Wright and Muff — Pre-glacial Raised Beach. 293 



The marly boulder-clay is a reddish-brown clay, with shell- 

 fragments and a few stones. 



The head has a sandy matrix, and is composed of red and 

 green angular fragments of rock, with some broken vein-quartz. 

 The rock-platform is 6 to 7 feet above ordinary high-water mark. 



In the middle of Ballycottin Bay, the cliffs consist of brownish 

 marly clay with shell-fragments and erratics, and of fine yellow 

 sands which overlie the marl. (See lists, pp. 266 and 268.) 



Knockadoon Mead. — On the north side of Knockadoon Head 

 there are good sections of the drifts resting on the rock-platform. 

 The pre-glacial beach-gravel is sometimes 6 feet thick, and several 

 erratic pebbles were picked out of it here. It is overlain by lower 

 head, which is sometimes succeeded by red boulder-clay and upper 

 head. 



North of the Coastguard Station, reddish boulder-clay, 18 feet 

 thick, rests on the rock-platform, which is striated from N. 37° W. 

 to S. 37° E. The boulder-clay contains a number of pebbles of 

 Old Eed Sandstone and Carboniferous rocks, and also one or two 

 flints and shell-fragments. 



Youghal. — South of Youghal Eailway Station, the cliffs consist 

 of marly boulder-clay, with fine bedded sands, overlain by gravels 

 composed %i Old Eed and Carboniferous rocks. The rock-platform 

 is seen on both sides of the estuary at Youghal. Marly boulder- 

 clay, apparently overlain by a reddish stony boulder-clay, occurs 

 at the Youghal Brick Works, north of the town, but the former 

 does not appear to extend north of Youghal Bridge. In a small 

 quarry, east of Ardsallagh House, and a little over half a mile 

 north-north-east of Youghal Bridge, the local stony boulder-clay 

 rests on rock, which is striated from N. 50° W. to S. 50° E. 



Whiting Bay. — At the western end of Whiting Bay the cliffs 

 consist of head, which is composed of angular red sandstone frag- 

 ments and vein-quartz, with a reddish loamy matrix. It is often 

 over 40 feet thick, and rests on the rock-platform, which has an 

 uneven water-worn surface. In the hollows of the platform, and 

 under the head, there is a thickness of from 2 to 3 feet of fine 

 and coarse bedded gravel, which sometimes has a loamy matrix, 

 derived from the washing down of the fine material of the head. 

 At one place a little blown sand was seen below the head. A 

 short distance west of the road down to the shore, marly boulder- 



