The mariners new kalendar : Containing the principles of arithmetick and geometry; ... Together with exact tables of the sun's place, declination, and right ascension. ... Also, the description and use of the sea-quadrant, fore-staff and nocturnal. ... With directions for sailing into some principal harbours. By Nathaniel Colson. - Colson, Nathaniel (printed for Thomas Page, William and Fisher Mount, 1724)