By Clair W. Hayes
Author of the Famous “Boy Allies” Series.
The adventures of two boys with the Pennsylvania State Police.
For Boys 12 to 16 Years.
All Copyrighted Titles.
Cloth Bound, with Attractive Cover Designs.
Price, 50 cents each
Postage 10c extra
THE BOY TROOPERS ON THE TRAIL
THE BOY TROOPERS IN THE NORTHWEST
THE BOY TROOPERS ON STRIKE DUTY
THE BOY TROOPERS AMONG THE WILD MOUNTAINEERS
For sale by all booksellers, or sent on receipt of price by the Publishers