An ^olian Deposit at Clevedon. 375 



the lane, for, in the large quarry beyond, it does not seem to have 

 existed. 



The cave is really about 45 yards north-east of Fig. 3, but is brought 

 artificially into that plane in order to show its relations. Its floor 

 is at about 60 feet O.D., and as no rock is to be seen outside, its 

 door would appear to have been some way up the old steep feature. 

 Its domed roof rises a little above its entrance-arch, and the interior 

 is about 8 feet high and 18 feet wide, penetrating the hill to about 

 10 feet. It was filled with the lower breccia to within about 1 ft. 6 in. 

 of the roof, and on the floor, below the breccia, were 8-12 inches of 

 a dull red stony loam, described as " cave-earth ". Although it 

 has deteriorated, the great western section may improve again, 

 and should be examined from time to time, as the drifts will doubt- 

 less, by degrees, be worked away altogether. 



Fig. 4. — Profile of the Vale of Goi-dano between Holly Lane and Conygar. 

 Scale : 9 inches = 1 mile. 



Conygar (Fig. 1). — On the quarry-brows, up to about 180 feet O.D., 

 there is a local breccia of Coal Measure sandstone, with a sandy 

 matrix, above which are 3-4 feet of ruddy, loamy sand. That this is 

 not a mere weathering-product of the sandstone has been shown on 

 p. 368. The sand and breccia can also be seen along the steep quarry 

 cart-road, but the thickness (from rock-outcrops in the woods) 

 does not appear to be great. Stony sand is proved in the gentle 

 slopes below the high road in two shallow sections, and by many 

 molehills, as far as the railway. 



East Clevedon Quarry. — This is on the western side of the great 

 gap (Figs. 1, 2), not far up the lane which leads into the woods. 

 A Pleistocene crag of crinoidal Z limestones has been revealed, resting 

 against which is a mass of angular local breccia, with 4 to 5 in. blocks 

 in a matrix of ruddy loamy sand. This drift is about 50 feet deep, 

 and climbs up to about 120 feet O.D., the features plainly indicating 

 that the breccia sweeps down the slopes to join the stony sand of the 

 railway cutting. Though the section just reaches the outcrop of the 

 Coal Measures, only one or two blocks of their sandstone has been 

 found in this drift. 



East Clevedon Railway Cutting. — This is at about 30-40 feet O.D., 

 just where (west of the church) the gap is opening out into the Vale 

 of Gordano, and is within the outcrop of the Coal Measures. It 

 shows about 6 feet of loamy ruddy sand of typical composition and 

 quite unstratified. The blocks are all of Coal Measure sandstone, 

 save one or two of decayed Caninia limestone from the higher 

 crags. 



Gordano Vale Railway Cutting is in the middle of the valley, close 



