When the piece is finished, and quite dry, it should be brushed over with a small, round brush, about two inches in diameter, with hard bristles of an equal length, to raise up such parts of the pile as may have been flattened in the process of painting.

Toilet-sets, sofa-cushions, fancy tables, pin-cushions, and a variety of articles may be ornamented in this way.

CASTING IN PLASTER, SULPHUR, Etc.

Taking the impression of coins, medals, &c., is, independently of its utility, a most interesting amusement. This art is of considerable importance to collectors of antique coins, &c. It is often difficult, and always expensive, to purchase superior specimens, of which, however, exact models may be obtained by casting, without the slightest injury to the originals. The mould is made in the following manner:—Take a strip of paper, a quarter or third of an inch wide; roll it twice tight around the rim of the coin, or gem, of which a cast is intended to be taken, and fasten the end with very stiff gum-water, which will hold it instantly. Rub a very little oil, with a camels-hair pencil, over the coin, in order to prevent the plaster from sticking; then mix some fine plaster of Paris, with as much water as will make it almost as thick as treacle; apply it quickly to the coin, on which it will be held by the paper rim. It sets almost instantly, and may be taken off in a few hours; but the longer it remains undisturbed the better. The mould which is thus obtained is the reverse of the coin; that is, the impression is concave, like a seal. When the moulds are so dry that they will not wrinkle a piece of paper laid flat upon the surface, let them be well saturated with the best boiled linseed oil, placing the moulds with their surface upward, that the whole of the oil may be absorbed. They must be covered from dust, and nothing should touch their surface, lest they suffer injury. Moulds, well prepared in this manner, and dried about two days after being oiled, will stand a long time, for the casting of either plaster or sulphur. When used, either Florence oil or a little hog’s lard (the latter to be preferred) should be applied very tenderly over the mould with a little of the finest cotton wool, and the cotton wool, without lard, afterwards passed lightly over the surface, to leave as little as possible of the unctuous matter upon the mould, that the casts may be the finer. Put paper around them, as was before done to the coin; pour on plaster in the same manner, and a fac-simile of the original will be produced.

Good casts may be made of sulphur, melted in an iron ladle, either pure, or colored with a little red lead or vermilion powdered and stirred up with it. The moulds and casts are made in the same manner as with plaster of Paris, only that the sulphur must be poured on the mould when hot, and water, instead of oil, must be used, to prevent adhesion. Sulphur makes the best moulds for plaster casts, and vice versa—as similar substances can seldom be prevented, by either water or oil, from adhering, in some degree, to each other. Plaster cannot be used twice; that is, old or spoiled casts cannot be powdered and again employed; for the moment the material is moistened, being a species of lime, it is no longer plaster, without being reburnt.

Another way of making casts of almost any color, is with a strong solution of isinglass; it must be used when quite hot; and it is so thin that a box, exactly fitting the rim of the coin, is required, otherwise it will escape. It may be colored with saffron, wood, &c.

Very beautiful impressions may be taken by pouring melted wax upon the metal, which comes off easily when the wax and metal are perfectly cold; but any one attempting this had better try it first upon a penny, or other coin of little value.

Impressions may also be taken in wax, which, for this purpose, should be rendered pliable by kneading it with the hand before the fire, a little oil having been previously mixed with it. When softened to about the consistency of putty, lay it and press it close down on the coin, the form of which will then be perfectly obtained.