152 THE MAMMOTH CAVE. 



The awful sublimity of this dome, when 

 strongly illuminated, exceeds anything ever pic- 

 tured to a mind frenzied by opium or hashish. 



The Mammoth Dome is still enlarging. 



The brief time that we were unfortunately 

 restricted to when we visited the Cave, did 

 not permit us to make a personal inspection 

 of either Pensacola Avenue or Sparks' Avenue 

 and Mammoth Dome, which we very much 

 regret, and therefore are wholly indebted to 

 Dr. Wright for the description which we have 

 just given. 



Ihere are several avenues not often fre- 

 quented by visitors, of which we need make 

 no mention whatever, — for the very good 

 reason that we have no information to offer. 



Roaring River is another portion of the Cave 

 which we did not visit, but Dr. Wright informs 

 us that the avenue which communicates with 

 Roaring River is entered at Cascade Hall, and 

 is half a mile in length. He adds, that Roar- 

 ing River resembles Echo River in size and ap- 

 pearance, but' has a louder echo. There is a 

 cascade which falls into it, from which proceeds 

 roaring sounds, and from which it has received 

 its name. 



Eyeless fish and eyeless crawfish are found in 



