Metal-work; a handbook for teachers and students (1914)
Adam, Hugh M. [from old catalog], Evans, James Humphrey, [from old catalog] joint author · New York, Longmans, Green and co.; London, E. Arnold · leaf 168
reand slowly heated, to insure an even heat right through thematerial. When welding heat is attained, blue-white sparksare emitted from the fire and from the metal. The bars must be quickly removed from the fire to theanvil, and after a slight jerk, to rid them of any foreign matter. FORGE WORK 151…
Metal-work
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