. Building and repairing railways . Tram Rail with stone supports, upon which Trevithicks first locomotive ran. Fig. D. the average weight of rails per yard was about28 pounds; in 1830 (about the time the locomo-tive was introduced) the weight was increased to35 pounds per yard. As the weight of locomo- 28 BUILDING AND REPAIRING RAILWAYS. Birkenshaws Wrought-Iron Rail, A. D. S^CmfiOCH/UR. George Stephensons Fish-Belly Rail, Manchester & Liverpool

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901