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Another (Melt together oz of brass)

Melt together 1 oz. of brass with 1½ or 2 oz. of copper, fused under a coat of charcoaldust. Oréide, a New Brass.

M. M. Mourier and Vallent, of Paris, have succeeded in making an alloy which imitates gold sufficiently near to merit the name Oréide. The properties are as follows: Pure copper, 100 parts, by weight; zinc, 17; magnesia, 6; sal ammoniac, 3.6; quicklime, 1.80; tartar of commerce, 9. The copper is first melted, then the magnesia, sal ammoniac, lime and tartar in powder, little by little; the crucible is briskly stirred for about an hour, so as to mix thoroughly, and then the zinc is added in small grains by throwing it on the surface and stirring until it is entirely fused; the crucible is then covered and fusion maintained for about 35 minutes; the crucible is then uncovered, skimmed carefully and the alloy cast in a mould of damp sand or metal. The oréide melts at a temperature low enough to allow its application to all kinds of ornamentation; it has a fine grain, is malleable, and capable of taking the most brilliant polish; when, after a time, it becomes tarnished from oxidation, its brilliancy may be restored by a little acidulated water. If the zinc is replaced by tin, the metal will be still more brilliant. Prince's Metal.

Melt together 3 oz. of copper, and 1 oz. of zine; or, 8 oz. of brass and 1 oz. of zinc.