"I see we are beginning to understand one another, sir," said the Captain, half smiling. "You begin to see the possibility--I should say the success-- of this attempt. That which is impossible for an ordinary vessel is easy to the Nautilus. If a continent lies before the pole, it must stop before the continent; but if, on the contrary, the pole is washed by open sea, it will go even to the pole."
"Certainly," said I, carried away by the Captain's reasoning; "if the surface of the sea is solidified by the ice, the lower depths are free by the Providential law which has placed the maximum of density of the waters of the ocean one degree higher than freezing-point; and, if I am not mistaken, the portion of this iceberg which is above the water is as one to four to that which is below."
"Very nearly, sir; for one foot of iceberg above the sea there are three below it. If these ice mountains are not more than 300 feet above the surface, they are not more than 900 beneath. And what are 900 feet to the Nautilus?"
"Nothing, sir."
"It could even seek at greater depths that uniform temperature of sea-water, and there brave with impunity the thirty or forty degrees of surface cold."
"Just so, sir--just so," I replied, getting animated.
"The only difficulty," continued Captain Nemo, "is that of remaining several days without renewing our provision of air."
"Is that all? The Nautilus has vast reservoirs; we can fill them, and they will supply us with all the oxygen we want."
"Well thought of, M. Aronnax," replied the Captain, smiling. "But, not wishing you to accuse me of rashness, I will first give you all my objections."
"Have you any more to make?"
"Only one. It is possible, if the sea exists at the South Pole, that it may be covered; and, consequently, we shall be unable to come to the surface."
"Good, sir! but do you forget that the Nautilus is armed with a powerful spur, and could we not send it diagonally against these fields of ice, which would open at the shocks."
"Ah! sir, you are full of ideas to-day."
"Besides, Captain," I added, enthusiastically, "why should we not find the sea open at the South Pole as well as at the North? The frozen poles of the earth do not coincide, either in the southern or in the northern regions; and, until it is proved to the contrary, we may suppose either a continent or an ocean free from ice at these two points of the globe."
"I think so too, M. Aronnax," replied Captain Nemo. "I only wish you to observe that, after having made so many objections to my project, you are now crushing me with arguments in its favour!"
The preparations for this audacious attempt now began. The powerful pumps of the Nautilus were working air into the reservoirs and storing it at high pressure. About four o'clock, Captain Nemo announced the closing of the panels on the platform. I threw one last look at the massive iceberg which we were going to cross. The weather was clear, the atmosphere pure enough, the cold very great, being 12@ below zero; but, the wind having gone down, this temperature was not so unbearable. About ten men mounted the sides of the Nautilus, armed with pickaxes to break the ice around the vessel, which was soon free. The operation was quickly performed, for the fresh ice was still very thin. We all went below. The usual reservoirs were filled with the newly-liberated water, and the Nautilus soon descended. I had taken my place with Conseil in the saloon; through the open window we could see the lower beds of the Southern Ocean. The thermometer went up, the needle of the compass deviated on the dial. At about 900 feet, as Captain Nemo had foreseen, we were floating beneath the undulating bottom of the iceberg. But the Nautilus went lower still--it went to the depth of four hundred fathoms. The temperature of the water at the surface showed twelve degrees, it was now only ten; we had gained two. I need not say the temperature of the Nautilus was raised by its heating apparatus to a much higher degree; every manoeuvre was accomplished with wonderful precision.
"We shall pass it, if you please, sir," said Conseil.
"I believe we shall," I said, in a tone of firm conviction.
In this open sea, the Nautilus had taken its course direct to the pole, without leaving the fifty-second meridian. From 67@ 30' to 90@, twenty-two degrees and a half of latitude remained to travel; that is, about five hundred leagues. The Nautilus kept up a mean speed of twenty-six miles an hour-- the speed of an express train. If that was kept up, in forty hours we should reach the pole.
For a part of the night the novelty of the situation kept us at the window. The sea was lit with the electric lantern; but it was deserted; fishes did not sojourn in these imprisoned waters; they only found there a passage to take them from the Antarctic Ocean to the open polar sea. Our pace was rapid; we could feel it by the quivering of the long steel body. About two in the morning I took some hours' repose, and Conseil did the same. In crossing the waist I did not meet Captain Nemo: I supposed him to be in the pilot's cage. The next morning, the 19th of March, I took my post once more in the saloon. The electric log told me that the speed of the Nautilus had been slackened. It was then going towards the surface; but prudently emptying its reservoirs very slowly. My heart beat fast. Were we going to emerge and regain the open polar atmosphere? No! A shock told me that the Nautilus had struck the bottom of the iceberg, still very thick, judging from the deadened sound. We had in deed "struck," to use a sea expression, but in an inverse sense, and at a thousand feet deep. This would give three thousand feet of ice above us; one thousand being above the water-mark. The iceberg was then higher than at its borders--not a very reassuring fact. Several times that day the Nautilus tried again, and every time it struck the wall which lay like a ceiling above it. Sometimes it met with but 900 yards, only 200 of which rose above the surface. It was twice the height it was when the Nautilus had gone under the waves. I carefully noted the different depths, and thus obtained a submarine profile of the chain as it was developed under the water. That night no change had taken place in our situation. Still ice between four and five hundred yards in depth! It was evidently diminishing, but, still, what a thickness between us and the surface of the ocean! It was then eight. According to the daily custom on board the Nautilus, its air should have been renewed four hours ago; but I did not suffer much, although Captain Nemo had not yet made any demand upon his reserve of oxygen. My sleep was painful that night; hope and fear besieged me by turns: I rose several times. The groping of the Nautilus continued. About three in the morning, I noticed that the lower surface of the iceberg was only about fifty feet deep. One hundred and fifty feet now separated us from the surface of the waters. The iceberg was by degrees becoming an ice-field, the mountain a plain. My eyes never left the manometer. We were still rising diagonally to the surface, which sparkled under the electric rays. The iceberg was stretching both above and beneath into lengthening slopes; mile after mile it was getting thinner. At length, at six in the morning of that memorable day, the 19th of March, the door of the saloon opened, and Captain Nemo appeared.
"The sea is open!!" was all he said.
CHAPTER XIV
THE SOUTH POLE
I rushed on to the platform. Yes! the open sea, with but a few scattered pieces of ice and moving icebergs--a long stretch of sea; a world of birds in the air, and myriads of fishes under those waters, which varied from intense blue to olive green, according to the bottom. The thermometer marked 3@ C. above zero. It was comparatively spring, shut up as we were behind this iceberg, whose lengthened mass was dimly seen on our northern horizon.
"Are we at the pole?" I asked the Captain, with a beating heart.
"I do not know," he replied. "At noon I will take our bearings."
"But will the sun show himself through this fog?" said I, looking at the leaden sky.
"However little it shows, it will be enough," replied the Captain.
About ten miles south a solitary island rose to a height of one hundred and four yards. We made for it, but carefully, for the sea might be strewn with banks. One hour afterwards we had reached it, two hours later we had made the round of it. It measured four or five miles in circumference. A narrow canal separated it from a considerable stretch of land, perhaps a continent, for we could not see its limits. The existence of this land seemed to give some colour to Maury's theory. The ingenious American has remarked that, between the South Pole and the sixtieth parallel, the sea is covered with floating ice of enormous size, which is never met with in the North Atlantic. From this fact he has drawn the conclusion that the Antarctic Circle encloses considerable continents, as icebergs cannot form in open sea, but only on the coasts. According to these calculations, the mass of ice surrounding the southern pole forms a vast cap, the circumference of which must be, at least, 2,500 miles. But the Nautilus, for fear of running aground, had stopped about three cable-lengths from a strand over which reared a superb heap of rocks. The boat was launched; the Captain, two of his men, bearing instruments, Conseil, and myself were in it. It was ten in the morning. I had not seen Ned Land. Doubtless the Canadian did not wish to admit the presence of the South Pole. A few strokes of the oar brought us to the sand, where we ran ashore. Conseil was going to jump on to the land, when I held him back.
"Sir," said I to Captain Nemo, "to you belongs the honour of first setting foot on this land."
"Yes, sir," said the Captain, "and if I do not hesitate to tread this South Pole, it is because, up to this time, no human being has left a trace there."
Saying this, he jumped lightly on to the sand. His heart beat with emotion. He climbed a rock, sloping to a little promontory, and there, with his arms crossed, mute and motionless, and with an eager look, he seemed to take possession of these southern regions. After five minutes passed in this ecstasy, he turned to us.
"When you like, sir."
I landed, followed by Conseil, leaving the two men in the boat. For a long way the soil was composed of a reddish sandy stone, something like crushed brick, scoriae, streams of lava, and pumice-stones. One could not mistake its volcanic origin. In some parts, slight curls of smoke emitted a sulphurous smell, proving that the internal fires had lost nothing of their expansive powers, though, having climbed a high acclivity, I could see no volcano for a radius of several miles. We know that in those Antarctic countries, James Ross found two craters, the Erebus and Terror, in full activity, on the 167th meridian, latitude 77@ 32'. The vegetation of this desolate continent seemed to me much restricted. Some lichens lay upon the black rocks; some microscopic plants, rudimentary diatomas, a kind of cells placed between two quartz shells; long purple and scarlet weed, supported on little swimming bladders, which the breaking of the waves brought to the shore. These constituted the meagre flora of this region. The shore was strewn with molluscs, little mussels, and limpets. I also saw myriads of northern clios, one-and-a-quarter inches long, of which a whale would swallow a whole world at a mouthful; and some perfect sea-butterflies, animating the waters on the skirts of the shore.