Field-book for railroad engineers. Containing formulæ 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 John B. Henck ...

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Title
Field-book for railroad engineers. Containing formulæ 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 John B. Henck ...
Author
Henck, John Benjamin, 1816-1903.
Canvas
Page 236
Publication
New York [etc.]: D. Appleton & company,
1854.
Subject terms
Railroad engineering -- Handbooks, manuals, etc.

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"Field-book for railroad engineers. Containing formulæ 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 John B. Henck ..." In the digital collection Making of America Books. https://name.umdl.umich.edu/akr5096.0001.001. University of Michigan Library Digital Collections. Accessed April 18, 2024.
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