The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtJ.J. Harper, 1828 - 435 σελίδες |
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Σελίδα 7
... Latitude by the Meridian Altitude of the Sun 243 4. Variation of theCom- pass - LIST OF TABLES . 133 Logarithms of ... Difference of Altitude of Pole - · 192 200 Star and Pole - Sun's Declination 205 Reduction Table 5. Method of ...
... Latitude by the Meridian Altitude of the Sun 243 4. Variation of theCom- pass - LIST OF TABLES . 133 Logarithms of ... Difference of Altitude of Pole - · 192 200 Star and Pole - Sun's Declination 205 Reduction Table 5. Method of ...
Σελίδα 70
... distance 10 , a distance between eight on one leg , and six on the other leg . On the sines , make the lateral ... latitude and hours are sometimes put upon the plain scale ; but , as dialling is now but sel- dom studied , they are ...
... distance 10 , a distance between eight on one leg , and six on the other leg . On the sines , make the lateral ... latitude and hours are sometimes put upon the plain scale ; but , as dialling is now but sel- dom studied , they are ...
Σελίδα 76
... difference of latitude between the two places de- noted by the divisions . These degrees are reduced to leagues by ... distance between the third 76 GUNTER'S SCALE .
... difference of latitude between the two places de- noted by the divisions . These degrees are reduced to leagues by ... distance between the third 76 GUNTER'S SCALE .
Σελίδα 177
... difference of latitude , or the northing or southing of any stationary line , is the distance that one end of the line is north or south from the other end ; or it is the distance which is intercepted on the meridian , between the ...
... difference of latitude , or the northing or southing of any stationary line , is the distance that one end of the line is north or south from the other end ; or it is the distance which is intercepted on the meridian , between the ...
Σελίδα 178
... difference of latitude and de- parture for any stationary line , whose course and distance are given , may be obtained by the table , usually called the Traverse Table . * This Table is calculated by the first case of right - angled ...
... difference of latitude and de- parture for any stationary line , whose course and distance are given , may be obtained by the table , usually called the Traverse Table . * This Table is calculated by the first case of right - angled ...
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ABCD acres altitude Answer arch base bearing centre chains and links circle circumferentor Co-sec Co-tang column compasses contained cube root decimal difference of latitude Dist divided divisions divisor draw east Ecliptic edge EXAMPLE feet field-book figure four-pole chains given angle given number half the sum height Hence Horizon glass hypothenuse inches instrument length logarithm measure Meridian Altitude meridian distance method multiplied natural co-sine natural number natural sine Nonius number of degrees object observed off-sets opposite parallel parallelogram perches perpendicular plane prob PROBLEM proportional protractor Quadrant quotient radius rhombus right angles right line Secant sect semicircle Sextant side square root station subtract Sun's survey taken Tang tangent theo theodolite THEOREM trapezium triangle ABC trigonometry two-pole chains vane versed sine vulgar fraction whence