Calomel.—Incompatibles: Sulphurous acid, hydrocyanic acid; alkali chlorides, bromides, iodides, sulphites, carbonates, hydrates; organic acids, lime water, etc.

Mercury Cyanide Merck.

Dose: 1/16—1/8 grn., in solut.—Extern. (gargle) 1:10000.

Mercury Imido-succinate,—see Mercury Succinimide.

Mercury Iodide, Red, Merck.

Mercury Biniodide.—Dose: 1/16—1/4 grn., in pills.

Mercury Iodide, Yellow, Merck—U.S.P.

Mercury Proto-iodide.—Dose: 1/2—2 grn. Caution: Never prescribe this with a soluble iodide, since mercury biniodide (highly poisonous) is formed!

Mercury Oxide, Black (Hahnemann), Merck.

Hahnemann's Soluble Mercury.—Grayish-black powd.; decomposes on exposure to light.—Dose: 1/4—3 grn.