BOY AVIATORS' SERIES
   By Captain Wilbur Lawton
   Absolutely Modern Stories for Boys
   Cloth Bound, Price, 50c per volume
   The Boy Aviators in Nicaragua
   Or, Leagued With Insurgents
     The launching of this Twentieth Century series marks the  inauguration of a new era in boys' books--the "wonders of modern  science" epoch. Frank and Harry Chester, the Boy Aviators, are the  heroes of this exciting, red-blooded tale of adventure by air and  land in the turbulent Central American republic. The two brothers  with their $10,000 prize aeroplane, the Golden Eagle, rescue a chum  from death in the clutches of the Nicaraguans, discover a lost  treasure valley of the ancient Toltec race, and in so doing almost  lose their own lives in the Abyss of the White Serpents, and have  many other exciting experiences, including being blown far out to  sea in their air-skimmer in a tropical storm. It would be unfair to  divulge the part that wireless plays in rescuing them from their  predicament. In a brand new field of fiction for boys the Chester  brothers and their aeroplane seem destined to fill a top-notch  place. These books are technically correct, wholesomely thrilling  and geared up to third speed.
   Sold by Booksellers Everywhere
   HURST & CO.--Publishers--NEW YORK