Chapter

 1 I      |     guided and directed by the track it runs on.~“I do not follow
 2 II     |    following out to Soudan the track traced by Denham and Clapperton;
 3 XIV    | tortoise.~“We are on the right track,” said Dr. Ferguson. “There’
 4 XVII   |    speed.~“We are in the right track,” said the doctor, consulting
 5 XVIII  |      joy.~“We are on the right track!” he exclaimed. “To-day
 6 XXVI   |        arm, returned along the track by which he had come.~“You
 7 XXX    |       we are now upon the very track of Major Denham. It was
 8 XXX    | Heuglin has set out on Vogel’s track with the expedition sent
 9 XXXVIII|        he then followed in the track of Mungo Park and of Laing,
10 XLIX   |       will put us on the right track again.”~In fact, the Victoria