. Report on the substitution of metal for wood in railroad ties . HALF PLAN. CROSS SECTION . I Beam,3 13 filon(j, 3-2ir\(idle, BoHom Plaie,8Zfi. long, 9-6 *.,0-3a COBLYN TIL. 0- 3

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Keywords: ., bookauthorfernowbe, bookcentury1800, bookdecade1890, bookyear1890