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, time 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 ... / Nath. Colson.