Submarine Warfare of To-Day : How the Submarine Menace Was Met and Vanquished, With Descriptions of the Inventions and Devices Used, Fast Boats, Mystery Ships, Nets, Aircraft, &C., &C.

Submarine Warfare of To-Day : How the Submarine Menace Was Met and Vanquished, With Descriptions of the Inventions and Devices Used, Fast Boats, Mystery Ships, Nets, Aircraft, &C., &C.