But to give some figures of comparison, it has been reckoned that an object thrown from the top of the towers of Notre Dame, the height of which is only 200 feet, will arrive on the pavement at a speed of 240 miles per hour. Here the projectile must strike the earth with a speed of 115,200 miles per hour. "We are lost!" said Michel coolly. "Very well! if we die," answered Barbicane, with a sort of religious enthusiasm, "the result of our travels will be magnificently spread. It is His own secret that God will tell us! In the other life the soul will want to know nothing, either of machines or engines! It will be identified with eternal wisdom!" "In fact," interrupted Michel Ardan, "the whole of the other world may well console us for the loss of that inferior orb called the moon!" Barbicane crossed his arms on his breast, with a motion of sublime resignation, saying at the same time,— "The will of heaven be done!" CHAPTER XX. THE SOUNDINGS OF THE "SUSQUEHANNA." "Well, lieutenant, and our soundings?" "I think, sir, that the operation is nearing its completion," replied Lieutenant Bronsfield. "But who would have thought of finding such a depth so near in shore, and only 200 miles from the American coast?" "Certainly, Bronsfield, there is a great depression," said Captain Blomsberry. "In this spot there is a submarine valley worn by Humboldt's current, which skirts the coast of America as far as the Straits of Magellan." "These great depths," continued the lieutenant, "are not favourable for laying telegraphic cables. A level bottom, like that supporting the American cable between Valentia and Newfoundland, is much better." "I agree with you, Bronsfield. With your permission, lieutenant, where are we now?" "Sir, at this moment we have 3508 fathoms of line out, and the ball which draws the sounding lead has not yet touched the bottom; for if so, it would have come up of itself." "Brook's apparatus is very ingenious," said Captain Blomsberry; "it gives us very exact soundings." "Touch!" cried at this moment one of the men at the fore-wheel, who was superintending the operation. The captain and the lieutenant mounted the quarter-deck. "What depth have we?" asked the captain. "Three thousand six hundred and twenty-seven fathoms," replied the lieutenant, entering it in his note-book. "Well, Bronsfield," said the captain, "I will take down the result. Now haul in the sounding line. It will be the work of some hours. In that time the engineer can light the furnaces, and we shall be ready to start as soon as you have finished. It is ten o'clock, and with your permission, lieutenant, I will turn in." "Do so, sir; do so!" replied the lieutenant obligingly.