CURRENT INDUSTRIAL NEWS: Corrosion and Electrical Properties of Steels; Cracking of Petroleum; New Proofing Material; Searchlight Projectors; Coke Industry of New South Wales; Iron Industry in Normandy; Vulcanization; Native and Artificial Asphalt; Electro-Metallurgy of Zinc; Shipbuilding Returns; Economic Utilization of Coal; Coke-Fuel for Electric-Power Stations; Glass Work Developments in England; New Paper-Making Material; Mineral Production of Spain; Articles Declared Contraband; Industrial Combine in Sweden; Cellulose from Spinach; British Board of Trade