Like the citrate just mentioned, this has for one ingredient citric acid, obtained from lemon or lime-juice. This is neutralized by potassium (an alkaline metal) as it may be also by magnesium ; in each case making what chemists call salt.

Citrate of potassium acts very slightly, if at all, on the bowels. It is used in solution to cool the system and promote secretion from the skin and kidneys in fever. One way of taking it is in neutral mixture (one drachm of this citrate in four fluid-ounces of water) ; of which the dose is a tablespoonful every two or three hours. Another way is in effervescent solution. (See effervescing draught.)

Cloves, Oil of. - A strong, warming aromatic, from flower-buds of the caryophyl-lus aromaticus of the East Indies. A hot tea is sometimes made of cloves, to be given in cholera-morbus.

If the oil should be taken, for colic, its dose would be not more than a drop or two, on a lump of sugar, followed by a drink of cold water. The tea may be made by pouring a teacupful of boiling water on half a I teaspoonful of cloves, covering and leaving it to stand for a few minutes. Dose, a dessertspoonful (two teaspoonfuls, or half a tablespoonful).

Oil of cloves is a good remedy for toothache in a hollow tooth. Wet a pledget of cotton well with it, and push it into the cavity of the tooth with the end of a bodkin or knitting-needle.