. Building and repairing railways ... : Forming one of the series of the volumes comprised in the Revised and enlarged edition of The science of railways, . Fig. 325. VIEWS OF DIFFERENT STYLES OF BRIDLE RODS AND METHODSOF CONNECTING THEM TO THE RAIL. Frogs.—Frogs were discussed in the chapter on^^ Standards; Figs. 326 and 327 illustrate twostyles of yoked frogs. One is made by the Ram-apo Iron Works, and the other Strom frog byPettibone, MuUiken & Co. Both aim to prevent. Fig. 32f\ RAMAPO YOKED FROG. MAINTENANCE OF WAY. 441

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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1906