Geranin, or Geraniin. From Geranium maculatum. Astringent.—Dose, 1 to 5 gr.

Hamamelin. From Hamamelis Virginica (Witch hazel). Astringent.—Dose, 5 grains.

Hydrastin. From Hydrastis Canadensis. Tonic.—Dose, 3 to 5 grains. This must not be confounded with the alkaloid Hydrasta.

Iridin. From the Blue flag. Alterative, sialagogue, anthelmintic.—Dose, 12 to 5 gr.

Inglandin. From Butter-nut. Given in chronic hepatic disorders and constipation.—Dose, 2 to 4 gr.

Leptandrin. From Leptandra Virginica. Given in liver affections, chronic dysentery, diarrhœa, and typhus.—Dose, 2 to 4 gr.

Lycopin. From Lycopus Virginicus. Given in hæmorrhage, diabetes, and dysentery.—Dose, 2 to 3 grains.

Myricin. From Myrica cerifera. Stimulant, astringent, and antispasmodic.—Dose, 2 to 10 grains.

Populin. From Populus tremuloides. Tonic and febrifuge.—Dose, 4 to 8 grains.

Prunin. From Wild Cherry Bark. Stimulant, tonic, and expectorant.—Dose, 1 to 2 gr.