"Is there any truth in this hypothesis?" asked Michel.
"None whatever," said Barbicane, "and the proof is,that the moon has preserved no trace of the gaseous envelope which always accompanies comets."
"But," continued Nicholl, "Before becoming the earth's satellite, could not the moon, when in her perihelion, pass so near the sun as by evaporation to get rid of all those gaseous substances?"
"It is possible, friend Nicholl, but not probable."
"Why not?"
"Because—Faith I do not know."
"Ah!" exclaimed Michel, "what hundred of volumes we might make of all that we do not know!"