Elements of Surveying with a Description of the Instruments and the Necessary Tables Including a Table of Natural Sines |
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Page 3
... lands ; and although the method is simple , it has , nevertheless , been productive of great results , by defining , with mathematical precision , the boundaries of lands in the new States , and thus settling their titles on an ...
... lands ; and although the method is simple , it has , nevertheless , been productive of great results , by defining , with mathematical precision , the boundaries of lands in the new States , and thus settling their titles on an ...
Page 6
... Land by means of the Table of Natural Sines , 120 Method of Surveying the Public Lands , 126 Variation of the Needle , 127 Of the Plain Table , 133 Of Levelling , Of the Level , Of the Levelling Staves , Of the Contour of Ground ...
... Land by means of the Table of Natural Sines , 120 Method of Surveying the Public Lands , 126 Variation of the Needle , 127 Of the Plain Table , 133 Of Levelling , Of the Level , Of the Levelling Staves , Of the Contour of Ground ...
Page 79
... land . 103. We come next to the determination of the area or content of ground . The surface of the ground being , in general , broken and uneven , it is impossible , without great trouble and expense , to ascertain its exact area or ...
... land . 103. We come next to the determination of the area or content of ground . The surface of the ground being , in general , broken and uneven , it is impossible , without great trouble and expense , to ascertain its exact area or ...
Page 80
... land measured . It has been already observed ( Art . 83 ) , that Gunter's chain . of four rods or 66 feet in length , and which is divided into 100 links , is the chain in general use among surveyors . We shall , therefore , take the ...
... land measured . It has been already observed ( Art . 83 ) , that Gunter's chain . of four rods or 66 feet in length , and which is divided into 100 links , is the chain in general use among surveyors . We shall , therefore , take the ...
Page 81
... Land is generally computed in acres , roods , and perches , which are respectively designated by the letters A. R. P. When the linear dimensions of a survey are chains or links , the area will be expressed in square chains or square ...
... Land is generally computed in acres , roods , and perches , which are respectively designated by the letters A. R. P. When the linear dimensions of a survey are chains or links , the area will be expressed in square chains or square ...
Common terms and phrases
acres adjusted angle of elevation axis azimuth back-sights base line called centre clamp-screw coincide column comp compass Cosine D Cosine Sine Cotang course curve decimal degrees determined difference of level direction divided double meridian distance draw east elongation error example feet field notes figure given angle given line given point ground Gunter's chain half hence horizontal angle horizontal distance horizontal plane hypothenuse inches instrument intersection latitude and departure length levelling screws line AC line of collimation logarithm M.
M. Sine marked measure method multiplied natural sines needle object paper parallel passing perpendicular piece of land pins plane of reference protractor radius right angles right-angled triangle rods scale of equal secant side similar triangles spider's lines square chains staff subtract surface survey Tang tangent theodolite true meridian vernier plate vertical limb yards