. Report on the substitution of metal for wood in railroad ties . K 9^+ — -M PART SIDE VIEW CROSS SECTION . TIE!. ■^.>%^ ^ <^m^ o o \ PL AN CROSS SECTION 1,. ^ VJ 1^ - - -XJ - 3Z —^ ^ T eVl Ion PART ELEVATION SEIVEKAC TIL HALF ELUeVATlON.

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Keywords: ., bookauthorfernowbe, bookcentury1800, bookdecade1890, bookyear1890