Elements of Surveying with a Description of the Instruments and the Necessary Tables Including a Table of Natural Sines |
From inside the book
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Page 6
... Notes , 96 Traverse Table , 98 Of Balancing the Work , 100 Of the Double Meridian Distances of the Courses , 102 Of the Area , 104 First Method of Plotting , 107 Second Method of Plotting , 107 Method of finding the Content of Land by ...
... Notes , 96 Traverse Table , 98 Of Balancing the Work , 100 Of the Double Meridian Distances of the Courses , 102 Of the Area , 104 First Method of Plotting , 107 Second Method of Plotting , 107 Method of finding the Content of Land by ...
Page 31
... length of the line which it represents , take the line in the dividers and apply it unit to which it is equal . Then multiply this to the scale , and note the number of units , and parts of an SOLUTION OF PROBLEMS . 31.
... length of the line which it represents , take the line in the dividers and apply it unit to which it is equal . Then multiply this to the scale , and note the number of units , and parts of an SOLUTION OF PROBLEMS . 31.
Page 54
... note should be made , that ten chains have been measured ; after which , the marking pins are to be returned to the leader , and the measurement continued as before , until the whole distance is passed over . Great care must be taken to ...
... note should be made , that ten chains have been measured ; after which , the marking pins are to be returned to the leader , and the measurement continued as before , until the whole distance is passed over . Great care must be taken to ...
Page 55
... note the distance ab . Then remove the staves and place them at b and d : make the chain horizontal , and note the distance cd . ' Mea- sure in the same manner the line fC ; and the sum of the horizontal lines ab , cd and fC , will be ...
... note the distance ab . Then remove the staves and place them at b and d : make the chain horizontal , and note the distance cd . ' Mea- sure in the same manner the line fC ; and the sum of the horizontal lines ab , cd and fC , will be ...
Page 64
... note the degrees and half degrees up to the line on the right ; then pass along the vernier till a line is found coinciding with a line of the limb : the number of this line from the 0 point , indicates the minutes which are to be added ...
... note the degrees and half degrees up to the line on the right ; then pass along the vernier till a line is found coinciding with a line of the limb : the number of this line from the 0 point , indicates the minutes which are to be added ...
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