"All right, father," agreed Bob. "We'll be too busy seeing the sights
to want the plane, anyhow. When do we start?"

"In two days," said his father.

With this we take leave of the three chums, whose adventures on the
Mexican border have come to so successful a conclusion. But in the
next story of "The Radio Boys on Secret Service Duty" we shall follow
their further adventures after they reach the city by the Golden
Gate--adventures fully as thrilling as those on the Mexican border, in
which they become drawn into the plots of an international gang of
smugglers engaged in bringing Chinese coolies into the United States
in defiance of the Exclusion Laws.

THE END.

[Illustration: book.]

The

Radio Boys Series

BY GERALD BRECKENRIDGE

A new series of copyright titles for boys of all ages.

Cloth Bound, with Attractive Cover Designs

PRICE, 65 CENTS EACH

* * * * *

THE RADIO BOYS ON THE MEXICAN BORDER

THE RADIO BOYS ON SECRET SERVICE DUTY

THE RADIO BOYS WITH THE REVENUE GUARDS

THE RADIO BOYS' SEARCH FOR THE INCA'S TREASURE

THE RADIO BOYS RESCUE THE LOST ALASKA EXPEDITION

* * * * *

For sale by all booksellers, or sent postpaid on receipt of price by
the Publishers

A.L. BURT COMPANY

114-120 EAST 23rd STREET NEW YORK

[Illustration: book.]

The Ranger Boys Series

BY CLAUDE H. LA BELLE

A new series of copyright titles telling of the adventures of three
boys with the Forest Rangers in the state of Maine.

Handsome Cloth Binding.

PRICE, 65 CENTS EACH.

* * * * *

THE RANGER BOYS TO THE RESCUE

THE RANGER BOYS FIND THE HERMIT

THE RANGER BOYS AND THE BORDER SMUGGLERS

THE RANGER BOYS OUTWIT THE TIMBER THIEVES

THE RANGER BOYS AND THEIR REWARD

* * * * *

For sale by all booksellers, or sent postpaid on receipt of price by
the Publishers.

A.L. BURT COMPANY

114-120 East 23rd Street, New York

[Illustration: book.]

The Boy Troopers Series

BY CLAIR W. HAYES

Author of the Famous "Boy Allies" Series.

The adventures of two boys with the Pennsylvania State Police.

All Copyrighted Titles.

Cloth Bound, with Attractive Cover Designs.

PRICE, 65 CENTS EACH.

* * * * *

THE BOY TROOPERS ON THE TRAIL

THE BOY TROOPERS IN THE NORTHWEST

THE BOY TROOPERS ON STRIKE DUTY

THE BOY TR