"An iceberg!" said the Canadian to me.

I knew that to Ned Land, as well as to all other navigators who had preceded us, this was an inevitable obstacle. The sun appearing for an instant at noon, Captain Nemo took an observation as near as possible, which gave our situation at 51 30' longitude and 67 39' of south latitude. We had advanced one degree more in this antarctic region. Of the liquid surface of the sea there was no longer a glimpse. Under the spur of the Nautilus lay stretched a vast plain, entangled with confused blocks. Here and there sharp points, and slender needles rising to a height of 200 feet; further on a steep shore, hewn as it were with an axe, and clothed with grayish tints; huge mirrors, reflecting a few rays of sunshine, half drowned in the fog. And over this desolate face of nature a stern silence reigned, scarcely broken by the flapping of the wings of petrels and puffins. Everything was frozen-even the noise. The Nautilus was then obliged to stop in its adventurous course amid these fields of ice. In spite of our efforts, in spite of the powerful means employed to break up the ice, the Nautilus remained immovable. Generally, when we can proceed no further, we have return still open to us; but here return was as impossible as advance, for every pass had closed behind us; and for the few moments when we were stationary, we were likely to be entirely blocked, which did, indeed, happen about two o'clock in the afternoon, the fresh ice forming around its sides with astonishing rapidity. I was obliged to admit that Captain Nemo was more than imprudent. I was on the platform at that moment. The captain had been observing our situation for some time past, when he said to me:

"Well, sir, what do you think of this?"

"I think that we are caught, captain."

"So, M. Aronnax, you really think that the Nautilus cannot disengage itself?"

"With difficulty, captain; for the season is already too far advanced for you to reckon on the breaking up of the ice."

"Ah! sir," said Captain Nemo, in an ironical tone, "you will always be the same. You see nothing but difficulties and obstacles. I affirm that not only can the Nautilus disengage itself, but also that it can go further still."

"Further to the south?" I asked, looking at the captain.

"Yes, sir; it shall go to the pole."

"To the pole!" I exclaimed, unable to repress a gesture of incredulity.

"Yes," replied the captain coldly, "to the antarctic pole, to that unknown point from whence springs every meridian of the globe. You know whether I can do as I please with the Nautilus!"

Yes, I knew that. I knew that this man was bold, even to rashness. But to conquer those obstacles which bristled round the South Pole, rendering it more inaccessible than the north, which had not yet been reached by the boldest navigators-was it not a mad enterprise, one which only a maniac would have conceived? It then came into my head to ask Captain Nemo if he had ever discovered that pole which had never yet been trodden by a human creature.

"No, sir," he replied; "but we will discover it together. Where others have failed, I will not fail. I have never yet led my Nautilus so far into southern seas; but I repeat, it shall go further yet."

"I can well believe you, captain," said I, in a slightly ironical tone. "I believe you! Let us go ahead! There are no obstacles for us! Let us smash this iceberg! Let us blow it up; and if it resists, let us give the Nautilus wings to fly over it!"

"Over it, sir!" said Captain Nemo quietly. "No, not over it, but under it!"

"Under it!" I exclaimed, a sudden idea of the captain's projects flashing upon my mind. I understood the wonderful qualities of the Nautilus were going to serve us in this super-human enterprise.

"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 shock?"

"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 and the 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 favor!"

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 was pure enough, the cold very great, being twelve degrees 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 maneuver was accomplished with wonderful precision.