. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . ■8-0 Oi T,tJ Fig. 89. BURNT CLAY BALLAST.—C. B. & Q. R. R. The sections used in some of the American andforeign tunnels are shown in Figs. 90 to 186 BUILDING ^{ND EEPAIBING RAILWAYS. m \iim//////^////////////My/.

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1906