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Recently, the method of applying Dox‐Anode zinc silicate to a preheated surface has been advanced and a new system for applying zinc to metal, rendering the surface phosphated and primed, is now available. This system eliminates the usual phosphating operation with, it is claimed, better results. This hot‐spray system requires no de‐rusting, the adherent rust forming a key to receive the zinc silicate coating.

New Welding Institute President. New president of the Institute of Welding is E. SEYMOUR‐SEMPER, managing director of Hancock & Co. (Engineers) Ltd. He is also this year's president of the British Acetylene Association.

I TAKE it as a great compliment to be asked to open this Exhibition, the Corrosion and Metal Finishing Exhibition. Additionally, I regard the occasion as one on which the President of the Society of Chemical Industry, who happens at this time to be myself, can very usefully and indeed very appropriately take a great interest.

From November 29 to December 2 the Empire Hall at Olympia, London, will be given over to what will probably be the world's largest display of products, processes and services for use in the prevention or limitation of corrosion. Over 120 stands will be shared by 94 exhibitors, each contributing in some way or in many ways to this cause. The extensive preview in the following pages is divided into sections. However, the grouping is general and reflects only one aspect of a company's activities. Therefore a complete examination of items is recommended.