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Advert THE RADIO BOYS SERIES (Trademark Registered) By ALLEN CHAPMAN Author of the "Railroad Series," Etc. Individual Colored Wrappers. Illustrated. Every Volume Complete in Itself. A new series for boys giving full details of radio work, both in sending and receiving telling how small and large amateur sets can be made and operated, and how some boys got a lot of fun and adventure out of what they did. Each volume from first to last is so thoroughly fas- cinating, so strictly up-to-date and accurate, we feel sure all lads will peruse them with great delfght. Each volume has a Foreword by Jack Binns, the well- known radio expert. THE RADIO BOYS' FIRST WIRELESS .THE RADIO BOYS AT OCEAN POINT [THE RADIO BOYS AT THE SENDING STATION THE RADIO BOYS AT MOUNTAIN PASS THE RADIO BOYS TRAILING A VOICE THE RADIO BOYS WITH THE FOREST RANGERS THE RADIO BOYS WITH THE ICEBERG PATROL THE RADIO BOYS WITH THE FLOOD FIGHTERS THE RADIO BOYS ON SIGNAL ISLAND THE RADIO BOYS IN GOLD VALLEY GROSSET & DUNLAP, PtMhhtrs, NEW YORK