Elements of Surveying with a Description of the Instruments and the Necessary Tables Including a Table of Natural Sines |
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Page 13
... units in the characteristic of the given logarithm , and treat the figures to the right as decimals . If the characteristic of the given logarithm is 0 , there will be one place of whole numbers ; if it is - 1 , the number will be ...
... units in the characteristic of the given logarithm , and treat the figures to the right as decimals . If the characteristic of the given logarithm is 0 , there will be one place of whole numbers ; if it is - 1 , the number will be ...
Page 15
... unit , if any , carried in the subtraction from the decimal part of the logarithm . Or , if the charac teristic of the logarithm of the dividend is negative , it must be treated as a negative number . EXAMPLES . 1. To divide 24163 by ...
... unit , if any , carried in the subtraction from the decimal part of the logarithm . Or , if the charac teristic of the logarithm of the dividend is negative , it must be treated as a negative number . EXAMPLES . 1. To divide 24163 by ...
Page 24
... unit of the scale . This unit is laid off several times on the left of the divided line , and the points marked , 1 , 2 , 3 , & c . is , in general , either an If , for example , ab the The unit of scales of equal parts , inch , or an ...
... unit of the scale . This unit is laid off several times on the left of the divided line , and the points marked , 1 , 2 , 3 , & c . is , in general , either an If , for example , ab the The unit of scales of equal parts , inch , or an ...
Page 25
... unit of the scale . A like distance measured on the second line will be two hundredths ( .02 ) of the unit of the scale ; on the third , .03 ; on the fourth , .04 , & c . If it were required to take , in the dividers , the unit of the ...
... unit of the scale . A like distance measured on the second line will be two hundredths ( .02 ) of the unit of the scale ; on the third , .03 ; on the fourth , .04 , & c . If it were required to take , in the dividers , the unit of the ...
Page 30
... unit of the scale . 33. Suppose that the given line were 75 feet in length , and it were required to draw it on paper , on a scale of 25 feet to The length of the line 75 feet , being divided the inch . 30 INTRODUCTION .
... unit of the scale . 33. Suppose that the given line were 75 feet in length , and it were required to draw it on paper , on a scale of 25 feet to The length of the line 75 feet , being divided the inch . 30 INTRODUCTION .
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