The things we do!

"
"Professor," said Captain Nemo, "my electricity is not everybody's.
You know what sea-water is composed of. In a thousand grammes
are found 96 1/2 per cent. of water, and about 2 2/3 per cent.
of chloride of sodium; then, in a smaller quantity, chlorides of
magnesium and of potassium, bromide of magnesium, sulphate of magnesia,
sulphate and carbonate of lime. You see, then, that chloride
of sodium forms a large part of it. So it is this sodium that I
extract from the sea-water, and of which I compose my ingredients.
I owe all to the ocean; it produces electricity, and electricity
gives heat, light, motion, and, in a word, life to the Nautilus."
"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.


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