Calendar: 1893-1894 Page 490

488 EVENING classes METALLURGY Day and Hour of ttendance- Wednesday front to Fee £1 Us 6d This Course of Lectures established by the aid of the Cit and Guilds of London Institute is designed for all those wh in any way have to do practically with the extraction an more especially with the applications of metals It treats the methods by which metals are obtained from their ore and the means by which they are rendered suitable for thi various requirements of the Arts The following subjects are dealt with as far as the tim available permits -General considerations concerning the Principles Metallurgy EI -The Chemical Physical and Mechanical Properties oi Metals and Alloys and the influence of foreign substances and of different methods of mechanical treatment upon these properties The behaviour of the metals when exposed to the action of Air Water &c The various mechanical tests for determining the resistance of metals to tensile transverse torsional and compressive strains 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