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THE ELEMENTS OF "TAE. Marine. REVIEW 43 NAVIGATION A short and complete explanation of the stan- dard methods of finding the position of a ship at sea and the course to be steered Designed for the instruction of beginners W. J. HENDERSON, Illustrated. The need of a short, simple, and yet comprehensive book on the art of navigating a ship has led the author to undertake the preparation of the present work. The aim of the book is to instruct the beginner, lead- ing him step by step from the first operations to the perfection of the art as found in the Sumner method. The instructions have been made as terse as possible, and yet the author believes that clearness has not been sacrificed. Fundamental principles have been ex- plained, but no attempt has been made to elucidate the higher mathematics on the subject. Students who have tried to learn navigation from books like Captain Lecky's inimitable "Wrinkles in Practical Naviga- tion", which is addressed to navigators only, or from Bowditch's "American Navigator", which is only for mathematicians, will, it is hoped, appreciate this little book. The explanations of the uses of the tables and the "Nautical Almanac" are a new feature ina work of this kind. Introduction Variation Deviation © How to find the Deviation Leeway The Log The Lead-Line Charts Chart Sailing Dead-Reckoning Examples for Practice Working a Traverse Hove to Shaping the Course Navigation by Observation Sextant Adjustments Index Error ' Hints on Taking Altitudes Correcting the Altitude The Chronometer The Nautical Almanac Apparent and Mean Time--The Equation Latitude by Meridian Altitude Latitude by Meridian Altitude of a Star Latitude by Meridian Altitude of a Planet Latitude by Meridian Altitude of the Moon Meridian Altitude belowthe Pole ~ Latitude by Ex-Meridian Altitude of the Sun Latitude by the Polestar CONTENTS | PRICE §$r.00. Compass Error by Azimuths Longitude by Chronometer (or Time) Sight Remarks on Longitude Longitude by Sunrise and Sunset Sights Chronometer Sight of a Star Sumner's Method Example of Sumner's Method with the Sun Example of Sumner Lines with Two Stars Great-Circle Sailing Distance and Danger Angles Allowance for Tides Keeping the Log Rating a Chronometer Care of a Chronometer Hints on Conducting Voyages Examples for Practice: Dead-Reckoning Shaping Course by Mercator's Sailing Latitude by Meridian Altitude . of Sun : Latitude by Meridian Altitude of Star Latitude by Meridian Altitude Below the Pole Latitude by Ex-Meridian Alti- tudes Latitude by the Polestar Longitude by Chronometer Sight The Marine Review Cleveland FERRALL'S HUB HOISTER AND Sheave for Same. The sheaves of these hoisters are fitted with Star Metaline Bushings , and Side Bearings, which keep the , sheaves from heating, make them jrun true and together with the rounded edges of the shells, soon save more than their cost, by pre- serving the rope. BOSTON & LOCKPORT BLOCK CO. BOSTON = MASS. Yy SHE Kaizenstein's Self- alae Acting Nletal Packing <B> oan tal For PISTON RODS, VALVE STEMS, Wy re etc. of every description for Steam Engines, PEIN Pumps, etc., etc. Adopted and in use by the principal Iron Works and Steamship Companies in this and foreign countries. FLEXIBLE TUBULAR METALLIC PACKING, for slip-joints on Steam Pipes, and for Hydraulic Pressure. For full particulars and reference, ad- dress L. KATZENSTEIN & @O. General Machinists. 358 West Street, New York. an GEO. STRATFORD OAKUM CO. JERSEY CITY, NEW JERSEY. Established 1860 Manufacturers of all grades of Oakum Spun Cotton FOR SALE AT SHIP CHANDLERS EVERYWHERE.