Chapter 229

gallon--and then immerse for half an hour in the following mixture:--Take half a pound of turmeric, and a quarter of a pound of pearl-ash; boil in a gallon of water. When taken from this, the bone must be again dipped in the alum solution.

[AVOID YOURSELF WHAT YOU THINK WRONG IN YOUR NEIGHBOUR.]

1422. Horn.

Horn must be treated in the same manner as bone and ivory for the various colours given under that heading.

1423. Imitation of Tortoiseshell.

First steam and then press the horn into proper shapes, and afterwards lay the following mixture on with a small brush, in imitation of the mottle of tortoiseshell:--Take equal parts of quicklime 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. Such parts as are required to be of a reddish brown should be covered with a mixture of whiting and the stain.

1424. Iron. _Black, for ships' guns, shots, &c._

To one gallon of vinegar add a quarter of a pound of iron rust, let it stand for a week; then add a pound of dry lampblack, and three-quarters of a pound of copperas; stir it up at intervals for a couple of days. Lay five or six coats on the gun, &c., with a sponge, allowing it to dry well between each. Polish with linseed oil and soft woollen rag, and it will look like ebony.

1425. Paper and Parchment._Blue._

i. Stain the material green with the verdigris stain given in No. 1433, and brush over with a solution of pearlash--two ounces to the pint--till it becomes blue.

ii. Use the blue stain for wood.

1426. Paper and Parchment. _Green_ and _Red._

The same as for wood.

1427. Paper and Parchment. _Orange._

Brush over with a tincture of turmeric, formed by infusing an ounce of the root in a pint of spirit of wine; let this dry, and give another coat of pearlash solution, made by dissolving two ounces of the salt in a quart of water.

1428. Paper and Parchment._Purple._

i. Brush over with the expressed juice of ripe privet berries.

ii. The same as for wood.

1429. Paper and Parchment._Yellow._

i. Brush over with tincture of turmeric.