New York, The Century co., 1919. — 428 p
The great World War was more than two-thirds over when America entered the struggle; and yet in a sense this country was in the war from its very beginning. Three great inventions controlled the character of the fighting and made it different from any other the world has ever seen. These three inventions were American. The submarine was our invention; it carried the war into the sea. The airplane was an American invention; it carried the war into the sky. We invented the machine-gun; it drove the war into the ground.
The War in and under the ground
Hand-grenades and trench mortars
Guns that fire themselves
Guns and super-guns
The battle of the chemists
Tanks
The war in the air
Ships that sail the skies
Getting the range
Talking in the sky
Warriors of the paint-brush
Submarines
Getting the best of the u-boat
“Devil’s eggs”
Surface boats
Reclaiming the victims of the submarines