shows a vertical section is seen by the visitor is a sort of window 90 feet above the | ‘Covered Pit,” a treacherous chasm, imperfectly covered by of an excavation made by the action of water on limestone loose slabs of limestone, between which the black depths floor of the dome. The latter can be… … Nuance of a suggestion from Mr. Klett, the manager of the and D, and looking aloft to the vaulted roof, he will, with | cave, we named ‘“‘ Charybdis.” The dividing ridge at this Fig. 1.—VERTICAL SECTION. equal fitness, call them domes. But let him enter at E, the ‘point was only about six feet…
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