Tables requisite to be used with the nautical ephemeris, for finding the latitude and longitude at sea : published by order of the Commissioners of Longitude / Nevil Maskelyne.

Successful long-distance navigation depends on knowing latitude and longitude, and the determination of longitude depends on knowing the exact time at some fixed point on the earth's surface. Since Newton it had been hoped that a method based on accurate prediction of the moon's orbit would give suc...

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