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

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altitude Ascension in Arc axis azimuth Baily Barometer 30 Inches central wire circumpolar star Co-ordinates Collimation compute convert Terrestrial Longitude correction corresponding decimal point declination degree dicular Diff difference Earth’s English feet English inches Equations to Equal.Altitudes Equator in Arc Fahrenheit’s Thermometer 50 found by moving Géodésie Greenwich h m s hour angle Intermediate minutes JMean JMeridional Arcs—Values length Longitude in Arc magnetic moment mean noon Mean R. A. mean solar measure meridian metre middle wire miles Millimetres minutes and seconds moon’s moving the decimal Nautical Almanac Nsin º º Obs'd less observed p d m d p parallax parallel Parallel—Values perpen pole quantities radius of curvature reduce refraction Right Ascension sidereal day station sun’s Tables and Formulae tang L tang L-H Theodolite toises Transit Instrument Troy weight vibration weight zenith distance