Jules Verne

TWENTY-THOUSAND LEAGUES UNDER THE SEA
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CHAPTER XII

CACHALOTS AND WHALES

During the nights of the 13th and 14th of March, the Nautilus returned to its southerly course. I fancied that, when on a level with Cape Horn, he would turn the helm westward, in order to beat the Pacific seas, and so complete the tour of the world. He did nothing of the kind, but continued on his way to the southern regions. Where was he going to? To the pole? It was madness! I began to think that the Captain’s temerity justified Ned Land’s fears. For some time past the Canadian had not spoken to me of his projects of flight; he was less communicative, almost silent. I could see that this lengthened imprisonment was weighing upon him, and I felt that rage was burning within him. When he met the Captain, his eyes lit up with suppressed anger; and I feared that his natural violence would lead him into some extreme. That day, the 14th of March, Conseil and he came to me in my room. I inquired the cause of their visit.

“A simple question to ask you, sir,” replied the Canadian.

“Speak, Ned.”

“How many men are there on board the Nautilus, do you think?”

“I cannot tell, my friend.”

“I should say that its working does not require a large crew.”

“Certainly, under existing conditions, ten men, at the most, ought to be enough.”

“Well, why should there be any more?”

“Why?” I replied, looking fixedly at Ned Land, whose meaning was easy to guess. “Because,” I added, “if my surmises are correct, and if I have well understood the Captain’s existence, the Nautilus is not only a vessel: it is also a place of refuge for those who, like its commander, have broken every tie upon earth.”

“Perhaps so,” said Conseil; “but, in any case, the Nautilus can only contain a certain number of men. Could not you, sir, estimate their maximum?”

“How, Conseil?”

“By calculation; given the size of the vessel, which you know, sir, and consequently the quantity of air it contains, knowing also how much each man expends at a breath, and comparing these results with the fact that the Nautilus is obliged to go to the surface every twenty-four hours.”

Conseil had not finished the sentence before I saw what he was driving at.

“I understand,” said I; “but that calculation, though simple enough, can give but a very uncertain result.”

“Never mind,” said Ned Land urgently.

“Here it is, then,” said I. “In one hour each man consumes the oxygen contained in twenty gallons of air; and in twenty-four, that contained in 480 gallons. We must, therefore find how many times 480 gallons of air the Nautilus contains.”

“Just so,” said Conseil.

“Or,” I continued, “the size of the Nautilus being 1,500 tons; and one ton holding 200 gallons, it contains 300,000 gallons of air, which, divided by 480, gives a quotient of 625. Which means to say, strictly speaking, that the air contained in the Nautilus would suffice for 625 men for twenty-four hours.”

“Six hundred and twenty-five!” repeated Ned.

“But (...)

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