## A Treatise on Surveying and Navigation, Uniting the Theoretical, Practical, and Educational Features of These Subjects |

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### Common terms and phrases

acres apparent altitude barometer box the compass called chains chronometer circle circumferentor compass computed correction cos.a cosine course and distance decimal degree Diff difference of longitude direction divide division draw earth east equal equation example feet figure find the area give given line given point Greenwich height Hence horizontal parallax hypotenuse inches instrument latitude and departure lines drawn longitude by chronometer measure meridian distance miles moon's Multiply natural sines Nautical Almanac needle number corresponding object observations parallel perpendicular plane plane sailing polar distance polygon problem radius represent right angles right ascension rods scale screw secant setting and drift sextant ship sail side sin.i sines and cosines spherical trigonometry square star station subtract sun's survey surveyor tangent telescope theodolite trapezoid traverse table triangle trigonometry unity vernier vernier scale Whence