Silver is deposited in a dull or matt condition, which needs brushing and polishing to become bright. For a solution to give bright deposit s in special parts, place 3 fluid oz. of carbon bisulphide in a Winchester botlle, and add:3 pt. of old silver-plating solution, and shake well. Then add enough strong solution of potassium cyanide nearly to till the bottle, and set it aside in a cool dark place for twenty-four hours. Use 1 fluid oz. of this mixture to each 10 gal. of the ordinary plating solution, and stir well before putting in the articles. A current at from 2 to 4 volts pressure will be suitable. Too much brightening solution will make the work patchy and brown. Some platers use a plating solution strong in free cyanide to put on the first or striking coat, and finish off in one containing less cyanide. Striking solutions are not always necessary.