Context

Context of American and European railway practice in the economical generation of steam, : including the materials and construction of coal-burning boilers, combustion, the variable blast,vaporization, circulation, superheating, supplying and heating feed-water, etc., and the adaptation of wood and coke-burning engines to coal-burning; and in permanent way including road-bed, sleepers, rails, joint fastenings, street railways, etc., etc.
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