The mariners compass rectified [electronic resource] : containing tables, shewing the true hour of the day, the Sun being upon any Point of the Compass: The Time of the Rising and Setting of the Sun and Stars, and the Points of the Compass that the Sun and Stars rise and set with: And Tables of Amplitude: with a table of the latitude and longitude of places. Calculated from the Equinoctial, to 60 deg. of Latitude, &c. Also a description and use of those instruments most in use in the art of navigation. By Andrew Wakely, Math. Carefully corrected, and very much enlarged, with many useful additions. By Ja. Atkinson, Teacher of the Mathematicks.