Field-book for railroad engineers. 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
Henck, John Benjamin
Sold by Livresse, Gatineau, QC, Canada
AbeBooks Seller since 20 April 2016
Used - Soft cover
Condition: Used - Near fine
Quantity: 1 available
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