## A Collection of Tables and Formulae Useful in Geodesy and Practical Astronomy, Including Elements for the Projection of Maps |

### Common terms and phrases

altitude Astronomical axis azimuth Baily Barometer Barometer 30 Inches Co-ordinates Collimation compute convert correction corresponding cos² cubic decimal point declination deduced deflecting magnet degree Diff difference English feet English inches Equal Altitudes Equations to Equal formula found by moving Francœur French Géodésie Greenwich Greenwich mean horizontal intensity hour angle Intermediate minutes latitude length limb Longitude magnetic moment mean noon Mean R. A. mean solar measure meridian Meridional Arcs-Values metre middle wire mile minus minutes and seconds moon's moving the decimal Nautical Almanac observed parallax parallel pole prime vertical probable error quantities R. A. in Arc reduce refraction right ascension scale sidereal sidereal day sin² spherical excess star station sun's Tables and Formulæ tang temperature Theodolite tion toises Topographical Transit Instrument Troy Troy weight value of Lat velocity vibration weight zenith distance бр