## A treatise on surveying: containing the theory and practice: to which is prefixed a perspicuous system of plane trigonometry ... |

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ABCD ABFD acres adjacent angles apparent level axis bearings and distances centre changed bearing corner corrected decimal diff difference of latitude difference of level dist divided division line draw east equal EXAMPLES feet find the angles find the area fourth term given angle given area given side Given the bearings half height horizontal hypothenuse instrument last problem latitude and departure length line FE line of collimation line of level logarithm measured meridian multiplier natural number off-sets parallel parallelogram parture perches perpendicular pole star principal meridian prob quired quotient radius ratio Required the area right angles right line right-angled triangle RULE screws Secant side AC sine square root stake station stationary lines straight line subtract survey take the difference tangent theodolite township tract of land trapezium triangle ABC trigonometry upper telescope vane vernier plate