Field-book for railroad engineers.
Subtitle: Containing formulas for laying out curves, determining frog angles, levelling, calculating earth-work, etc., etc., together with tables of radii, ordinates deflections, long chords, magnetic variation, logarithms, logarithmic and natural sines, tangents, etc., etc.
By: By John B. Henck ...
Publisher: D. Appleton
Published: 1877
Place of publication: New York
Language: eng
Number of pages: 243
Subjects: Railroad engineering -- Handbooks, manuals, etc; Ferrovias
Genres: Handbooks, manuals, etc.