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adjustable electrodes ampere anthracite arched roof British Aluminium Company Bulletin on—by John Calendar years 1907 Canada CARBON ELECTRODES charcoal blast furnace coal coke conducting cooling cost crucible crushing plant descending charge diﬁerent Domnarfvet economic edge-runners electric furnaces electric horse-power electric shaft furnace electric smelting electro-thermic process Eugene Haanel experimental trials ﬁg ﬁgures ﬁneness ﬁrst ﬂows Hastings county heat inventors Iron Ore Deposits kiln kronors labour Lanark county lining long ton M.E. Iron machinery Magnetometric Survey melting chamber Mines Branch modiﬁed multi-phase number of adjustable on—by John McLeish Ontario—by B. F. Haanel operation ovens Peat Bog Peat Expert Ph.D phases pig iron cast pig iron produced Plate Production of Iron production of pig raw material reduction reﬁning Report on—by S. A. Anrep saggers Sault Sault Ste SHORT TON slag Sweden switchboard tapping temperature tension Texada Islands three-phase tion tons transformers trial run tuyéres two-phase Vancouver island volts