. 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 . .914000 3 .912950 2 .911902 1 .S10^C6 0M Tang. oeo 830- COSINES, TANGENTS, AND COTANGENTS 181 M. 0123 456 789 10111213141516171319 2021222324 2;5 26272329 30313233343536373339 40414243444546474349 5051525354555657535960 Sine. D. 1. M.
. 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 . .914000 3 .912950 2 .911902 1 .S10^C6 0M Tang. oeo 830- COSINES, TANGENTS, AND COTANGENTS 181 M. 0123 456 789 10111213141516171319 2021222324 2;5 26272329 30313233343536373339 40414243444546474349 5051525354555657535960 Sine. D. 1. M. ([) ., CoBine. D. Sine. . . . . . . ),
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectrailroadengineering
