An engrossing tale of the Sahara Desert, of encounters with wild animals and crafty Arabs.

DON St.u.r.dY 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 St.u.r.dY 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 St.u.r.dY 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 St.u.r.dY 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. Ill.u.s.trated.

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 Pa.s.s; Or, The Midnight Call for a.s.sistance.

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. Ill.u.s.trated.

Every Volume Complete in Itself.

In this line of books there is revealed the whole workings of a great American railroad system. There are adventures in abundance--railroad wrecks, dashes through forest fires, the pursuit of a "wildcat"

locomotive, the disappearance of a pay car with a large sum of money on board--but there is much more than this--the intense rivalry among railroads and railroad men, the working out of running schedules, the getting through "on time" in spite of all obstacles, and the manipulation of railroad securities by evil men who wish to rule or ruin.

RALPH OF THE ROUND HOUSE; Or, Bound to Become a Railroad Man.

RALPH IN THE SWITCH TOWER; Or, Clearing the Track.

RALPH ON THE ENGINE; Or, The Young Fireman of the Limited Mail.

RALPH ON THE OVERLAND EXPRESS; Or, The Trials and Triumphs of a Young Engineer.

RALPH, THE TRAIN DISPATCHER; Or, the Mystery of the Pay Car.

RALPH ON THE ARMY TRAIN; Or, The Young Railroader's Most Daring Exploit.

RALPH ON THE MIDNIGHT FLYER; Or, The Wreck at Shadow Valley.

RALPH AND THE MISSING MAIL POUCH; Or, The Stolen Government Bonds.

GROSSET & DUNLAP, PUBLISHERS, NEW YORK

THE RIDDLE CLUB BOOKS

By ALICE DALE HARDY

Individual Colored Wrappers. Attractively Ill.u.s.trated.