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To Silver Stucco and Pottery

Stucco and pottery may be silvered by the same process as No. 3628, but before being submitted to the operation they should be covered with a coat of stearine or varnish. 3631. To Silver Glass, Crystal, or Porcelain. To silver glass, crystal, or porcelain, commence by washing thoroughly (see No. 3621) the object with distilled water, and with alcohol, and then operate as has been said with the mixture. (See No. 3626.) Objects with a plane surface should be placed in a horizontal position, and the liquor poured upon them. (See Nos. 3618, &c.) When mirrors are to be silvered, the plates of glass may be disposed in a vertical position; place | containing 2 per cent. of muriatic acid, and them two and two face against face, in troughs subsequent scrubbing for + hour with a wire of gutta percha, taking care to prevent all brush and sand, then washing in water until contact with the sides; then fill with the li- all traces of acid are removed. It is then quid. Precipitation of silver commences in a quarter of an hour, and at the end of a few hours the operation is finished. When dry, coat the silvered surface with varnish.