exclaimed Col. Bearwarden. "The Lake Superior mines and the
reclamation of the Florida Everglades would be nothing to this."

"Any inhabitants we may find here have so much land at their
disposal that they will not need to drain swamps on account of
pressure of population for some time," put in the doctor.

"I hope we may find some four-legged inhabitants," said Ayrault,
thinking of their explosive magazine rifles. "If Jupiter is
passing through its Jurassic or Mesozoic period, there must be
any amount of some kind of game." Just then a quiver shook the
Callisto, and glancing to the right they noticed one of the
volcanoes in violent eruption. Smoke filled the air in clouds,
hot stones and then floods of lava poured from the crater, while
even the walls of the hermetically sealed Callisto could not
arrest the thunderous crashes that made the interior of the car
resound.

"Had we not better move on?" said Bearwarden, and accordingly
they went toward the woods they had first seen. Finding a firm
strip of land between the forest and an arm of the sea, they
gently grounded the Callisto, and not being altogether sure how
the atmosphere of their new abode would suit terrestrial lungs,
or what its pressure to the square inch might be, they cautiously
opened a port-hole a crack, retaining their hold upon it with its
screw. Instantly there was a rush and a whistling sound as of
escaping steam, while in a few moments their barometer stood at
thirty-six inches, whereupon they closed the opening.

"I fancy," said Dr. Cortlandt, "we had better wait now till we