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Red Cement

The red cement used for uniting glass to metals is made by melting 5 parts black resin with 1 part yellow wax, and then stirring in gradually 1 part red ochre or Venetian red, in fine powder, and previously well dried, This cement requires to be melted before use, and it adheres better if the objects to which it is applied are warmed. 2221. Cement for Fastening Instruments in Handles. A material for fastening knives or forks into their handles, when they have become loosened by use, is a much- er bees' wax, 1 ounce; resin, 1/2 ounce; and needed article. The best cement for this purpose consists of 1 pound resin and 8 ounces sulphur, which are to be melted together and either kept in bars or reduced to powder. 1 part of the powder is to be mixed with 1/2 a part of iron filings, fine sand, or brick-dust, and the cavity of the handle is then to be filled with this mixture. The stem of the knife or fork is then to be heated and inserted into the cavity; and when cold it will be found firmly fixed in its place. 2222. Cement for Fastening Iron to Stone. Glycerine and litharge stirred to a paste, hardens rapidly, and makes a suitable cement for iron upon iron, for two stone surfaces, and especially for fastening iron to