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Scope of Course
MEASUREMENT OF DISTANCE
29 other sections not shown
24 mile accurate azimuth back sight balanced bearing of line Bench Marks calculated chaining pins Chicago Steel clamp CLASS PROBLEMS clockwise corner correct Datum declination deflection angles determined difference in elevation distance divided Dumpy level elevation found Equipment error of closure field front sight graduated Gunter's Chain instrument interior angles iron bolt set iron pipe set latitude or departure latitudes and departures level tube leveling screws line BC line of sight loosened magnetic bearing Magnetic Declination magnetic meridian measured needle obtained pace plumb-bob plunged Principal Meridian Proceedure range poles rear chainman record rod reading set in concrete shown in Fig sight is taken sight reading slope South stake station steel tape survey surveyor Surveyor's Compass T-Square tance telescope tion township transit is set TRANSIT TELESCOPE triangle true bearing true meridian True North University Avenue vernier reading vertical angle West Wye level