Home > Field-book for railroad engineers. : Circular and parabolic curves,turnouts,vertical curves,levelling,computing earth-work,transition curves on new lines and applied to existing lines,together with tables of radii,ordinates,long chords,logarithms,logarithmic and natural sines,tangents,etc. ,and a metric curve table.
Field-book for railroad engineers. : Circular and parabolic curves,turnouts,vertical curves,levelling,computing earth-work,transition curves on new lines and applied to existing lines,together with tables of radii,ordinates,long chords,logarithms,logarithmic and natural sines,tangents,etc. ,and a metric curve table.
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