Motorless Boats of Foreign Wars; Naval Birdmen in the Making; Motor Boatmen Became Semaphore Experts; Bermuda to N.Y. In the Winning Sub Chaser; How the Chasers Got Their Gas; What Were the Faults of the Sub Chasers; What Motor Boatmen Had to Know; Sub Chasers (110 ft) What's Her Speed; Sub Chasers (100 ft) Where They Worked