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
... ground , and would establish a kind of language by which all the peculiarities of soil and surface could be accurately represented . An account is also given of the manner of surveying the public lands ; and although the method is ...
... ground , and would establish a kind of language by which all the peculiarities of soil and surface could be accurately represented . An account is also given of the manner of surveying the public lands ; and although the method is ...
Page 6
... Ground , Of Laying Out and Dividing Land , 688 79 89 CHAPTER IV . Surveying with the Compass , 91 Of the Compass , 92 Fold Notes , 96 Traverse Table , 98 Of Balancing the Work , 100 Of the Double Meridian Distances of the Courses , 102 ...
... Ground , Of Laying Out and Dividing Land , 688 79 89 CHAPTER IV . Surveying with the Compass , 91 Of the Compass , 92 Fold Notes , 96 Traverse Table , 98 Of Balancing the Work , 100 Of the Double Meridian Distances of the Courses , 102 ...
Page 53
... ground ; and also , as many angles as may be necessary to render at least three parts of every triangle known and 2d . To calculate , by trigonometry , the other sides and angles that may be required . Our attention , then , is di ...
... ground ; and also , as many angles as may be necessary to render at least three parts of every triangle known and 2d . To calculate , by trigonometry , the other sides and angles that may be required . Our attention , then , is di ...
Page 55
... ground be too great to admit of measuring a whole chain at a time , a part of a chain only should be measured : the sum of all the horizon- tal lines so measured , is evidently the horizontal distance between the stations . A For ...
... ground be too great to admit of measuring a whole chain at a time , a part of a chain only should be measured : the sum of all the horizon- tal lines so measured , is evidently the horizontal distance between the stations . A For ...
Page 61
... ground : reverse the telescope , and turn the vernier plate 180 ° ; now , if in elevating and depressing the telescope , the line of collimation passes through the two points before noted , the axis is horizontal . If it be found , by ...
... ground : reverse the telescope , and turn the vernier plate 180 ° ; now , if in elevating and depressing the telescope , the line of collimation passes through the two points before noted , the axis is horizontal . If it be found , by ...
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