Kalendarium nauticum [electronic resource] : the sea-man's almanack, for the year of Christ 1676. Being bissextile or leap-year. Comprising not onely such things as are usually contained in other annual almanacks, but accommodated with such precepts, rules, and tables, as are of daily use in the practise of navigation and traffick. Principally referred to the meridian of London[;] With direction how it may become useful in any part of the world, and especially to the kingdoms of England, Scotland, and Ireland. / By Henry Seaman, marriner.