The mariners new kalendar. [electronic resource] : Containing the principles of arithmetick and geometry; with the extraction of the square and cube root. : Also rules for finding the prime, epact, moons-age, times of high-water; with tables for the same. : Together with exact tables of the suns place, declination, and right ascension ... : Also the description and use of the sea-quadrant, forestaff and nocturnal ... / By Nath. Colson ..