1713. Take half a pound of turmeric, and a quarter of a pound of pearlash; boil in a gallon of water. When taken from this, the bone must be again dipped in the alum solution.
1714. Horn must be treated in the same manner as bone and ivory for the various colors given under that heading.
1715. In Imitation of Tortoise-Shell.—First steam and then press the horn into proper shapes, and afterward lay the following mixture on with a small brush, in imitation of the mottle of tortoise-shell.
1716. Second.—Take equal parts of quick lime and litharge, and mix with strong soap-lees; let this remain until it is thoroughly dry, brush off, and repeat two or three times, if necessary.
1717. Such parts as are required to be of a reddish brown, should be covered with a mixture of whiting and the stain.