Ink (Black). Take eight ounces of Aleppo galls in course powder ; four ounces of logwood in their chips; four ounces of sulphate of iron ; three ounces of gum-arabic in powder; one ounce of sulphate of copper; and one ounce of sugar candy. l!oil the galls and logwood together in twelve pounds of water for one hour, or until half the liquid has evaporated. Strain the decoction through a hair-sieve or cloth, then add the other ingredients ; stir the mixture until the whole is dissolved, more especially the gum ; after which leave it to parboil for twenty-four hours; then decant the ink, and preserve it in bottles of glass or stone ware, well corked.