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  Item Reference: KCLCAL-1889-1890-424

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422 EVENING CLASSES the resistance of metals to tensile transversa torsional and compressive strains these will be illustrated by actual tests being made with the large Testing Machine III -The Metals considered individually especial attention being paid to the effect of the foreign substances commonly found in each on the properties enumerated in II the origin of these impurities and the means by which and the extent to which they may be eliminated Iron and Steel -Iron Ores and Early Smelting Methods Smelting in the Blast-furnace Blast-furnace products including Spiegel-iron and Ferro-manganese Processes by which crude pig- iron may be converted into wrought or malleable iron and steel The Bloomery Refining Puddling Bessemer and Siemens Processes and their Modifications Cementation and Crucible steel Tempering of steel Malleable cast-iron Case hardening The different grades of cast-iron steel mild steel and wrought-iron The application of these Metals in Construction and in the Arts Pro- tection of iron surfaces from atmospheric deterioration Copper -The Ores of Copper and means by which they are smelted in reverberatory and blast furnaces wet and electrical methods of extraction The refining of Copper The use and value of Copper in the Arts Conductivity Copper Copper sheet wire &c Zinc -Extraction of Zinc from its ores by the Belgian and Silesian furnace methods and by electrolysis Zinc rolling and wrorking Galvanized iron Alloys of Zinc Brass Muntz's Metal Sterro Metal Manganese Bronzes &c Tin -The dressing and smelting of Tin Ores and separation from Wolfram Varieties of Commercial
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