CHAPTER XXIV.
CONTINUED.
All night long, men sat before the mouth of the kilns, feeding them with fuel.

A dull smoke--a smoke of their torments--went up from their tops.
It was curious to see the kilns under the action of the fire, gradually changing color, like boiling lobsters.

When, at last, the fires would be extinguished, the bricks being duly baked, Israel often took a peep into the low vaulted ways at the base, where the flaming fagots had crackled.
The bricks immediately lining the vaults would be all burnt to useless scrolls, black as charcoal, and twisted into shapes the most grotesque; the next tier would be a little less withered, but hardly fit for service; and gradually, as you went higher and higher along the successive layers of the kiln, you came to the midmost ones, sound, square, and perfect bricks, bringing the highest prices; from these the contents of the kiln gradually deteriorated in the opposite direction, upward.

But the topmost layers, though inferior to the best, by no means presented the distorted look of the furnace-bricks.

The furnace-bricks were haggard, with the immediate blistering of the fire--the midmost ones were ruddy with a genial and tempered glow--the summit ones were pale with the languor of too exclusive an exemption from the burden of the blaze.
These kilns were a sort of temporary temples constructed in the yard, each brick being set against its neighbor almost with the care taken by the mason.