"But not the air you breathe?"
"Oh! I could manufacture the air necessary for my consumption, but it is useless, because I go up to the surface of the water when I please. However, if electricity does not furnish me with air to breathe, it works at least the powerful pumps that are stored in spacious reservoirs, and which enable me to prolong at need, and as long as I will, my stay in the depths of the sea. It gives a uniform and unintermittent light, which the sun does not. Now look at this clock; it is electrical, and goes with a regularity that defies the best chronometers. I have divided it into twenty-four hours, like the Italian clocks, because for me there is neither night nor day, sun nor moon, but only that factitious light that I take with me to the bottom of the sea. Look! just now, it is ten o'clock in the morning."
"Another application of electricity. This dial hanging in front of us indicates the speed of the Nautilus. An electric thread puts it in communication with the screw, and the needle indicates the real speed. Look! now we are spinning along with a uniform speed of fifteen miles an hour."
"It is marvelous! And I see, Captain, you were right to make use of this agent that takes the place of wind, water, and steam..."
Really, I knew already the anterior part of this submarine boat, of which this is the exact division, starting from the ship's head: the dining-room, five yards long, separated from the library by a water-tight partition; the library, five yards long; the large drawing-room, ten yards long, separated from the Captain's room by a second water-tight partition; the said room, five yards in length; mine, two and a half yards; and, lastly a reservoir of air, seven and a half yards, that extended to the bows. Total length thirty five yards, or one hundred and five feet. The partitions had doors that were shut hermetically by means of india-rubber instruments, and they ensured the safety of the Nautilus in case of a leak.