s me that it is a dense
vapor formed by the calorification of ascending moisture dephlogisticated
by refraction. A few endiometrical experiments would confirm this, but
it is not necessary. The thing is obvious."

So he shut up his glass and went into his shell to make a note of the
discovery of the world's end, and the nature of it.

"Profound mind!" said Professor Angle-Worm to Professor Field-Mouse;
"profound mind! nothing can long remain a mystery to that august brain."

Night drew on apace, the sentinel crickets were posted, the Glow-Worm and
Fire-Fly lamps were lighted, and the camp sank to silence and sleep.
After breakfast in the morning, the expedition moved on. About noon a
great avenue was reached, which had in it two endless parallel bars of
some kind of hard black substance, raised the height of the tallest Bull
Frog, above the general level. The scientists climbed up on these and
examined and tested them in various ways. They walked along them for a
great distance, but found no end and no break in them. They could arrive
at no decision. There was nothing in the records of science that
mentioned anything of this kind. But at last the bald and venerable
geographer, Professor Mud Turtle, a person who, born poor, and of a
drudging low family, had, by his own native force raised himself to the
headship of the geographers of his generation, said:

"'My friends, we have indeed made a discovery here. We have found in a
palpable, compact, and imperishable state what the wisest of our fathers
always regarded as a mere thing of the imagination. Humble yourselves,
my friends, for we stand in a majestic presence. These are parallels of
latitude!"

Every heart and every head was bowed, so awful, so sublime was the
magnitude of the discovery. Many shed tears.

The camp was pitched and the rest of the day given up to writing
voluminous accounts of the marvel, and correcting astronomical tables to
fit it. Toward midnight a demoniacal shriek was heard, then a clattering
and rumbling noise, and the next instant a vast terrific eye shot by,
with a long tail attached, and disappeared in the gloom, still uttering
triumphant shrieks.

The poor damp laborers were stricken to the heart with fright, and
stampeded for the high grass in a body. But not the scientists. They
had no superstitions. They calmly proceeded to exchange theories.
The ancient geographer's opinion was asked. He went into his shell and
d