Imitation bronzes, made of spelter metal, may he restored by careful washing, polishing with soft chamois leather, and lacquering warm with best silver lacquer. Ke-bronzing must be done by electro deposit. Real bronzes may he restored by completely covering them in the sand of a brass and copper foundry, taking them out from time to time at intervals of two or three days, and rubbing them with soft chamois leather. When the desired colour is obtained they may be lacquered with colourless lacquer; or if not lacquered, they will, if rubbed from time to time, improve in colour.