294 Scientific Proceedings, Royal Dublin Society. 



clay overlies the head, which gradually thins out eastwards until 



the marl comes to rest on the beach-gravel. Finally, the base of 



the marl passes below the level of the modern beach-shingle. 



Near the eastern end of the Bay, the following section is seen 



in the cliffs: — 



Feet. 

 Stony boulder-clay, . . . . 15 



Marly boulder-clay, . . . . 20 



The stony boulder-clay is slightly reddish in colour, and con- 

 tains sub-angular boulders of yellow grit, red sandstone, and vein- 

 quartz. Its junction-line with the marl is an uneven one, and the 

 upper clay was probably deposited by the inland ice coming from 

 the north. The marly boulder-clay is of the usual type, and a 

 list of the erratics found in it is given on p. 268. 



Ardmore. — Just east of Ardmore village, the rock-platform was 

 seen overlain by head. 



Dungarvan. — On the southern side of Dungarvan Harbour, the 

 raised-beach platform can be seen emerging from beneath thick 

 drift deposits, consisting largely of marl and sand. The cliffs are 

 much overgrown and obscured by slipping, and are, in consequence, 

 difficult to decipher. When visited, the following sections were 

 fairly clear : — 



(1). Two hundred and fifty yards west of Ringville Stream. 



Feet. 



Gravel, . . . . . . 8 



Marly boulder-clay, . . . . 4 



Head, .. .. .. ..12 



Rock-platform. 



(2). Three hundred yards further west. 



Feet. 

 Reddish boulder-clay, with much Old Red Sand- 

 stone, . . . . . . . . 10-15 



Fine silt, with a few stones towards top, . . 3-4 

 Fine loamy sand, . . . . . . 5-10 



Bluish marly boulder-clay, . . . . 10 



Head, .. .. .. .. 12-15 + 



Rock-platform probably near. 

 The reddish boulder-clay at the top of the latter section has a 

 rather clayey matrix, and contains much Old Red Sandstone. A 

 pebble of porphyry was also found in it, and a flint was obtained 



