Longitudinis inventæ explicatio non longa, or, Fixing the volatilis'd, and taking time on tiptoe, briefly explain'd by which rules are given to find the longitude at sea by, as truly and exactly as the latitude is found by the star in the tayle of Ursa Minor, call'd the Pole-star. BY S. F. A.M. rector of Stockton in the county of Wilts.
printed for the author,
in the year, 1699.
|Series:||Early English books online.
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