The vomiting of blood is not of ordinary occurrence and may be the result of many causes. If due to a recent .injury or breaking down of the tissues, it will be bright red in color, if the blood is coming from the vens it will be of darker hue, and if it has remained in the stomach some time it will be of coffee color. In treating give the stomach at least twenty-four hours' rest or feed only milk and water, and every three hours give from a teaspoonful to a tablespoonful of the following: Tincture thalaspi twenty-four drops, liquor bismuth one-half ounce. Water to make three ounces.