. Handbook of railroad construction; for the use of American engineers. Containing the necessary rules, tables, and formulæ for the location, construction, equipment, and management of railroads, as built in the United States .. . 30 HANDBOOK OF RAILROAD CONSTRUCTION. Suppose that by doing so we have obtained the plan andprofih* shown in figs. 21 and 22, where A a a B is the pro-file of Ac clB, on the plan. Thelowest line of the valley though Fi. 22. Yis.

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Keywords: ., bookcentury1800, bookdecade1850, booksubjectrailroadsdesignandco