# Works of Jules Verne/Twenty Thousand Leagues Under the Sea/Chapter 13

CHAPTER XIII THE BLACK RIVER
The portion of the terrestrial globe which is covered by water is estimated at upward of eighty millions of acres. This fluid mass comprises two billions, two hundred and fifty millions of cubic miles, forming a spherical body of a diameter of sixty leagues, the weight of which would be three quintillions of tons. To comprehend the meaning of these figures, it is necessary to observe that a quintillion is to a billion as a billion is to unity; in other words, there are as many billions in a quintillion as there are units in a billion. This mass of fluid is equal to about the quantity of water which would be discharged by all the rivers of the earth in forty thousand years.
During the geological epochs, the igneous period succeeded to the aqueous. The ocean originally prevailed everywhere. Then by degrees, in the silurian period, the tops of the mountains began to appear, the islands emerged, then disappeared in partial deluges, reappeared, became settled, formed continents, till at length the earth became geographically arranged, as we see in the present day. The solid had wrested from the liquid thirty-seven million, six hundred and fifty-seven square miles, equal to twelve billions, nine hundred and sixty millions of acres.
The shape of continents allows us to divide the waters into five great portions: the Arctic or Frozen Ocean, the Antarctic or Frozen Ocean, the Indian, the Atlantic, and the Pacific Oceans.
​The Pacific Ocean extends from north to south between the two polar circles, and from east to west between Asia and America, over an extent of 145 degrees of longitude. It is the quietest of seas; its currents are broad and slow, it has medium tides and abundant rain. Such was the ocean that my fate destined me first to travel over under these strange conditions.
"Sir," said Captain Nemo, "we will, if you please, take our bearings and fix the starting-point of this voyage. It is a quarter to twelve and I will now go up again to the surface"
The captain pressed an electric clock three times. The pumps began to drive the water from the tanks; the needle of the manometer marked by a different pressure the ascent of the Nautilus, then it stopped.
"We have arrived," said the captain. I went to the central staircase which opened on to the platform, clambered up the iron steps, and found myself on the upper part of the Nautilus.
The platform was only three feet out of water. The front and back of the Nautilus was of that spindle-shape which caused it justly to be compared to a cigar. I noticed that its iron plates, slightly overlaying each other, resembled the shell which clothes the bodies of our large terrestrial reptiles. It explained to me how natural it was, in spite of all glasses, that this boat should have been taken for a marine animal.
Toward the middle of the platform the long-boat, half buried in the hull of the vessel, formed a slight excrescence. Fore and aft rose two cages of medium height with inclined sides, and partly closed by thick lenticular glasses; one destined for the steersman who directed the Nautilus, the other containing a brillian lantern to give light on the road.
The sea was beautiful, the sky pure. Scarcely could the long vehicle feel the broad undulations of the ocean. As light breeze from the east rippled the surface of the waters. The horizon, free from fog, made observation easy. Nothing was in sight Not a quicksand, not an island. A vast desert.
Captain Nemo, by the help of his sextant, took the altitude of the sun, which ought also to give the latitude. He waited for some moments till its disk touched the horizon. ​While taking observations not a muscle moved; the instrument could not have been more motionless in a hand of marble.
"Twelve o'clock, sir," said he. "When you like———" I cast a last look upon the sea, slightly yellowed by the Japanese coast, and descended to the saloon.
"And now, sir, I leave you to your studies," added the captain; "our course is E. N. E., our depth is twenty-six fathoms. Here are maps on a large scale by which you may follow it. The saloon is at your disposal, and with your permission I will retire." Captain Nemo bowed, and I remained alone, lost in thoughts all bearing on the commander of the Nautilus.
For a whole hour was I deep in these reflections, seeking to pierce this mystery so interesting to me. Then my eyes fell upon the vast planisphere spread upon the table, and I placed my finger on the very spot where the given latitude and longitude crossed.
The sea has its large rivers like the continents. They are special currents known by their temperature and their color. The most remarkable of these is known by the name of the Gulf Stream. Science has decided on the globe the direction of five principal currents : one in the North Atlantic, a second in the South, a third in the North Pacific, a fourth in the South, and a fifth in the Southern Indian Ocean. It is even probable that a sixth current existed at one time or another in the Northern Indian Ocean, when the Caspian and Aral Seas formed but one vast sheet of water.
At this point indicated on the planisphere one of these currents was rolling, the Kuro-Scivo of the Japanese, the Black River, which, leaving the Gulf of Bengal where it is warmed by the perpendicular rays of a tropical sun, crosses the Straits of Malacca along the coast of Asia, turns into the North Pacific to the Aleutian Islands, carrying with it trunks of camphor-trees and other indigenous productions, and edging the waves of the ocean with the pure indigo of its warm water. It was this current that the Nautilus was to follow. I followed it with my eye; saw it lose itself in the vastness of the Pacific, and felt myself drawn with it, when Ned Land and Conseil appeared at the door of the saloon.
​My two brave companions remained petrified at the sight of the wonders spread before them.
"Where are we—where are we?" exclaimed the Canadian. "In the museum at Quebec?"
"My friends," I answered, making a sign to them to enter, "you are not in Canada, but on board the Nautilus, fifty yards below the level of the sea."
"But, M. Aronnax," said Ned Land, "can you tell me how many men there are on board? Ten, twenty, fifty, a hundred?"
"I cannot answer you, Mr. Land; it is better to abandon for a time all idea of seizing the Nautilus or escaping from it. This ship is a masterpiece of modern industry, and I should be sorry not to have seen it. Many people would accept the situation forced upon us, if only to move among such wonders. So be quiet and let us try and see what passes around us."
"See!" exclaimed the harpooner, "but we can see nothing in this iron prison! We are walking—we are sailing—blindly."
Ned Land had scarcely pronounced these words when all was suddenly darkness. The luminous ceiling was gone, and so rapidly that my eyes received a very painful impression.
We remained mute, not stirring, and not knowing what surprise awaited us, whether agreeable or disagreeable. A sliding noise was heard: one would have said that panels were working at the sides of the Nautilus.
"It is the end of the end!" said Ned Land.
Suddenly light broke at each side of the saloon, through two oblong openings. The liquid mass appeared vividly lit up by the electric gleam. Two crystal plates separated us from the sea. At first I trembled at the thought that this frail partition might break, but strong bands of copper bound them, giving an almost infinite power of resistance.
The sea was distinctly visible for a mile all round the Nautilus. What a spectacle! What pen can describe it? Who could paint the effects of the light through those transparent sheets of water, and the softness of the successive gradations from the lower to the superior strata of the ocean?
We know the transparency of the sea, and that its ​clearness is far beyond that of rock water. The mineral and organic substances which it holds in suspension heighten its transparency. In certain parts of the ocean at the Antilles, under seventy-five fathoms of water, can be seen with surprising clearness a bed of sand. The penetrating power of the solar rays does not seem to cease for a depth of one hundred and fifty fathoms. But in this middle fluid traveled over by the Nautilus the electric brightness was produced even in the bosom of the waves. It was no longer luminous water, but liquid light.
On each side a window opened into this unexplored abyss. The obscurity of the saloon showed to advantage the brightness outside, and we looked out as if this pure crystal had been the glass of an immense aquarium.
"You wished to see, friend Ned; well, you see now."
"Curious! curious!" muttered the Canadian, who, forgetting his ill-temper, seemed to submit to some irresistible attraction; "and one would come further than this to admire such a sight!"
"Ah!" thought I to myself, "I understand the life of this man; he has made a world apart for himself, in which he treasures all his greatest wonders."
For two whole hours an aquatic army escorted the Nautilus. During their games, their bounds, while rivaling each other in beauty, brightness, and velocity, I distinguished the green labre; the banded mullet, marked by a double line of black; the round-tailed goby, of a white color, with violet spots on the back; the Japanese scombrus, a beautiful mackerel of these seas, with a blue body and silvery head; the brilliant azurors, whose name alone defies description; some banded spares, with variegated fins of blue and yellow; some aclostones, the woodcocks of the seas, some specimens of which attain a yard in length; Japanese salamanders, spider lampreys, serpents six feet long, with eyes small and lively, and a huge mouth bristling with teeth; with many other species.
Our imagination was kept at its height; interjections followed quickly on each other. Ned named the fish, and Conseil classed them. I was in ecstasies with the vivacity of their movements and the beauty of their forms. Never had it been given to me to surprise these animals, alive and at liberty, in their natural element. I will not mention ​all the varieties which passed before my dazzled eyes, all the collection of the seas of China and Japan. These fish, more numerous than the birds of the air, came, attracted, no doubt, by the brilliant focus of the electric light.
Suddenly there was daylight in the saloon, the iron panels closed again, and the enchanting vision disappeared. But for a long time I dreamed on till my eyes fell on the instruments hanging on the partition. The compass still showed the course to be E. N. E., the manometer indicated a pressure of five atmospheres, equivalent to a depth of twenty-five fathoms, and the electric log gave a speed of fifteen miles an hour. I expected Captain Nemo, but he did not appear. The clock marked the hour of five.
Ned Land and Conseil returned to their cabin, and I retired to my chamber. My dinner was ready. It was composed of turtle soup made of the most delicate hawks-bills, of a surmullet served with puff paste (the liver of which, prepared by itself, was most delicious), and fillets of the emperor-holocanthus, the savor of which seemed to me superior even to salmon.
I passed the evening reading, writing, and thinking. Then sleep overpowered me, and I stretched myself on my couch of zostera, and slept profoundly, while the Nautilus was gliding rapidly through the current of the Black River.
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