Mr. Watt. 1. To the crystallized nitrate of silver obtained by dissolving 1 oz. of fine silver in nitric acid, add 3 pints of cold distilled water to dissolve it. Precipitate with common salt. Wash well. Dissolve the chloride in just enough of the strong solution of cyanide of potassium. Filter several times, then add distilled water to 1 gallon. This is excellent for a dead white, or to plate cleaned figures, or clock-dials, which only require to be scratch-brushed first. Or if worked weaker, with a feeble battery, and a small surface of anode exposed, a thick layer is obtained, which will bear burnishing.

2. Dissolve as much nitrate in the same quantity of distilled water. Add strong solution of cyanide of potassium till there is no further precipitate - (not enough to re-dissolve this). Wash the precipitated cyanide several times with pure water. Add now enough strong solution of cyanide of potassium to dissolve it, and make up the solution to 1 gallon. Filter before using. When it is desired that the articles should come out with a bright appearance, a little bisulphuret of carbon is added to the solution.