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Author: Henck, John Benjamin, 1816-1903.
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 ... tangents. Etc., etc. By John B. Henck ...
Publication info: Ann Arbor, Michigan: University of Michigan Library
2005
Availability: Where applicable, subject to copyright. Please go to http://quod.lib.umich.edu/t/text/accesspolicy.html for more information.
Print source: 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 ... tangents. Etc., etc. By John B. Henck ...
Henck, John Benjamin, 1816-1903.

New York, London: D. Appleton and company, 1871.
URL: http://name.umdl.umich.edu/ajr2365.0001.001
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