A Treatise on Surveying and Navigation. (Logarithms.). |
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Common terms and phrases
apparent altitude barometer called chains chronometer circle circumferentor compass compute correction corresponding Cosine Cotang course and distance decimal Degrees Diff difference of latitude difference of longitude direction divide draw earth east equal equation error example feet figure give given point Greenwich height horizon glass horizontal parallax inches instrument latitude and departure lines drawn logarithm longitude by chronometer lower limb mean measure meridian distance meridian line miles moon moon's multiply N.sine Nautical Almanac needle noon object observer parallel perpendicular plane plane sailing polar distance polygon problem radius represent right angles right ascension screw semi-diameter setting and drift sextant ship sail side Sine spherical trigonometry star station subtract sun's suppose survey surveyor Tang tangent telescope theodolite trapezoid traverse table triangle trigonometry true altitude vernier scale Whence zenith