Index

The Deadly Torpedo
The Eye of the Submarine
Giant Guns
Guns that Fire One Thousand Shots per Minute
How Guns were Invented
How Guns were made to Shoot Straight
How Shells were Invented
How Torpedoes and Mines are Exploded
How We Came to Make Iron Ships
Measuring the Distance to the Enemy
Ships that Go Under the Sea
Ships that Go Up in the Air
Some Questions about Submarines
A Very Dangerous Occupation
War in the Air
What is an Explosive?