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<h2> CHAPTER THIRTY-FIRST. </h2>
<p>Departure in the Night-time.—All Three.—Kennedy's Instincts.—Precautions.—The
Course of the Shari River.—Lake Tchad.—The Water of the Lake.—The
Hippopotamus.—One Bullet thrown away.</p>
<p>About three o'clock in the morning, Joe, who was then on watch, at length
saw the city move away from beneath his feet. The Victoria was once again
in motion, and both the doctor and Kennedy awoke.</p>
<p>The former consulted his compass, and saw, with satisfaction, that the
wind was carrying them toward the north-northeast.</p>
<p>"We are in luck!" said he; "every thing works in our favor: we shall
discover Lake Tchad this very day."</p>
<p>"Is it a broad sheet of water?" asked Kennedy.</p>
<p>"Somewhat, Dick. At its greatest length and breadth, it measures about one
hundred and twenty miles."</p>
<p>"It will spice our trip with a little variety to sail over a spacious
sheet of water."</p>
<p>"After all, though, I don't see that we have much to complain of on that
score. Our trip has been very much varied, indeed; and, moreover, we are
getting on under the best possible conditions."</p>
<p>"Unquestionably so; excepting those privations on the desert, we have
encountered no serious danger."</p>
<p>"It is not to be denied that our noble balloon has behaved wonderfully
well. To-day is May 12th, and we started on the 18th of April. That makes
twenty-five days of journeying. In ten days more we shall have reached our
destination."</p>
<p>"Where is that?"</p>
<p>"I do not know. But what does that signify?"</p>
<p>"You are right again, Samuel! Let us intrust to Providence the care of
guiding us and of keeping us in good health as we are now. We don't look
much as though we had been crossing the most pestilential country in the
world!"</p>
<p>"We had an opportunity of getting up in life, and that's what we have
done!"</p>
<p>"Hurrah for trips in the air!" cried Joe. "Here we are at the end of
twenty-five days in good condition, well fed, and well rested. We've had
too much rest in fact, for my legs begin to feel rusty, and I wouldn't be
vexed a bit to stretch them with a run of thirty miles or so!"</p>
<p>"You can do that, Joe, in the streets of London, but in fine we set out
three together, like Denham, Clapperton, and Overweg; like Barth,
Richardson, and Vogel, and, more fortunate than our predecessors here, we
are three in number still. But it is most important for us not to
separate. If, while one of us was on the ground, the Victoria should have
to ascend in order to escape some sudden danger, who knows whether we
should ever see each other again? Therefore it is that I say again to
Kennedy frankly that I do not like his going off alone to hunt."</p>
<p>"But still, Samuel, you will permit me to indulge that fancy a little.
There is no harm in renewing our stock of provisions. Besides, before our
departure, you held out to me the prospect of some superb hunting, and
thus far I have done but little in the line of the Andersons and
Cummings."</p>
<p>"But, my dear Dick, your memory fails you, or your modesty makes you
forget your own exploits. It really seems to me that, without mentioning
small game, you have already an antelope, an elephant, and two lions on
your conscience."</p>
<p>"But what's all that to an African sportsman who sees all the animals in
creation strutting along under the muzzle of his rifle? There! there! look
at that troop of giraffes!"</p>
<p>"Those giraffes," roared Joe; "why, they're not as big as my fist."</p>
<p>"Because we are a thousand feet above them; but close to them you would
discover that they are three times as tall as you are!"</p>
<p>"And what do you say to yon herd of gazelles, and those ostriches, that
run with the speed of the wind?" resumed Kennedy.</p>
<p>"Those ostriches?" remonstrated Joe, again; "those are chickens, and the
greatest kind of chickens!"</p>
<p>"Come, doctor, can't we get down nearer to them?" pleaded Kennedy.</p>
<p>"We can get closer to them, Dick, but we must not land. And what good will
it do you to strike down those poor animals when they can be of no use to
you? Now, if the question were to destroy a lion, a tiger, a cat, a hyena,
I could understand it; but to deprive an antelope or a gazelle of life, to
no other purpose than the gratification of your instincts as a sportsman,
seems hardly worth the trouble. But, after all, my friend, we are going to
keep at about one hundred feet only from the soil, and, should you see any
ferocious wild beast, oblige us by sending a ball through its heart!"</p>
<p>The Victoria descended gradually, but still keeping at a safe height, for,
in a barbarous, yet very populous country, it was necessary to keep on the
watch for unexpected perils.</p>
<p>The travellers were then directly following the course of the Shari. The
charming banks of this river were hidden beneath the foliage of trees of
various dyes; lianas and climbing plants wound in and out on all sides and
formed the most curious combinations of color. Crocodiles were seen
basking in the broad blaze of the sun or plunging beneath the waters with
the agility of lizards, and in their gambols they sported about among the
many green islands that intercept the current of the stream.</p>
<p>It was thus, in the midst of rich and verdant landscapes that our
travellers passed over the district of Maffatay, and about nine o'clock in
the morning reached the southern shore of Lake Tchad.</p>
<p>There it was at last, outstretched before them, that Caspian Sea of
Africa, the existence of which was so long consigned to the realms of
fable—that interior expanse of water to which only Denham's and
Barth's expeditions had been able to force their way.</p>
<p>The doctor strove in vain to fix its precise configuration upon paper. It
had already changed greatly since 1847. In fact, the chart of Lake Tchad
is very difficult to trace with exactitude, for it is surrounded by muddy
and almost impassable morasses, in which Barth thought that he was doomed
to perish. From year to year these marshes, covered with reeds and papyrus
fifteen feet high, become the lake itself. Frequently, too, the villages
on its shores are half submerged, as was the case with Ngornou in 1856,
and now the hippopotamus and the alligator frisk and dive where the
dwellings of Bornou once stood.</p>
<p>The sun shot his dazzling rays over this placid sheet of water, and toward
the north the two elements merged into one and the same horizon.</p>
<p>The doctor was desirous of determining the character of the water, which
was long believed to be salt. There was no danger in descending close to
the lake, and the car was soon skimming its surface like a bird at the
distance of only five feet.</p>
<p>Joe plunged a bottle into the lake and drew it up half filled. The water
was then tasted and found to be but little fit for drinking, with a
certain carbonate-of-soda flavor.</p>
<p>While the doctor was jotting down the result of this experiment, the loud
report of a gun was heard close beside him. Kennedy had not been able to
resist the temptation of firing at a huge hippopotamus. The latter, who
had been basking quietly, disappeared at the sound of the explosion, but
did not seem to be otherwise incommoded by Kennedy's conical bullet.</p>
<p>"You'd have done better if you had harpooned him," said Joe.</p>
<p>"But how?"</p>
<p>"With one of our anchors. It would have been a hook just big enough for
such a rousing beast as that!"</p>
<p>"Humph!" ejaculated Kennedy, "Joe really has an idea this time—"</p>
<p>"Which I beg of you not to put into execution," interposed the doctor.
"The animal would very quickly have dragged us where we could not have
done much to help ourselves, and where we have no business to be."</p>
<p>"Especially now since we've settled the question as to what kind of water
there is in Lake Tchad. Is that sort of fish good to eat, Dr. Ferguson?"</p>
<p>"That fish, as you call it, Joe, is really a mammiferous animal of the
pachydermal species. Its flesh is said to be excellent and is an article
of important trade between the tribes living along the borders of the
lake."</p>
<p>"Then I'm sorry that Mr. Kennedy's shot didn't do more damage."</p>
<p>"The animal is vulnerable only in the stomach and between the thighs.
Dick's ball hasn't even marked him; but should the ground strike me as
favorable, we shall halt at the northern end of the lake, where Kennedy
will find himself in the midst of a whole menagerie, and can make up for
lost time."</p>
<p>"Well," said Joe, "I hope then that Mr. Kennedy will hunt the hippopotamus
a little; I'd like to taste the meat of that queer-looking beast. It
doesn't look exactly natural to get away into the centre of Africa, to
feed on snipe and partridge, just as if we were in England."</p>
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