THE MAMMOTH CAVE. Pat 
Avenue to Clarissa’s Dome, and is about three 
hundred yards in length. This avenue con- 
tains a number of ferruginous logs, which vary 
from five to fifteen inches in diameter. Some 
of them appear to be chopped in half; others 
have lost a portion of bark, displaying a white 
surface of petrous wood; and others again look 
as though they were in a state of partial decay. 
Anywhere else these masses of stone might be 
mistaken for petrified wood. 
Clarissa’s Dome is entered at its base. It 
resembles Gorin’s Dome, but is much smaller. 
4. Bennett's Point is directly opposite Sylvan 
Avenue, where the avenue turns at an acute 
angle to the right. The floor of the avenue at 
this point is covered with yellow sand. 
5. Bisnor’s GorcE is a low and narrow part 
of the avenue, which is passed with difficulty. 
Sparks’ Avenue is named in honor of Mr. 
C. A. Sparks, of New York. 
The Mammoth Dome is viewed from a ter- 
race about forty feet from its base. It is two 
hundred and fifty feet in height, and in appear- 
ance closely resembles Gorin’s Dome, but is more 
than five times as large. At the left extremity 
of the dome there are five large pillars cut out of 
the solid rock, called the Corinthian Columns. 
