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Rh overhang the middle part. The only passage by which it could be entered was a cavern that passed under a rock, of which it had long been disputed whether it was the work of nature or of human industry. The outlet of the cavern was concealed by a thick wood, and the mouth which opened into the valley was closed with gates of iron, forged by the artificers of ancient days, so massy, that no man, without the help of engines, could open or shut them.

From the mountains on every side rivulets descended, that filled all the valley with verdure and fertility, and formed a lake in the middle, inhabited by fish of every species, and frequented by every fowl whom nature has taught to dip the wing in water. This lake discharged its superfluities by a stream, which entered a dark cleft of the mountain on the northern side, and fell with dreadful noise from precipice to precipice, till it was heard no more.

The sides of the mountains were covered with trees, the banks of the brooks were diversified with flowers: every blast shook spices from the rocks, and every month dropped fruits upon the ground. All animals that bite the grass, or browse the shrubs, whether wild or tame, wandered in this