Reviver Of Old Jewelry

Dissolve sal-ammoniac in urine, and put the jewelry in it. for a short time; then take it out, and rub with chamois leather, and it will appear equal to new.

How To Recover Gold Prom Gilt Metal

Take a solution of borax water, apply to the gilt surface, and sprinkle over it some finely powdered sulphur; make the article red hot, and quench it in water; then scrape off the gold, and recover it by means of lead.

How To Separate Gold And Silver From Lace, Etc

Cut in faeces the gold or silver lace, tie it tightly, and boil it in soap lye ill the size appears diminished; take the cloth out of The liquid, and, after repeated rinsings in cold water, beat it with a mallet to draw out all the alkali. Open the linen, and the pure metal will be found in all its beauty.

How To Make Fluoric Acid For Etching Purposes

You can make your own fluoric (sometimes Called hydro-fluoric) acid, getting the fluor or Derbyshire spar, pulverizing it, and putting all of it into sulphuric acid which the acid will cut or dissolve. Inasmuch as fluoric acid is destructive to glass, it cannot be kept in common bottles, but must be kept in lead or gutta percha bottles.

Gold And Silver Ink

The metal leaf is ground with honey until of a fine powder; it is then washed to remove the honey, and the powder is mixed with gum water for use.

Gold Lustre For Stoneware, China, Etc

Gold, 6 parts; aquaregia, 36 parts. Dissolve, then add tin, 1 part; next add balsam of sulphur, 3 parts; oil of turpentine, 1 part. Mix gradually into a mortar, and rub it until the mixture becomes hard ; then add oil of turpentine, 4 parts. It is then to be applied to a ground prepared for the purpose.

Gilding China And Glass

Powdered gold is mixed with borax and gum water, and the solution applied with a camel-hair pencil. Heat is then applied by a store until the borax fuses, when the gold is fixed and afterwards burnished.

How To Improve The Color Of Stains

Nitric acid, 1 oz.; muriatic, ½ teaspoonful: grain tin, ¼ oz.; rain water, 2 oz. Mix it at least 2 days before using, and keep your bottle well corked.

Strong Glue For Inlaying Or Veneering

Select the best light brown glue, free from clouds and streaks. Dissolve this in water, and to every pint add ½ a gill of the best vinegar and ½ oz. of isinglass.

Compound Iron Paint

Finely pulverized iron filings, 1 part; brick dust, 1 part; and ashes, l part. Pour over them glue-water or si/to, set the whole near the fire, and, when warm, stir them well together. With this paint cover all the wood-work which may be in danger; when dry, give a second coat, and the wood will be rendered incombustible.