By this prodigality of Nature, the doctor recognized
the splendid kingdom of Adamova.
"We are now beginning to trench upon the realm of
modern discovery. I have taken up the lost scent of preceding
travellers. It is a happy chance, my friends, for
we shall be enabled to link the toils of Captains Burton and
Speke with the explorations of Dr. Barth. We have left
the Englishmen behind us, and now have caught up with
the Hamburger. It will not be long, either, before we
arrive at the extreme point attained by that daring explorer."
"It seems to me that there is a vast extent of country
between the two explored routes," remarked Kennedy;
"at least, if I am to judge by the distance that we have
made."
"It is easy to determine: take the map and see what
is the longitude of the southern point of Lake Ukereoue,
reached by Speke."
"It is near the thirty-seventh degree."
"And the city of Yola, which we shall sight this evening,
and to which Barth penetrated, what is its position?"
"It is about in the twelfth degree of east longitude."
"Then there are twenty-five degrees, or, counting sixty
miles to each, about fifteen hundred miles in all."
"A nice little walk," said Joe, "for people who have
to go on foot.
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