plished to-morrow, we must give up all idea of taking any. We were indeed exactly at the 20th of March. To-morrow, the 21st, would be the equinox; the sun would disappear behind the horizon for six months, and with its disappearance the long polar night would begin. Since the September equinox it had emerged from the northern horizon, rising by lengthened spirals up to the 21st of December. At this period, the summer solstice of the northern regions, it had begun to descend, and to-morrow was to shed its last rays upon them. I communicated my fears and observations to Captain Nemo.
"You are right, M. Aronnax," said he; "if to-morrow I cannot take the altitude of the sun, I shall not be able to do it for six months. But precisely because chance has led me into these seas on the 21st of March, my bearings will be easy to take, if at twelve we can see the sun."
"Why, captain?"
"Because then the orb of day describes such lengthened curves, that it is difficult to measure exactly its height above the horizon, and grave errors may be made with instruments."
"What will you do then?"
"I shall only use my chronometer," replied Captain Nemo. "If to-morrow, the 21st of March, the disk of the sun, allowing for refraction, is exactly cut by the northern horizon, it will show that I am at the south pole."
"Just so," said I. "But this statement is not mathematically correct, because the equinox does not necessarily begin at noon."
"Very likely, sir; but the error will not be a hundred yards, and we do not want more. Till to-morrow then!"
Captain Nemo returned on board. Conseil and I remained to survey the shore, observing and studying until five o'clock. Then I went to bed, not, however, without invoking, like the Indian, the favor of the radiant orb. The next day, the 21st of March, at five in the morning, I mounted the platform. I found Captain Nemo there.
"The weather is lightening a little," said he. "I have some hope. After breakfast we will go on shore, and choose a post for observation."
That point settled, I sought Ned Land. I wanted to take him with me. But the obstinate Canadian refused,
