nitrous ether, and other oxidizing agents; sulphuric acid turns it reddish, and mucilage of acacia blue.

3Mistura Guaiaci. Dose, 1/2 - 1 fl. oz.; 15 - 30 c.c. - 2.5; Sugar, 2.5; Tragacanth, 0.4; Cinnamon Water, 100.

1Tinctura Guaiaci Ammoniata. Dose, 30 - 60 min.; 2 - 4 c.c. - 20; Oil of Nutmeg, 0.31; Oil of Lemon, 0.21; Strong Solution of Ammonia, 7.5; Alcohol to 100.

2Trochiscus Guaiaci ResinŠ. 3 grs. with the Fruit Basis.

Haematoxyli Lignum. Logwood. The heart wood of Haematoxy-lon campechianum. Hard, heavy, dull orange to purplish-red externally, internally reddish-brown; odour slight and agreeable; taste sweetish and as tringent. Contains tannic acid and a colouring matter, haematoxylin Incompatibles, mineral acids, metallic salts, especially ferric, lead and antimony, lime-water.

Decoctum Haematoxyli. Dose, 1/2 - l fl. oz.; 15 - 30 c.c. - 5; Cinnamon Bark, 0.8; boiled with water, and made up to 100.