"The ready observator; or an infallible method for determining the latitude at Sea; by altitudes of the sun, at any time of the day, either fore-noon or after-noon, independant of a meridional observation . . . with a compleat and correct sett of all the necessary tables. [Med kbrst. Titelblad]"
"The Ready observator, or an Infaillible method for determining the latitude at sea by altitudes of the sun... Logarithmic solar tables,... by N. D. Falck"
"The ready observator; : or an infallible method for determining the latitude at sea: by altitudes of the sun, at any time of the day, either fore-noon or after-noon, independent of a meridional observation. The whole rendered peculiarly easy for practice, and annexed with a compleat and correct sett of the necessary tables; viz. logarithmic solar tables, sun's declination, natural sines, secants less radius, and logarithms"@en
"The ready observator : or an infallible method for determining the latitude at sea: by altitudes of the sun ... By N.D. Falck"@en
"The ready observator or an infallible method for determining the latitude at sea: by altitudes of the sun, At any Time of the Day, either Fore-Noon or After-Noon, Independant of a Meridional Observation. The Whole rendered peculiarly easy for Practice, and annexed with a compleat and correct Sett of all the necessary Tables; Viz. Logarithmic Solar Tables, Sun's Declination, Natural Sines, Secants Less Radius, and Logarithms. By N.D. Falck"@en
"The ready observator or an infallible method for determining the latitude at sea: by altitudes of the sun, At any Time of the Day, either Fore-Noon or After-Noon, Independant of a Meridional Observation. The Whole rendered peculiarly easy for Practice, and annexed with a compleat and correct Sett of all the necessary Tables; Viz. Logarithmic Solar Tables, Sun's Declination, Natural Sines, Secants Less Radius, and Logarithms. By N.D. Falck"
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