## A treatise on surveying, containing the theory and practice: to which is prefixed a perspicuous system of plane trigonometry. The whole clearly demonstrated and illustrated by a large number of appropriate examples particularly adapted to the use of schools |

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ABCD ABFD acres adjacent adjacent angles angle ABC angle opposite angled triangle base bearing and distance breadth Calculation centre Co-sine Co-tang column decimal Demonstration departure corresponding diff difference of latitude dist divide division line draw east equal EXAMPLES feet field-notes figures find the angle find the area four-pole chains fourth term given angle given area given bearing given ratio given side half John Gummere Lat Dep latitude and departure length logarithm M.
M. Sine measured meridian distance natural number off-sets ooooo parallel parallelogram perches perpendicular quired radius rectangle remainder Required the area rhombus right angled right line right-angled triangle RULE Secant semicircle semiperimeter side AC square root station stationary line subtract survey tance Tang tangent tract of land trapezium trapezoid triangle ABC trigonometry