3. ORNAMENTAL BRONZE GILDING.--This is performed by means of gold or silver, reduced to an impalpable powder, called bronze. One method of preparing it, is to levigate any quantity of gold or silver leaves on a stone, with some clarified honey; dilute the honey with clear water, that the bronze may settle; pour off the water and honey, and add fresh water to the bronze, which, after being thus thoroughly washed, may be dried on paper, and is ready for use. Another method of preparing the gold bronze, is to precipitate the gold from its solution in nitro-muriatic acid, (see 5,) by adding sulphate of iron to the solution;--then washing it, as directed above. But in general it will be found much cheaper to buy the bronze ready prepared. The ground for this work must be varnished with a mixture of copal varnish, with an equal quantity of old linseed oil; and whatever figures are to be formed in bronzing, must be represented by holes cut through pieces of paper. Lay these patterns on the work, when the varnish is so dry as to be but slightly adhesive, but not press them down any more than is requisite to keep the paper in its place. Then take a piece of soft glove-leather, moisten it a little by breathing on it, and dip it in some dry bronze, and apply it to the figures, beginning at the edges;--tap the figure gently with the leather, and the bronze will stick to the varnish according to the pattern. Thus any figure may be produced in a variety of shades, by applying the bronze more freely to some parts of the work than to others. If some internal parts of the figures require to be more distinct than others, they may be wrought by their peculiar patterns, or may be edged with dark coloured paint. In some work it may be well to extend the varnish no farther than the intended figures, in which case, any projecting or branching parts of the figures, may be drawn with a camel-hair pencil, and the patterns may in some measure be dispensed with. In either case, the work must afterwards have one or more coats of copal or shellac varnish. 4. TO ENAMEL PICTURE GLASSES WITH GOLD.--The glass must first be washed perfectly clean and dried; then damp it by breathing on it, or wet it with the tongue, and immediately lay on a leaf of gold, and brush it down smooth. When this is dry, draw any letters or flowers on the gold with Brunswick blacking, (see 51) and when dry, the superfluous gold may be brushed off with cotton, leaving the figures entire. Afterward the whole may be covered with blacking, or painted in any colour, while the gold figures will appear to advantage on the opposite side of the glass. This work may be elegantly shaded by scratching through the gold with a small steel instrument, (in the end of which many sharp points are formed,) previous to laying on the blacking. Oil paints of any kind may be substituted in the place of the blacking, but will not dry so quick.