— Paints, [492]

Gold-plate Alloys, [67]

Gold Plating, [575]

— Printing on Oilcloth, [379]

— Purple, [383]

— Recovery of Waste, [381]

— Reduction of Old Photographic, [535]

— Renovator, [199]

— Solders, [434], [661]

— Testing, [432]