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
... angles are fully explained . The conventional signs adopted by the Topographical Beau- reau , and which are now used by the United States Engineers in all their charts and maps , are given in plates 5 and 6 . Should these signs be ...
... angles are fully explained . The conventional signs adopted by the Topographical Beau- reau , and which are now used by the United States Engineers in all their charts and maps , are given in plates 5 and 6 . Should these signs be ...
Page 6
... Angles , 53 To Measure a Horizontal Line , 54 Of the Theodolite , 55 Heights and Distances , 66 Of Measurements with the Tape or Chain , 74 Surveying Cross , 76 CHAPTER III . Of the Content of Ground , Of Laying Out and Dividing Land ...
... Angles , 53 To Measure a Horizontal Line , 54 Of the Theodolite , 55 Heights and Distances , 66 Of Measurements with the Tape or Chain , 74 Surveying Cross , 76 CHAPTER III . Of the Content of Ground , Of Laying Out and Dividing Land ...
Page 18
... Angles , like all other quantities , are susceptible of addition , subtraction , multiplication , and division . Thus the angle DCE is the sum of the two angles DCB , BCE ; and the angle DCB is the difference of the A 10. When a ...
... Angles , like all other quantities , are susceptible of addition , subtraction , multiplication , and division . Thus the angle DCE is the sum of the two angles DCB , BCE ; and the angle DCB is the difference of the A 10. When a ...
Page 19
... angles is called a right angle ; and the line AB is said to be perpendicular to CD . 11. Every angle BAC , less than a right angle , is an acute angle ; and every angle DEF , greater than a right angle , is an obtuse angle . E 12. Two ...
... angles is called a right angle ; and the line AB is said to be perpendicular to CD . 11. Every angle BAC , less than a right angle , is an acute angle ; and every angle DEF , greater than a right angle , is an obtuse angle . E 12. Two ...
Page 20
... angles right angles . The rectangle , which has its angles right angles , without having its sides equal . The parallelogram , or rhomboid , which has its opposite sides parallel . The rhombus , or lozenge , which has its sides equal ...
... angles right angles . The rectangle , which has its angles right angles , without having its sides equal . The parallelogram , or rhomboid , which has its opposite sides parallel . The rhombus , or lozenge , which has its sides equal ...
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