Longitudinis inventæ explicatio non longa, or, Fixing the volatilised, 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 - Fyler, Samuel (Printed for the author, 1699)
Imperfect: stained, with print show-through. - Reproduction of original in the British Library. - Wing, F59