Silver.—Silver leaf treated in precisely the same manner gives a silver ink. Both these inks may be polished with ivory when dry.
Black.—Three ounces crushed gall-nuts, two ounces crystallized sulphate of iron, two ounces gum-arabic, and twenty-four ounces water.
White.—Fine French zinc-white, or white lead, rubbed up with gum water to the proper consistency.
Fireproof Ink.—Fireproof ink, which can be used either for writing or printing:—Copal 12 grains, graphite 22 drachms, sulphate of iron 2 drachms, tincture of nut-galls 2 drachms, and sulphate of indigo 8 drachms; these are thoroughly mixed and boiled in water, and the ink so obtained is said to be both fireproof and insoluble in water. When any other colour than black is desired, the graphite is replaced by any other mineral pigment of the required colour.
Printing Ink Varnish.—Printing ink varnish is made by adding 4 oz. of boiled linseed or neat’s-foot oil to 6 oz. of yellow rosin.
Lithographic Transfer Ink.—Three parts gum copal, 5 parts wax, 5 purified tallow, 4 soap, 5 shellac, 5 mastic, and one-half part sulphur. The copal is to be melted in a copper vessel, mixing in a little sweet oil, add the wax and tallow, and when these are well melted, light the mass and throw in the soap, well dried and cut in small pieces, then the shellac and mastic. The flame is to be increased by the addition of the flowers of sulphur, and so a perfect mixture of the copal with the other substances will be attained. The flame is to be alternately kindled and extinguished till the whole mass is reduced to one-fourth of its former bulk.