"By filling the vestibule as full as possible," said Bearwarden,
"and so displacing most of its air, we shall be able to open the
outside door oftener without danger of rarefaction."

The things they had discharged flew off with considerable speed
and were soon out of sight; but it was not necessary for them to
move fast, provided they moved at all, for, the resistance being
nil, they would be sure to go beyond the range of vision,
provided enough time was allowed, even if the Callisto's speed
was not being increased by apergy, in which case articles outside
and not affected would be quickly left behind.

The earth, which at first had filled nearly half their sky, was
rapidly growing smaller. Being almost between themselves and the
sun, it looked like a crescent moon; and when it was only about
twenty times the size of the moon they calculated they must have
come nearly two hundred thousand miles. The moon was now on what
a sailor would call the starboard bow--i. e., to the right and
ahead. Being a little more than three quarters full, and only
about fifty thousand miles off, it presented a splendid sight,
brilliant as polished silver, and about twenty-five times as
large as they had ever before seen it with the unaided eye.

It was just ten hours since they had started, and at that moment
9 A. M. in New York; but, though it was night there, the Callisto
was bathed in a flood of sunlight such as never shines on earth.
The only night they would have was on the side of the Callisto
turned away from the sun, unless they passed through some shadow,
which they intended to avoid on account of the danger of
colliding with a meteor in the dark. The moon and the Callisto