1. “The Art of Electro-Metallurgy,”;GORE,1877
2. A. PHILIP, “The Electro-Plating and Electro-Refining of Metals” (being a new edition of Alexander Watt's 1855 “Electro-Deposition,” revised and rewritten by Arnold Philip). Crosby Lockwood, London, 1911.
3. Report upon the new processes introduced into the art of gilding (report by others);ELKINGTON;Compt. rend. acad. sci.,1841
4. G. R. ELKINGTON and O. W. BARRATT, Coating metals with zinc, etc. British Patent 7,742(1838).