CHAPTER XIV.

_Useful Information for the Trade._

Silversmith's Alloys 197 Silver Wares 197 Cleaning Plate 198 Imitation Silver 198 Another 198 Removing Gold from Silver Articles 198 Oxidizing Silver 198 Dipping Mixture 199 Silver Powder for Copper 199 Powder for Silver 200 To protect the Polish of Metals 200 Silver-stripping Mixture 200 Stripping Silver 201 Soft Solder 201 Soldering Fluid 201 Dissolving Silver 202 Dissolving Silver Alloy 202 Dissolving Copper 202 Dissolving Soft Solder 202 Dissolving Silver Solder 202 Dissolving Sealing-wax 202 Resist Varnish 202 Plate Powder 202 Electro-plating Soft Solder 202 Another Recipe 203 Testing Silver Wares 203 Another Test 204 Perchloride of Iron 205 Aluminium Alloy 205 New Alloy 205 Removing Gold from Silver Wares 205 Silver Plating Fluid 206 Plate-cleaning Powder 206 Solder for Aluminium 206