Epitomy of navigation, [electronic resource] : Containing plain and easy rules, for the working all plain triangles, and their application to plain, traverse, oblique, Mercator and middle latitude sailing; with spherical trigonometry in all its cases, and its application to all the necessary problems in astronomy. To which is added, all necessary tables of the sun's declination, latitude and departure, meridional parts, latitude and longitude of places, &c. Concluding with a compleat table of logarithms, sines, tangents, &c. With the use of all the tables illustrated by examples. First written by Gellibrand, Norwood, and Jones; and now collected and digested into one compendium of navigation.