Transactions . i)Ia^ra?ns fi^om Jiails jJW Zeng-/A o/^-j JS/j^y^://^^ o/ 10. , Pa., Not., 1877. ^n ich f)Toke\ 07 cruskecl i?v seri-uc THE CHEMICAL COMPOSITION AND PHYSICAL PROPERTIES OF STEEL RAILS. JPJjAIE J J J. By C. B. DUDLEY, , Chemist, Penn. R. R. Co.

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Keywords: ., bo, bookcentury1800, bookdecade1870, booksubjectmineralindustries