Topographical Surveying: Including: Topographical Surveying

ABCD accuracy angular anharmonic ratio axis azimuth base calculated cd and c'd center wire cloth co-ordinates Coast Survey computed concurrent lines constructed contour lines contour map curve determine diagonals direction distance AC earth engineer equal equations error feet field figure fixed focal distance foot formula four points Geometry of Position gineer Graphical ground height horizontal illustrated instru intersection justment land latitude Laussedat length line AC line joining line of sight lines cd locate magnetic bearing measured ment method morocco needle object obstruction obtained pairs pass plane plates point of sight points of divergence posi practical principal point Prof proof proposition railroad referred right line rodmen scale set the instrument side slide slide rule solar compass stadia reading stadia wires taken tance telescope theodolite three points tion topographical map TOPOGRAPHICAL SURVEYING Treatise triangulation trigonometrical tween vernier vertical angle zero