This is a story of juvenile adventure which will be sure to please the boys, and adults, too, for that matter. It is a clean, vivid description of a flying machine trip to Mexico, four lads of about sixteen being the principal characters. The boys meet with many adventures, under the mountains as well as in the air above them. The Secret of the Crater, the Burning Mountain, the strange habits of the Devil's Pool, hold the reader to the end, while the humorous sayings and doings of "Jimmie" supply a pleasing variety.

THE FLYING MACHINE BOYS IN THE WILDS; or, the Mystery of the Andes.

The story deals principally with old Peru. Pressed in the Secret Service after their return from Mexico, Jimmy, Carl, Ben and Glenn visit "the roof of the world" in quest of a man who wrecked, as far as he was able to do so, a great New York Trust Company. The tale carries the flavor of the mountains, the mystery of strange temples thousands of years old, and treats the reader, as well, to some delightful juvenile adventures. "Jimmie" comes out strong in this book.

THE FLYING MACHINE BOYS ON DUTY; or, the Clue Above the Clouds.

If you have ever read in the daily newspapers sensational accounts of the pursuit and capture of men who smuggle Chinamen and opium into the country, you don't have to wonder whether the events recorded in this story are true to life. The Flying Machine Boys find false beacons on headlands washed by the Pacific, and they also find the man who murdered a watchman and robbed a bank, living above the clouds. "Jimmie" is particularly funny in this story.

THE FLYING MACHINE BOYS ON SECRET SERVICE; or, the Capture in the Air.

This is a tale of adventure in the wilds of British Columbia. It is not exactly a detective story, although it deals with the work of the boys in capturing a man who abducted a postoffice inspector from his private room in the postoffice building at Washington. "Jimmie" reads from his "dreambook" in this tale. For variety of interesting adventures this story equals any other in this series.


For sale by all booksellers, or sent post-paid on receipt of price by the publishers,

A. L. BURT COMPANY, 52-58 Duane Street, New York.