148 THE MAMMOTH CAVE. 



bered, was by the solvent action of water 

 charged with carbonic acid. 



We are told that there are avenues which 

 communicate with the top and bottom of the 

 Dome. When Echo River rises, the floor of the 

 Dome is covered with water, in which eyeless 

 fish are sometimes found. 



Gorin's Dome bears the name of its discoverer, 

 and former proprietor of the Cave. 



Pensacola Avenue is about a mile in length, 

 from eight to sixty feet in height, and from 

 thirty to one hundred in width. It is entered 

 from Revelers' Hall. 



The following objects are worthy of exam- 

 ination : 



1. The Sea-Turtle is about thirty feet in 

 diameter. The rock of which it is composed 

 has fallen from the ceiling 



2. The Wild Hall in size and appearance 

 resembles Bandit's Hall. Bunyan's Way, which 

 communicates with Great Relief, enters Pensa- 

 cola Avenue at this point. 



3. Snowball Arched Way receives its name 

 from the fact that its ceiling is covered with 

 nodules of gypsum, like those in the Snowball 

 Room. 



4. The Great Crossing is the point at which 

 four avenues take their origin. 



