An engrossing tale of the Sahara Desert, of encounters with wild animals and crafty Arabs. DON STURDY WITH THE BIG SNAKE HUNTERS; Or, Lost in the Jungles of the Amazon. Don’s uncle, the hunter, took an order for some of the biggest snakes to be found in South America—to be delivered alive! The filling of that order brought keen excitement to the boy. DON STURDY IN THE TOMBS OF GOLD; Or, The Old Egyptian’s Great Secret. A fascinating tale of exploration and adventure in the Valley of Kings in Egypt. Once the whole party became lost in the maze of cavelike tombs far underground. DON STURDY ACROSS THE NORTH POLE; Or, Cast Away in the Land of Ice. Don and his uncles joined an expedition bound by air across the north pole. A great polar blizzard nearly wrecks the airship. DON STURDY IN THE LAND OF VOLCANOES; Or, The Trail of the Ten Thousand Smokes. An absorbing tale of adventures among the volcanoes of Alaska in a territory but recently explored. A story that will make Don dearer to his readers than ever. 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; Or, Winning the Ferberton Prize. THE RADIO BOYS AT OCEAN POINT; Or, The Message That Saved the Ship. THE RADIO BOYS AT THE SENDING STATION; Or, Making Good in the Wireless Room. THE RADIO BOYS AT MOUNTAIN PASS; Or, The Midnight Call for Assistance. THE RADIO BOYS TRAILING A VOICE; Or, Solving a Wireless Mystery. THE RADIO BOYS WITH THE FOREST RANGERS; Or, The Great Fire on Spruce Mountain. THE RADIO BOYS WITH THE ICEBERG PATROL; Or, Making Safe the Ocean Lanes. RADIO BOYS WITH THE FLOOD FIGHTERS; Or, Saving the City in the Valley. GROSSET & DUNLAP, PUBLISHERS, NEW YORK THE RAILROAD SERIES By ALLEN CHAPMAN Author of the “Radio Boys,” Etc. Uniform Style of Binding. Illustrated. Every Volume Complete in Itself.