The mariner's new calendar. Containing the principles of arithmetic and practical geometry, with the extraction of the square and cube-roots: Also Rules for finding the Prime, Epact, Moon's-Age, Time of High-Water, with Tables for the same. Together with exact tables of the sun's place, declination, and right ascension. Of the Right Ajcension and Declination of the principal fixed Stars. Of the Latitude and Longitude of Places. A large Table of the Difference of Latitude and Departure, for the exact working a Traverse. Also the description and use of the sea-quadrant, fore-staff, and nocturnal: Necessary Problems in Plane-Sailing and Astronomy, wrought by the Logarithms, and by Gunter's Scale. A Tide-Table. The Courses and Distances on the Coast of Great-Britain, Ireland, France, &c. and the Soundings at coming into the Channel. With Directions for sailing into some Principal Harbours. By Nathaniel Colson, Student in the Mathematicks. The whole revised and adjusted to the new-stile. By William Mountaine. . F. R. S. To this edition is added, The compleat Irish coaster