## A Treatise on Trigonometry, Plane and Spherical: With Its Application to Navigation and Surveying, Nautical and Practical Astronomy and Geodesy : with Logarithmic, Trigonometrical, and Nautical Tables, for the Use of Schools and CollegesG.P. Putnam, 1851 - 372 pages |

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### Common terms and phrases

A.M. Hour P.M. altitude azimuth centre colatitude collimation cols column comp complement computed cosc Cosecant Cotangent Diff Cotangent Secant declination determined diagram difference of latitude divided equal equation error EXAMPLE expressed feet formula Geom given number half the sum hence horizontal Hour A.M. Cosine Hour A.M. Hour hour angle hypothenuse Logarithms of Numbers longitude means middle wire miles multiplied Napier's rules Natural Sines Nautical Almanac negative number of degrees observed obtained parallel perpendicular plane triangle polar pole Prop proportion quadrant radius right angled triangle right ascension sailed screw second member side opposite siderial sin a cos sin a sin sinē sine and cosine sine of half solution sphere spherical triangle spherical trigonometry spirit level star substituting subtracting supporting axis tangent telescope trigonometrical lines zenith distance