The following text may have been generated by Optical Character Recognition, with varying degrees of accuracy. Reader beware!

"TAE MARINE. REVIEW : 41 THE ELEMENTS OF 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 BY 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 in a work of this kind. CONTENTS Introduction Compass Error by Azimuths Variation Longitude by Chronometer (or Deviation Time) Sight How to find the Deviation Remarks on Longitude Leeway Longitude by Sunrise and Sunset The Log Sights The Lead-Line Chronometer Sight of a Star Charts Sumner's Method Chart Sailing Example of Sumner's Method : with the Sun oe eee Exaniple of Sumner Lines with Examples for Practice . ' Two Stara Working a Traverse Great-Circle Sailing Hove to Distance and Danger Angles Shaping the Course Allowance for Tides Navigation by Observation Keeping the Log Sextant Adjustments Rating a Chronometer Index Error . Care of a Chronometer Hints on Taking Altitudes Hints on Conducting Voyages Correcting the Altitude The Chronometer The Nautical Almanac Examples for Practice: Dead-Reckoning A. LeEvINE © Co. SUBMARINE CONTRACTORS AND WRECKERS 2508 E. 39th Street Cleveland, Ohio Derrick Lighter furnished; also Diver on short notice. '*Phone Central 608-L ANY SIZE OUTSIDE OR INSIDE DIAMETER | ty Narvoa eum eMC ike OW AND SO O10) iy mm 935 | MADE OF BEST QUALITY DOUBLE REFINED CHARCOAL VO Lda ATA Ville Wz a Safety and Coal Economy 2 are realized by our Hollow Stay Bolts. Steam from the center of a broken Hollow | bolt always gives positive warning, hence SAFETY assing into the firebox through the hollow Salt elps combustion, hence ECONOMY : Tell-tale holes clog up. Hollow stays "mever." ' Passage of air always keeps the holes open. Send for free literature. Falls Hollow Staybolt Company Cuyahoga Falls, Ohio PICKANDS, MATHER & CO. FUEL LIGHTERS at Buffalo, Erie, Ashtabula and Cleveland. A': Detour, Mich., a Fue: Dock equipped with shute capacity of 600 tons. Best quality Pittsburgh coal furnished at any time during Day or Night. CLEVELAND, 0. 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 below the Pole Latitude by Ex-Meridian Altitude of the Sun Latitude by the Polestar 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 PRICE $1.00 The Marine Review Cleveland ' Steamboat Fuel at Ashtabula Large Supplies of Best Quality. Lighter Carrying Different Grades at All Times. Fuel Scow with elevators and discharging spouts. Storage of 800 tons. Discharges 250 tons an hour into steamers while unloading cargo. M. A. Hanna & Co., Miners and Shippers. Main Office, Perry-Payne Bidg., Cleveland ==