The Secret Wireless
A STORY OF THE CAMP BRADY PATROL. 320 Pages.
The Hidden Aerial
THE SPY LINE ON THE MOUNTAIN. 332 Pages.
Cloth Bound—Colored Frontispiece
Price, $1.75 net each
The Young Wireless Operator—Afloat
or
HOW ROY MERCER WON HIS SPURS IN THE MERCHANT MARINE