THE DEVELOPMENT OF f ARMOUR, 
475 
September 15th, 1895. After referring to the adoption of nickel and 
chromium by St. Chamond and nickel by the United States, the 
difficulties of overcoming liability to blow-holes and blisters in the Krupp pro- 
Krupp process are mentioned, also the difficulties experienced with cess 
thick plates. The eventual production of plates with hard faces ^“ 95 ^ 
graduated into tough foundations is reported and the results of 
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