Convallarin. C34H62011

Glucoside of above.

Crystalline, soluble in alcohol. Purgative, but seems of no value; resembles saponin. Dose, 3 to 4 grains.

Copper Arsenite

A valuable intestinal remedy in cholera, diarrhoea, and dysentery, in mild and severe cases, especially before the inflammatory stage. In small doses it has no toxic effect, but stimulates the intestines to repel injurious matter. Dose : Dissolve 1/100 grain in 4 ounces of water, and sip a teaspoonful every ten minutes. For a child, use 8 ozs. of water.

Coptis Teeta

India. N. 0. Ranunculacea.

The rhizome contains large yellow, woody bundles. A pure tonic bitter, containing 8 % of Berberine.

Coptis Trifoliata

Gold Thread. U. States and Arctic America.

A small herb: its rhizome is pure bitter, like Quassia; contains Berberine.

Cornus Florida

Dogwood. N. America. N, 0. Gomacea.

Root bark; a tonic febrifuge, used in United States as fluid extract: dose, 20 to 60 minims.

Corydnlin

From Corydalis formosa. Turkey Pea. N. 0. Fumariacae.

A resinoid, prepared from the root of this plant.

Tonic alterative; dose: 1 to 3 grains. (Turkey Corn, also employed, is Corydalis Canadensis.)

Cotyledon Umbilicus

Indigenous. N. 0. Crassulaceee.

Externally to destroy warts, and internally in hysteria and epilepsy. The solid and fluid extracts are in use.

Coumarin. C9H602

From Tonquin bean, Guiana. N. 0. Leguminosce.

The odorous principle of the fruit of Dipterix odorata. - Tonquin bean (about 1 %). Crystallizes in shining colourless needles, with fragrant odour: soluble in alcohol. Now produced artificially. Covers odour of iodoform, in proportion of 2 grains to the drachm.

The odoriferous principle of the Tonquin bean is found also in Asperula odorata (woodruff), Melilotus officinalis, etc. The Tonquin bean is called Cumaru in the Brazils.