CHAPTER I. WHICH INTRODUCES OUR CHARACTERS AND THE SUBMARINE BOAT.
CHAPTER II. THE EXPEDITION STARTS.
CHAPTER III. ADVENTURES OF THE CAPTAIN AND THE PROFESSOR.
CHAPTER IV. IN THE ATLANTIC VALLEY.
CHAPTER V. THE SUNKEN WRECK.
CHAPTER VI. IMPRISONED IN A WRECK.
CHAPTER VII. A CLOSE CALL.
CHAPTER VIII. THE EARTHQUAKE.
CHAPTER IX. THE SUNKEN CITY.
CHAPTER X. BURIED UNDER THE SEA.
CHAPTER XI. ON THE REEF.
CHAPTER XII. A FEARFUL SITUATION.
CHAPTER XIII. THE END.
