The Theory and Practice of Surveying: Containing All the Instructions Requisite for the Skilful Practice of this ArtJ.J. Harper, 1828 - 435 páginas |
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Página 4
... Survey , by having the Meridian pass through the east or west point of the survey , with the method of dis- covering these points from the Field Notes , and the method of cor- recting the errors by the pen , when the survey does not ...
... Survey , by having the Meridian pass through the east or west point of the survey , with the method of dis- covering these points from the Field Notes , and the method of cor- recting the errors by the pen , when the survey does not ...
Página 7
... Survey , geometrically con- sidered and de- monstrated 4. Of Off - Sets Mean Refraction Sun's Parallax · - 246 1 20 · 71 82 83 174 175 · ib . 176 - 177 178 182 Dip of the Horizon Dip for Dif . Dist . of land Semi - Diameter of the Sun ...
... Survey , geometrically con- sidered and de- monstrated 4. Of Off - Sets Mean Refraction Sun's Parallax · - 246 1 20 · 71 82 83 174 175 · ib . 176 - 177 178 182 Dip of the Horizon Dip for Dif . Dist . of land Semi - Diameter of the Sun ...
Página 9
... surveys ; and fourthly to the calculation of its area , or superficial content . When this art is employed in observing and delineating Coasts and Harbours , in determining their variation of the Compass , their Latitude , Longitude ...
... surveys ; and fourthly to the calculation of its area , or superficial content . When this art is employed in observing and delineating Coasts and Harbours , in determining their variation of the Compass , their Latitude , Longitude ...
Página 106
... surveys arise from bad chaining , that is , from straying out of the right line , as well as from other omissions of the ... survey , in a great measure , depends on his care and skill . In setting out to measure any stationary distance ...
... surveys arise from bad chaining , that is , from straying out of the right line , as well as from other omissions of the ... survey , in a great measure , depends on his care and skill . In setting out to measure any stationary distance ...
Página 108
... yards ; and because 14 half yards is an Irish , and 11 half yards is an English perch , therefore 11 Irish perches , or Irish Since some surveys are taken by a four - pole miles , are equal to 14 English ones , 108 OF THE CHAIN .
... yards ; and because 14 half yards is an Irish , and 11 half yards is an English perch , therefore 11 Irish perches , or Irish Since some surveys are taken by a four - pole miles , are equal to 14 English ones , 108 OF THE CHAIN .
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Términos y frases comunes
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