as it was,
ought to experience no change of temperature. I looked at the
manometer; it showed a depth of sixty feet, to which atmospheric heat
could never attain.

I continued my work, but the temperature rose to such a pitch as to be
intolerable.

"Could there be fire on board?" I asked myself.

I was leaving the saloon, when Captain Nemo entered; he approached the
thermometer, consulted it, and, turning to me, said:

"Forty-two degrees."

"I have noticed it, Captain," I replied; "and if it gets much hotter we
cannot bear it."

"Oh, sir, it will not get better if we do not wish it."

"You can reduce it as you please, then?"

"No; but I can go farther from the stove which produces it."

"It is outward, then!"

"Certainly; we are floating in a current of boiling water."

"Is it possible!" I exclaimed.

"Look."

The panels opened, and I saw the sea entirely white all round. A
sulphurous smoke was curling amid the waves, which boiled like water in
a copper. I placed my hand on one of the panes of glass, but the heat
was so great that I quickly took it off again.

"Where are we?" I asked.

"Near the Island of Santorin, sir," replied the Captain. "I wished to
give you a sight of the curious spectacle of a submarine eruption."

"I thought," said I, "that the formation of these new islands was
ended."

"Nothing is ever ended in the volcanic parts of the sea," replied
Captain Nemo; "and the globe is always being worked by subterranean
fires. Already, in the nineteenth year of our era, according to
Cassiodorus and Pliny, a new island, Theia (the divine), appeared in
the very place where these islets have recently been formed. Then they
sank under the waves, to rise again in the year 69, when they again
subsided. Since that time to our days the Plutonian work has been
suspended. But on the 3rd of February, 1866, a new island, which they
named George Island, emerged from the midst of the sulphurous vapour
near Nea Kamenni, and settled again the 6th of the same month. Seven
days after, the 13th of February, the Island of Aphroessa appeared,
leaving between Nea Kamenni and itself a canal ten yards broad. I was
in these seas when the phenomenon occurred, and I was able therefore to
observe all the different phases. The Island of Aphroessa, of round
form, measured 300 feet in diameter, and 30 feet in height. It was
composed of black and vitreous lava, mixed with fragments of felspar.
And lastly,