《The Submarine Boys and the Middies》 - 免费有声读物

The Pollard is about to be taken to Anapolis, where the United States Navy will train their midshipmen how to run the submarine. Jack, Hal and Eph are all to help with training and to see the sights in Anapolis. They might even persuade the Navy to buy the second submarine, the Farnum. (Ann Boulais)