THE END.

BOY AVIATORS' SERIES

By Captain Wilbur Lawton

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.

The Boy Aviators on Secret Service

Or, Working With Wireless

In this live-wire narrative of peril and adventure, laid in the Everglades of Florida, the spunky Chester Boys and their interesting chums, including Ben Stubbs, the maroon, encounter exciting experiences on Uncle Sam's service in a novel field. One must read this vivid, enthralling story of incident, hardship and pluck to get an idea of the almost limitless possibilities of the two greatest inventions of modern times—the aeroplane and wireless telegraphy. While gripping and holding the reader's breathless attention from the opening words to the finish, this swift-moving story is at the same time instructive and uplifting. As those readers who have already made friends with Frank and Harry Chester and their "bunch" know, there are few difficulties, no matter how insurmountable they may seem at first blush, that these up-to-date gritty youths cannot overcome with flying colors. A clean-cut, real boys' book of high voltage.