"Let us empty our tank of water," said the doctor,
"and keep only enough for one day."
"There it goes," shouted Joe.
"Does the balloon rise at all?" asked Kennedy.
"A little--some fifty feet," replied the doctor, who
kept his eyes fixed on the barometer. "But that is not
enough."
In truth the lofty peaks were starting up so swiftly before
the travellers that they seemed to be rushing down upon them.
The balloon was far from rising above them. She lacked an
elevation of more than five hundred feet more.
The stock of water for the cylinder was also thrown
overboard and only a few pints were retained, but still all
this was not enough.
"We must pass them though!" urged the doctor.
"Let us throw out the tanks--we have emptied them."
said Kennedy.
"Over with them!"
"There they go!" panted Joe. "But it's hard to see
ourselves dropping off this way by piecemeal."
"Now, for your part, Joe, make no attempt to sacrifice
yourself as you did the other day! Whatever happens,
swear to me that you will not leave us!"
"Have no fears, my master, we shall not be separated."
The Victoria had ascended some hundred and twenty
feet, but the crest of the mountain still towered above it.
It was an almost perpendicular ridge that ended in a regular
wall rising abruptly in a straight line.
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