Notwithstanding loran and GPS, there will always be a place for the sextant aboard the boats of true navigators, if for no other reason than the thrill and mystery of finding one's position on earth by gazing at the heavens. Celestial navigation is still a popular course in the U.S. Power Squadron curriculum, and The Sextant Handbook is still the only book devoted to the use of this most beautiful and functional of navigators' tools. The book is designed to make the beginning and expert navigator alike conversant with the sextant's workings and use. Topics include assembly and disassembly, vital adjustments, oiling and cleaning, how to buy a new or used sextant, and rough weather sighting techniques. The manufacturer, distributor, and dealer addresses in the appendices have been thoroughly updated for this revised edition.