11. THE MOTOR BOYS OVER THE OCEAN
or A Marvelous Rescue in Mid-Air
12. THE MOTOR BOYS ON THE WING
or Seeking the Airship Treasure
CUPPLES & LEON COMPANY, Publishers New York
THE BOYS’ OUTING LIBRARY
12mo. Cloth. Illustrated. Jacket in full color.
Price, per volume, 50 cents. Postage 10 cents additional.