THE MAMMOTH CAVE. - rel 
ately denominated Great Relief, after the ex- 
perience of bended backs and compressed sides 
-in the passage of Fat Man’s Misery, is next 
entered. This hall varies in width from forty 
to sixty feet, and in height from five to twenty 
feet. From the ceiling project immense nodules 
of ferruginous limestone. 
On the floor of Great Relief, the direction of 
_ the current of water that filled these avenues 
ean be traced. Thus, at the side next Fat 
-Man’s Misery it is strewn with gravel, near the 
center sand occurs, and still farther on mud is 
deposited,—_demonstrating the fact that it flowed 
into Echo River. 
The avenue termed Bunyan’s Way passes 
directly over Great Relief, and enters a short 
distance from Fat Man’s Misery, by which 
communication is established with Pensacola 
Avenue. 
The portion of the avenue in advance, which 
extends from Great Relief to the River Styx, is 
called River Hall. It varies in width from 
forty to sixty feet. 
‘The Bacon Chamber is situated to the right 
of River Hall. This chamber is decidedly 
curious, and the name singularly appropriate. 
Here may be seen a fine collection of limestone 
