[ 26l ] 
Explanation of Plate VIII. 
Fig. I. 
A Section of the Great Shaft, and Firfl Cave,. 
N S, The mouth of the Chafm lengthways from- 
North to South. 
S The South end, at which I was let down. 
A The firft great cragg, where the paffage 
grows narrow. Oppofite to it is a large 
projedion of the rock, which may be 
juft feen from the top : and under that, 
is, 
F‘ The entrance of a cavern, which feemed 
to go a great way 3 but I could not get 
into it. 
C A large projedlion of the rock . at the bottomr 
of the fhaft. As foon as I had pafted 
this, I fwung ; being come into the firft. 
Cave. 
D E The heap of ftones, with which the whole- 
bottom of the firft cave is filled. 
The arched pafiage into the great vault, 
being about three yards high. 
B* 
