Electro-deposition of metals ; a practical, comprehensive work comprising electroplating, galvanoplastic operations and electrotyping; deposition of metals by the contact and immersion processes; coloring of metals; lacquering; methods of grinding and polishing, and hundreds of tested formulae and trade secrets, as well as descriptions and applications of voltaic cells, dynamo-electric machines and plating shop equipment. A complete exposition of all materials and processes used in every department of the art /