Manual for railroad engineers and engineering students : containing the rules and tables needed for the location, construction, and equipment of railroads as built in the United States (1883)
Vose, George L. (George Leonard), 1831-1910 · Boston : Lee and Shepard · leaf 48
lf upon the paper, andafterwards transfer it to the ground. In the above remarks we have dealt only with a single summit;but the mode of operation is the same when applied to a groupor range of hills, or indeed to any piece of ground. Running the Preliminary Line. Having by the reconnoissance found… … In following the bed of a stream we obtain generally a linelike A X C, upon the section in Fig. 13. The lowest line of thevalley, though quite moderately inclined at first, rises more andmore rapidly towards the source of the stream, as shown by thecloser approach of the contour lines on the plan.…
Railroad engineering
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