a!" exclaimed Phil Evans. And as the exclamation
escaped him, Uncle Prudent was doing all could do to admire nothing
of these wonders.

A minute afterwards the "Albatross" had crossed the river which
separates the United States from Canada, and was flying over the vast
territories of the West.

Chapter IX

ACROSS THE PRAIRIE

In one, of the cabins of the after-house Uncle Prudent and Phil Evans
had found two excellent berths, with clean linen, change of clothes,
and traveling-cloaks and rugs. No Atlantic liner could have offered
them more comfort. If they did not sleep soundly it was that they did
not wish to do so, or rather that their very real anxiety prevented
them. In what adventure had they embarked? To what series of
experiments had they been invited? How would the business end? And
above all, what was Robur going to do with them?

Frycollin, the valet, was quartered forward in a cabin adjoining that
of the cook. The neighborhood did not displease him; he liked to rub
shoulders with the great in this world. But if he finally went to
sleep it was to dream of fall after fall, of projections through
space, which made his sleep a horrible nightmare.

However, nothing could be quieter than this journey through the
atmosphere, whose currents had grown weaker with the evening. Beyond
the rustling of the blades of the screws there was not a sound,
except now and then the whistle from some terrestrial locomotive, or
the calling of some animal. Strange instinct! These terrestrial
beings felt the aeronef glide over them, and uttered cries of terror
as it passed. On the morrow, the 14th of June, at five o'clock, Uncle
Prudent and Phil Evans were walking on the deck of the "Albatross."

Nothing had changed since the evening; there was a lookout forward,
and the helmsman was in his glass cage. Why was there a look-out? Was
there any chance of collision with another such machine? Certainly
not. Robur had not yet found imitators. The chance of encountering an
aerostat gliding through the air was too remote to be regarded. In
any case it would be all the worse for the aerostat--the earthen pot
and the iron pot. The "Albatross" had nothing to fear from the
collision.

But what could happen? The aeronef might find herself like a ship on
a lee shore if a mountain that could not be outflanked or passed
barred the way. These are the reefs of the air, and they have to be
avoided as a ship avoids the reefs of the sea.