## The New American Practical Navigator: Being an Epitome of Navigation; Containing All the Tables Necessary to be Used with the Nautical Almanac in Determining the Latitude, and the Longitude by Lunar Observations, and Keeping a Complete Reckoning at Sea ... The Whole Exemplified in a Journal, Kept from Boston to Madeira, in which All the Rules of Navigation are Introduced ... With an Appendix, Containing Methods of Calculating Eclipses of the Sun and Moon, and Occultations of the Fixed Stars ... |

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### Common terms and phrases

anchor apparent altitude azimuth cable calculation centre chronometer column compass Corr correct altitude correct central altitude corresponding Cosec Cosine Cotangent course degrees Diff difference of latitude difference of longitude Dist elapsed equal equator error EXAMPLE finding the latitude Funchal given Greenwich Half-sum horizon glass horizontal parallax hour angle Hour P.M. hypotenuse Latitude and Departure latitude by account less than 90 line of numbers lower limb lunar observation mean meridian altitude method middle latitude miles minutes moon moon's Nautical Almanac nearly noon object observed altitude parallel passing the meridian perpendicular Plane Sailing planet polar distance Prop refraction sails sea account Secant semidiameter sextant ship ship's side sine star subtract sun's declination sun's right ascension Suppose Table XXVII taken tangent telescope traverse table triangle true altitude true distance true longitude variation wind zenith distance