CONTENTS.CHAPTERI. The Polar ShipII. A Mysterious RobberyIII. Off for the South PoleIV. A Message from the AirV. A Tragedy of the SkiesVI. A Strange CollisionVII. Adrift on a Floating IslandVIII. Caught in the FlamesIX. A Queer AccidentX. The Professor is KidnappedXI. A Battle in the AirXII. AdriftXIII. The Ship of Olaf the VikingXIV. Marooned on an Ice FloeXV. Dynamiting the ReefXVI. A Polar StormXVII. The Great BarrierXVIII. The Professor Takes a Cold BathXIX. Facing the Polar NightXX. A Mysterious LightXXI. A Penguin HuntXXII. The Flaming MountainXXIII. Adrift Above the SnowsXXIV. Swallowed by a CrevasseXXV. The Viking's ShipXXVI. Caught in a TrapXXVII. The Fate of the DirigibleXXVIII. The Heart of the AntarcticTHE BOY AVIATORS' POLAR DASHORFACING DEATH IN THE ANTARCTICCHAPTER I.THE POLAR SHIP."Oh, it's southward ho, where the breezes blow; we're off for thepole, yo, ho! heave ho!""Is that you, Harry?" asked a lad of about seventeen, without lookingup from some curious-looking frames and apparatus over which he wasworking in the garage workshop back of his New York home on MadisonAvenue."Ay! ay! my hearty," responded his brother, giving his trousers anautical hitch; "you seem to have forgotten that to-day is the day weare to see the polar ship.""Not likely," exclaimed Frank Chester, flinging down his wrench andpassing his hand through a mop of curly hair; "what time is it?"