A Treatise on Practical Surveying: Which is Demonstrated from Its First Principles, Wherein Every Thing that is Useful and Curious in that Art, is Fully Considered and ExplainedF. Lucas, Jun. and Joseph Cushing, 1816 - 472 σελίδες |
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Σελίδα vii
... has been carefully corrected , and it is hoped that the work is as free of such errors as any publication of the kind . room . Baltimore , 1816 . THE word geometry imports no more than to measure the 0293 460326 ADVERTISEMENT. ...
... has been carefully corrected , and it is hoped that the work is as free of such errors as any publication of the kind . room . Baltimore , 1816 . THE word geometry imports no more than to measure the 0293 460326 ADVERTISEMENT. ...
Σελίδα ix
... measure the earth , or to measure land ; yet in a larger and more proper sense , it is applied to all sorts of dimensions . It is generally supposed to have had its rise among the Egyptians , from the river Nile's destroying and con ...
... measure the earth , or to measure land ; yet in a larger and more proper sense , it is applied to all sorts of dimensions . It is generally supposed to have had its rise among the Egyptians , from the river Nile's destroying and con ...
Σελίδα x
... measure omitted the practice . These considerations induced me to attempt a me- thodical , easy , and clear course ... measures of inaccessible heights and distances . The third section gives an account of the chains and measures used in ...
... measure omitted the practice . These considerations induced me to attempt a me- thodical , easy , and clear course ... measures of inaccessible heights and distances . The third section gives an account of the chains and measures used in ...
Σελίδα 13
... measure as is agreeable and customary to the country or place where the land is . This science depends on some parts of the mathe- maticks , which must be known before we can treat of it , wherefore we shall begin with DECIMAL FRACTIONS ...
... measure as is agreeable and customary to the country or place where the land is . This science depends on some parts of the mathe- maticks , which must be known before we can treat of it , wherefore we shall begin with DECIMAL FRACTIONS ...
Σελίδα 44
... measured by half the arc they stand on , viz . by half the arc AB . fig . 26 . 1 A fig . 26 . Cor . 3. Hence an angle ... measure of the angle ABC , must be greater than half a semicircle , that is , greater than a right angle , fig . 27 ...
... measured by half the arc they stand on , viz . by half the arc AB . fig . 26 . 1 A fig . 26 . Cor . 3. Hence an angle ... measure of the angle ABC , must be greater than half a semicircle , that is , greater than a right angle , fig . 27 ...
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Συχνά εμφανιζόμενοι όροι και φράσεις
20 perches 50 Dist ABCD acres altitude annexed Answer base bearing bisect blank line centre chains and links chord circle circumferentor Co-secant Secant Co-sine Co-tang column contained cyphers decimal decimal fraction Dep Lat difference divided divisor draw east edge EXAMPLE feet field-book figures four-pole chains given angle half the sum height Hence hypothenuse inches instrument latitude length logarithm magnetical measure meridian distance multiplied needle number of degrees object off-sets parallel parallelogram perpendicular piece of ground plane Portmarnock PROB proportion protractor quotient radius right angles right line scale of equal SCHOLIUM sect semicircle side sights sine square root stationary distance sun's suppose survey taken tance Tang tangent thence theo theodolite THEOREM thro trapezium triangle ABC trigonometry true amplitude true azimuth two-pole chains vane variation whence