i88i. 



61 



Trans, N. V. Ac. ScL. 



phates, which contrast with the iron-stained limestone, giving rise to 

 the beautiful effects that have conferred celebrity on the opening known 

 as the Star Chamber, and the myriad rock flowers of Cleveland's. 

 Cabinet. 



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'^JjM.UCO* BTo-iieCio* 



The structure of the pits and domes was then illustrated with the aid 

 of the accompanying map, by describing a journey through the cave. 

 From the hotel, {a, figures i and 2,) the visitor walks to its mouth {b), 

 by the side of a shallow ravine, terminating in what was formerly a 

 large sink-hole. The door of this fell through, about seventy years 

 ago, producing the present mouth of the cave, and cutting off part of 

 the gallery, now known as Dixon's cave {c), which opens out near the 

 Green river, a half mile distant. A walk of 1000 yards brings him to 

 the Great Rotunda {d), about 170 feet in diameter and loo feet high. 

 It is immediately under the hotel, its roof being not more than 40 or 50 

 feet from the surface. Besides the gallery, called the Narrows {b'), by 

 which access has just been obtained, another tunnel from the further 

 side terminates in the Rotunda, to which the name of Audubon's 

 avenue {b") has been given. The large, almost hemispherical opening, 

 seems to have been cut out by the meeting of nearly opposite streams 

 of water, which found exit, probably, through the main cave (<?). At 

 some distance within Audubon's avenue, a small opening in the floor is 

 found, connecting it with the roof of the Mammoth Dome, a vast cavern 



