The tea has an astringent action and the tannin contained in the tea leaves is very effective.

The yerba rheuma has an astringent action and contracts the tissues, relieving the inflammation of the skin.

Tea limits perspiration, perhaps, by the astringent action of the tannin which it contains,-ofwhich more hereafter.

The salt will stop the bleeding by its astringent action and mixed with flour forms a coating over the cut.