Wright and Muff — Pre-glacial Raised Beach. 299 



Still further to the west, the angular rubbly head dies out 



altogether, giving : — 



Feet. 



Boulder-clay, . . . . 15 



Sandy, pebbly loam, . . . . 6 



Ferricrete sand and gravel, . . . . 4 + 



Platform covered with shingle. 



The pebbly loam has bands of stratified silt and sand at its 

 base. The platform is seen on the foreshore about 30 yards out. 

 Just west of Ballymadder Point is the following section : — 



Feet. 

 Boulder-clay, rather stony and full of angular 



fragments, . . . . . . 7 



Angular head, . . . . . . 3-5 



Beach-gravel and sand, . . 5 

 Bock-platform. 



The beach-gravel lies in a hollow of the platform. The head 

 forms the roof of a cave, which is excavated in the platform and 

 beach-gravel. The top of the gravel is from 8-10 feet above 

 ordinary high-water mark. 



Thirty yards west of this, and continuing with slight variation 



for some distance : — 



Feet. 

 Boulder-clay, . . . . 9 



Stratified sand and gravel, with blocks, . . 3-4 



Rock-platform, 8 to 10 feet above ordinary high-water mark. 



The boulder-clay here has a good deal of angular material and 

 much Leinster Granite. 



At the top of the cliff-sections described above, the surface of 

 the ground rises inland at a gentle and uniform slope, there being 

 no feature to mark the existence of a pre-glacial rcck-cliff, which 

 must consequently be very low along this coast. This low cliff 

 (20 to 30 feet) can be seen emerging from behind the drifts a few 

 hundred yards west of Ballymadder Point. From this on, how- 

 ever, the sea has removed the platform along the more prominent 

 portions of the coast, and it is only retained in the bays, at the 

 sides of which the rock-cliff can be seen receding behind the drifts. 

 In these bays the boulder-clay, head, and pebbly loam seem to be 

 developed, the sequence of the deposits being the same as before. 



SCIENT. PROC. R.D.S., VOL. X., PART II. 2 A 



