The mariner's compass rectified. Containing tables, shewing the true hour of the day, the Sun being upon any Point of the Compass: With the true Time of the Rising and Setting of the Sun and Stars, and the Points of the Compass upon which they rise and set: With Tables of Amplitudes. Which Tables of Sun-Dials, Semidiurnal Arches and Amplitudes are calculated from the Equator to 60 Degrees of Latit

Date:

[1779]