CHAPTER XI.--GALVANISM AND ELECTRO-PLATING 266

A FASCINATING USE OF ELECTRICITY -- A SIMPLE ELECTRO-PLATING OUTFIT -- THE SULPHATE OF COPPER BATH -- HOW TO MAKE THE TANK AND OTHER APPARATUS -- A VARIETY OF BEAUTIFUL AND USEFUL RESULTS -- EXPLANATIONS OF VARIOUS BATTERIES -- THE CLEANSING PROCESS -- THE PLATING-BATH -- SILVER-PLATING -- GOLD-PLATING -- NICKEL-PLATING -- FINISHING -- ELECTROTYPING -- PRACTICAL DETAILS OF INTERESTING WORK