Mr. Cumberland on the Strata near Bristol . 101 
This extensive and elevated quarry seems to have been abandoned 
on account of the faults in its beds, and its being underlaid in a 
contrary direction to its dip, by the vast and compact bed of lime- 
stone that slopes from it in an angle of about 15 degrees towards 
the river, and unequally towards the south-west. A mass I believe 
without joints and impenetrable. It has shells, and is in part 
oolitic, and of a lighter tint than the great beds resting on it, some 
of which are also oolitic, and decomposing in parts. I traced the 
circle of this quarry and found all within reach good grey lime- 
stone, with a few anomia only. This point at the lime kiln, like 
the last described, exhibits a fragment of another bed of some mag- 
nitude, and irregular in its construction ; in fact it is the under- 
pinning of the whole mass, and seems to belong to the front of 
another series whose other beds have sunk out of sight, for from 
this spot to a bank beyond the capstern placed to assist in warping 
the shipping coming into port, (being 52 paces,) we find only a 
gap filled with rubble from the scar, and very red marie, forming a 
narrow valley, in which are cold springs that often flow profusely 
into and weaken the bank of the river that here is divested of its 
rocky boundary. 
The curve this working has made from the river towing-path is 
very considerable, and above it overhangs the hole, called St. Vin- 
cent’s cave, which once was accessible, but has been lately rendered 
inaccessible by blowing away the narrow shelf that led to its en- 
trance. 
We are still at the termination of the fourth inclining mass of rocks, 
each highest at the northern end, forming deeply serrated edges to- 
wards the north side of the river Avon, and whose summits form 
an inclining plain, bearing to the south of south-east, on which part 
the noble village of Clifton is built ; and here we may be allowed 
