The mariners new kalendar : Containing the principles of arithmetick and geometry; with the extraction of the square and cube roots. Also rules for finding the prime, epact, moon's age, time of highwater, with tables for the same. Together with exact tables of the sun's place, declination, and right ascension. Of the right ascension and declination of the principal fixed stars. Of the latitude and longitude of places. A large table of difference of latitude and departure, for the exact working a traverse. Also the description and use of the sea-quadrant, forestaff and nocturnal. The problems of plain-sailing and astronomy, wrought by the logarithms, and by gunter's scale. A tide table. The courses and distances on the coast of England, Scotland, Ireland, France, &c. And the soundings coming into the channel. With directions for sailing into some principal harbours. By Nathaniel Colson, student in-the mathematicks. The sixth edition. With an addition of mercator's sailing, by John Colson, teacher of the mathematicks.