The "cellar" was tolerably well lighted up.

For a mile and a half in front of us and half a mile on either side, the floor of the abyss was magnificently illuminated; beyond these limits the mists hung down their gauzy curtains and cast a deceptive gloom over all that made the twinkling fires in the remote corners of the crater seem countless leagues removed--made them seem like the camp-fires of a great army far away.

Here was room for the imagination to work! You could imagine those lights the width of a continent away--and that hidden under the intervening darkness were hills, and winding rivers, and weary wastes of plain and desert--and even then the tremendous vista stretched on, and on, and on!--to the fires and far beyond! You could not compass it--it was the idea of eternity made tangible--and the longest end of it made visible to the naked eye! The greater part of the vast floor of the desert under us was as black as ink, and apparently smooth and level; but over a mile square of it was ringed and streaked and striped with a thousand branching streams of liquid and gorgeously brilliant fire! It looked like a colossal railroad map of the State of Massachusetts done in chain lightning on a midnight sky.

Imagine it--imagine a coal-black sky shivered into a tangled net-work of angry fire! Here and there were gleaming holes a hundred feet in diameter, broken in the dark crust, and in them the melted lava--the color a dazzling white just tinged with yellow--was boiling and surging furiously; and from these holes branched numberless bright torrents in many directions, like the spokes of a wheel, and kept a tolerably straight course for a while and then swept round in huge rainbow curves, or made a long succession of sharp worm-fence angles, which looked precisely like the fiercest jagged lightning.

These streams met other streams, and they mingled with and crossed and recrossed each other in every conceivable direction, like skate tracks on a popular skating ground.