14 PAPERS, ETC. 
Dolwell Cavern. 
s 
BY ANDREW CROSSE. 
— 
OLWELL Cavern is a fissure in a limestone rock, 
situated at the north-west side of the parish of Broom- 
field, in the county of Somerset. This rock has been quarried 
for several years, and is perfectly free from organic remains ; 
but occasionally cubes of sulphuret of iron are found em- 
bedded within it. There is a difference of opinion as to 
the kind of limestone of which it is composed. Some 
geologists have determined it to be mountain limestone ; 
but I know not how this can be reconciled with the entire 
absence of organic remains. I believe the mass of it is of 
the transition kind, but containing some veins of bitu- 
minous limestone. In the immediate vieinity, and to a 
certain extent within the cavern, are strata of clay slate, 
which come into contact with the lime rock which lies 
at the foot and eastern side of the grawacke of the 
Quantock Hills, upon which it rests. The length of the 
fissure, as far as it has been examined, is 127 feet ; and it 
is from three and a half feet to twenty in breadth, and 
from five, to upwards of twenty, in height. Its direction 
is from east to west, and it is entered at the eastern end. 
There are some other smaller fissures on the north side of 
