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Badigeon

A cement used by operatives and artists to fill up holes and cover defects in their work. Statuaries use a mixture of plaster and free-stone for this purpose; carpenters, a mixture of sawdust and glue, or of whiting and glue; coopers use a mixture of tallow and chalk. The same name is given to a stone colored mixture used for the fronts of houses, and said to be composed of wood-dust and lime slacked together, stone-powder, and a little umber or sienna, mixed up with alum water to the consistence of paint. 2152. Armenian or Jeweler's Cement. The following is a receipt for a strong cement used by some oriental nations, 2159. Japanese Cement. Intimately for the purpose of attaching precious stones mix the best powdered rice with a little cold to metallic surfaces: Take 6 pieces of gum water, then gradually add boiling water until mastic, the size of a pea, and dissolve them a proper consistence is acquired, being par in the smallest possible quantity of 95 per ticularly careful to keep it well stirred all the cent. alcohol. Soften some isinglass in wa- time; lastly, it must be boiled for one minute ter (though none of the water must be used), in a clean sauce-pan or earthen pipkin. This and saturate strong brandy with it till you glue is beautifully white and almost transparhave 2 ounces of glue; then rub in 2 small ent, for which reason it is well adapted for 2 ounces of gluc; then rub in 2 small ent, for which reason it is well adapted for pieces of gum ammoniac. Mix the two pre- fancy paper work, which requires a strong parations at a heat. Keep well stoppered. and colorless cement. Set the bottle in hot water before using. It 2160. Curd Cement. Add 1/2 pint vineis said by the Turks that this preparation will unite two metallic surfaces, even of polished steel. gar to 1/2 pint skimmed milk. Mix the curd with the whites of 5 eggs well beaten, and sufficient powdered quick-lime sifted in with 2153. Keller's Armenian Cement for constant stirring, so as to form a paste. It Glass, China, &c. Soak 2 drachms cut resists water, and a moderate degree of heat, ising ass in 2 ounces water for 24 hours; boil and is useful for joining small pieces of marble down to 1 ounce; add 1 ounce spirit of wine, or alabaster. 2161. To Make a Cement that will wax, and stir in 1 pound red ochre (highly Resist Benzine and Petroleum. It has dried, and still warm), with 4 ounces Paris quite recently been discovered that gelatine plaster, continuing the heat a little above 2120 mixed with glycerine yields a compound liquid when hot, but which solidifies on cooling, and forms a tough, elastic substance, having much the appearance and characteristics of and stirring constantly till all frothing ceases.

Or, (for troughs), resin, 6 pounds; dried red ochre, 1 pound; calcined plaster of Paris, pound; linseed oil, 1 pound.

India rubber. The two substances united 2171. Cement for Rooms. M. Sarel, form a mixture entirely and absolutely insoi- of Paris, has made an invention which is prouble in petroleum or benzine, and the great nounced better than plaster of Paris for coatproblem of making casks impervious to these ing the walls and ceilings of rooms. A coat fluids is at once solved by brushing or painting them on the inside with the compound. This is also used for printers' rollers and for buffers of stamps, as benzine or petroleum will clean them when dirty in the most perfect manner and in an incredibly short space of time. Water must not be used with this compound.