บทที่ บทที่ 30 · THE MEDITERRANEAN IN FORTY-EIGHT HOURS

EDITERRANEAN IN FORTY-EIGHT HOURS

The Mediterranean, the blue sea par excellence, “the great sea” of the

Hebrews, “the sea” of the Greeks, the “mare nostrum” of the Romans,

bordered by orange-trees, aloes, cacti, and sea-pines; embalmed with

the perfume of the myrtle, surrounded by rude mountains, saturated with

pure and transparent air, but incessantly worked by underground fires;

a perfect battlefield in which Neptune and Pluto still dispute the

empire of the world!

It is upon these banks, and on these waters, says Michelet, that man is

renewed in one of the most powerful climates of the globe. But,

beautiful as it was, I could only take a rapid glance at the basin

whose superficial area is two million of square yards. Even Captain

Nemo’s knowledge was lost to me, for this puzzling person did not

appear once during our passage at full speed. I estimated the course

which the _Nautilus_ took under the waves of the sea at about six

hundred leagues, and it was accomplished in forty-eight hours. Starting

on the morning of the 16th of February from the shores of Greece, we

had crossed the Straits of Gibraltar by sunrise on the 18th.

It was plain to me that this Mediterranean, enclosed in the midst of

those countries which he wished to avoid, was distasteful to Captain

Nemo. Those waves and those breezes brought back too many remembrances,

if not too many regrets. Here he had no longer that independence and

that liberty of gait which he had when in the open seas, and his

_Nautilus_ felt itself cramped between the close shores of Africa and

Europe.

Our speed was now twenty-five miles an hour. It may be well understood

that Ned Land, to his great disgust, was obliged to renounce his

intended flight. He could not launch the pinnace, going at the rate of

twelve or thirteen yards every second. To quit the _Nautilus_ under

such conditions would be as bad as jumping from a train going at full

speed—an imprudent thing, to say the least of it. Besides, our vessel

only mounted to the surface of the waves at night to renew its stock of

air; it was steered entirely by the compass and the log.

I saw no more of the interior of this Mediterranean than a traveller by

express train perceives of the landscape which flies before his eyes;

that is to say, the distant horizon, and not the nearer objects which

pass like a flash of lightning.

We were then passing between Sicily and the coast of Tunis. In the

narrow space between Cape Bon and the Straits of Messina the bottom of

the sea rose almost suddenly. There was a perfect bank, on which there

was not more than nine fathoms of water, whilst on either side the

depth was ninety fathoms.

The _Nautilus_ had to manœuvre very carefully so as not to strike

against this submarine barrier.

I showed Conseil, on the map of the Mediterranean, the spot occupied by

this reef.

“But if you please, sir,” observed Conseil, “it is like a real isthmus

joining Europe to Africa.”

“Yes, my boy, it forms a perfect bar to the Straits of Lybia, and the

soundings of Smith have proved that in former times the continents

between Cape Boco and Cape Furina were joined.”

“I can well believe it,” said Conseil.

“I will add,” I continued, “that a similar barrier exists between

Gibraltar and Ceuta, which in geological times formed the entire

Mediterranean.”

“What if some volcanic burst should one day raise these two barriers

above the waves?”

“It is not probable, Conseil.”

“Well, but allow me to finish, please, sir; if this phenomenon should

take place, it will be troublesome for M. Lesseps, who has taken so

much pains to pierce the isthmus.”

“I agree with you; but I repeat, Conseil, this phenomenon will never

happen. The violence of subterranean force is ever diminishing.

Volcanoes, so plentiful in the first days of the world, are being

extinguished by degrees; the internal heat is weakened, the temperature

of the lower strata of the globe is lowered by a perceptible quantity

every century to the detriment of our globe, for its heat is its life.”

“But the sun?”

“The sun is not sufficient, Conseil. Can it give heat to a dead body?”

“Not that I know of.”

“Well, my friend, this earth will one day be that cold corpse; it will

become uninhabitable and uninhabited like the moon, which has long

since lost all its vital heat.”

“In how many centuries?”

“In some hundreds of thousands of years, my boy.”

“Then,” said Conseil, “we shall have time to finish our journey—that

is, if Ned Land does not interfere with it.”

And Conseil, reassured, returned to the study of the bank, which the

_Nautilus_ was skirting at a moderate speed.

During the night of the 16th and 17th February we had entered the

second Mediterranean basin, the greatest depth of which was 1,450

fathoms. The _Nautilus_, by the action of its screw, slid down the

inclined planes and buried itself in the lowest depths of the sea.

On the 18th of February, about three o’clock in the morning, we were at

the entrance of the Straits of Gibraltar. There once existed two

currents: an upper one, long since recognised, which conveys the waters

of the ocean into the basin of the Mediterranean; and a lower

counter-current, which reasoning has now shown to exist. Indeed, the

volume of water in the Mediterranean, incessantly added to by the waves

of the Atlantic and by rivers falling into it, would each year raise

the level of this sea, for its evaporation is not sufficient to restore

the equilibrium. As it is not so, we must necessarily admit the

existence of an under-current, which empties into the basin of the

Atlantic through the Straits of Gibraltar the surplus waters of the

Mediterranean. A fact indeed; and it was this counter-current by which

the _Nautilus_ profited. It advanced rapidly by the narrow pass. For

one instant I caught a glimpse of the beautiful ruins of the temple of

Hercules, buried in the ground, according to Pliny, and with the low

island which supports it; and a few minutes later we were floating on

the Atlantic.

CHAPT