GROSSET & DUNLAP, PUBLISHERS, NEW YORK THE DON STURDY SERIES By VICTOR APPLETON =Individual Colored Wrappers and Text Illustrations by= =WALTER S. ROGERS= =Every Volume Complete in Itself.= In company with his uncles, one a mighty hunter and the other a noted scientist, Don Sturdy travels far and wide, gaining much useful knowledge and meeting many thrilling adventures. DON STURDY ON THE DESERT OF MYSTERY; An engrossing tale of the Sahara Desert, of encounters with wild animals and crafty Arabs. DON STURDY WITH THE BIG SNAKE HUNTERS; Don’s uncle, the hunter, took an order for some of the biggest snakes to be found in South America--to be delivered alive! DON STURDY IN THE TOMBS OF GOLD; A fascinating tale of exploration and adventure in the Valley of Kings in Egypt. DON STURDY ACROSS THE NORTH POLE; A great polar blizzard nearly wrecks the airship of the explorers. DON STURDY IN THE LAND OF VOLCANOES; An absorbing tale of adventures among the volcanoes of Alaska. DON STURDY IN THE PORT OF LOST SHIPS; This story is just full of exciting and fearful experiences on the sea. DON STURDY AMONG THE GORILLAS; A thrilling story of adventure in darkest Africa. Don is carried over a mighty waterfall into the heart of gorilla land. GROSSET & DUNLAP, _Publishers_, NEW YORK 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 fascinating, so strictly up-to-date and accurate, we feel sure all lads will peruse them with great delight. 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, _Publishers_, NEW YORK Transcriber’s Notes: --Text in italics is enclosed by underscores (_italics_); text in bold by “equal” signs (=bold=). --Except for the frontispiece, illustrations have been moved to follow the text that they illustrate. --Printer's, punctuation and spelling inaccuracies were silently corrected. --Archaic and variable spelling has been preserved. --Variations in hyphenation and compound words have been preserved. --The author’s em-dash style has been retained. End of Project Gutenberg's Right Half Hollins, by Ralph Henry Barbour