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 SchoolsKimber and Sharpless, no. 93, Market Street, and John Richardson, no. 244, Market Street., 1820 - 206 páginas |
Dentro del libro
Resultados 6-10 de 27
Página 107
... according as the bearing is northerly or southerly , and towards E or W according as it is easterly or westerly , and number them 1 , 2 , 3 , 4 , & c . as in the figure . From A the centre of the circle , to 1 draw A 1 , on which lay ...
... according as the bearing is northerly or southerly , and towards E or W according as it is easterly or westerly , and number them 1 , 2 , 3 , 4 , & c . as in the figure . From A the centre of the circle , to 1 draw A 1 , on which lay ...
Página 110
... according as it is less or more than 45 ° . Then against the given distance , found in the column of dis- tances at the side of the table , and under the bearing , if at the top , or over it if at the bottom , is the correspond- ing ...
... according as it is less or more than 45 ° . Then against the given distance , found in the column of dis- tances at the side of the table , and under the bearing , if at the top , or over it if at the bottom , is the correspond- ing ...
Página 113
... according as they are north or south , east or west . Add up the northings and southings , and if the sums are not equal , find their difference , which will be the error of the survey in difference of latitude , which call by the same ...
... according as they are north or south , east or west . Add up the northings and southings , and if the sums are not equal , find their difference , which will be the error of the survey in difference of latitude , which call by the same ...
Página 114
... according as the latitude is north or south . Half the dif- ference of the sums of the numbers contained in these columns will be the area of the survey * . * DEMONSTRATION . - Let ABCDEFGH , Fig . 78 , represent the boundary of a ...
... according as the latitude is north or south . Half the dif- ference of the sums of the numbers contained in these columns will be the area of the survey * . * DEMONSTRATION . - Let ABCDEFGH , Fig . 78 , represent the boundary of a ...
Página 121
... according as the departure is east or west . To this meridian distance add the same departure , and the sum will be the second meridian distance , which place under the former in the same horizontal column , and mark it with the same ...
... according as the departure is east or west . To this meridian distance add the same departure , and the sum will be the second meridian distance , which place under the former in the same horizontal column , and mark it with the same ...
Términos y frases comunes
ABCD ABFD acres adjacent adjacent angles angle ABC angle opposite angled triangle base bearing and distance breadth Calculation centre Co-secant Secant Co-sine Co-tang column cube root decimal DEMONSTRATION departure corresponding diff difference of latitude Dist divide division line draw equal EXAMPLES feet figures find the angle find the area four-pole chains fourth term given angle given area given bearing given number given ratio given side John Gummere Lat Dep latitude and departure length logarithm M.
M. Sine measured meridian distance natural number off-sets parallel parallelogram perches perpendicular quired quotient radius rectangle remainder Required the area right angle right line right-angled triangle RULE semiperimeter side AB side AC square root station stationary line subtract survey tance Tang tangent tract of land trapezium trapezoid triangle ABC trigonometry