"I propose to tow out my gun-boat to sea and when within range of the enemy;s guns it sinks below the water's surface so as to leave no trace on the surface of its approach, a self-acting apparatus keeping it at the depth required. When within a few rods of the enemy it leaps to the surface and the two vessels come into contact before the enemy can fire a gun.
"Placed in the bow of the gun-boat is a small mortar containing a self-exploding shell. As it strikes the engines are reversed, the gun-boat sinks below the surface and goes noiselessly on its way toward another ship.
"After a few ships are sunk the enemy can scarcely have the temerity to remain in our waters...."
It's a Submarine's Life For Me. --Old B-R'er