CHAPTER I.
THE PROFESSOR'S PERSISTENCE .
CHAPTER II.
THE PROFESSOR'S FIRST EXCURSION .
CHAPTER III.
THE PROFESSOR'S RETURN .
CHAPTER IV.
THE INVESTIGATION .
CHAPTER V.
THE INVESTIGATION CONTINUED .
CHAPTER VI.
TWO WOUNDED HANDS .
CHAPTER VII.
THE TWO REQUESTS .
CHAPTER VIII.
QUIET WEEKS .
CHAPTER IX.
AN EXPLORING PARTY .
CHAPTER X.
AN ACCIDENT?
CHAPTER XI.
FORCED SECLUSION .
CHAPTER XII.
AN ARREST .
CHAPTER XIII.
AN OLD CHEST .
CHAPTER XIV.
THE END OF THE PROFESSOR'S HOLIDAY .
THE END.