On Modern Screw Propellers
By A. E. Potter

The only book of its kind ever written. Profusely illustrated. Plain and simple terms. Chapters on measuring, testing and correcting. Reproduction of over one hundred and twenty-five U. S. Patents taken out since 1890. Invaluable for Power Boat Owners, Marine Engine Designers and Boatbuilders or those interested in power boats generally.

Price, $1.00 prepaid


FOR THE GREEN HAND
On Yacht Sailing
By THOMAS FLEMING DAY

A simple explanation of the art of sailing small craft, fully illustrated with diagrams and plans.

CONTENTS

Special Remarks; General Remarks; The Boat and Rig; The Sides and Tacks; The Helm; Nomenclature of Rigging and Sail; Sailing on the Wind; Sailing off the Wind; Reefing and Jibing; Maneuvers; Taking Care of the Boat; Rules of the Road; List of Books; Glossary of Terms.