Wright and Muff — Pre-glacial Raised Beach. 285 



and the south side of Spike Island, being overlaid either by head 

 or boulder- clay or by both. No beach-deposits were, however, 

 found. 



Fig. 2. — Index Map of Queenstown Harbour. 



Great Island. — A narrow rock-platform extends almost con- 

 tinuously along the west, south, and east shores, and is found in 

 several places on the north side of the Island. Where it passes 

 under the drifts, its surface is usually between 2 and 4 feet above 

 high-water mark of ordinary spring-tides, though it is sometimes 

 higher or lower. It is overlain by head or boulder-clay, or by 

 both deposits. Beach-gravels are {found lying on the platform 

 beneath the lower head, 500 yards east of Queenstown Lifeboat 

 House, and 200 yards east of Glenmore« The pebbles in the gravel 

 are not so well rolled as those in the gravels on the open coast. 

 In this character the pre-glacial beach-gravel agrees with the 

 modern shore-deposits. At Marino Point red boulder-clay over- 

 lies the platform, which is striated from W. 25° N. to E. 25° S. 



The Eastern Shores of Cork Harbour. — On the eastern side of 

 the East Passage the platform is narrow but well marked. Just 

 south of the ferry it is overlain by 6 feet of slaty head. From 

 here it may be traced round into Cork Harbour. 



The pre-glacial cliff, rising behind a terrace of head or 

 boulder-clay, stretches from Rostellan westwards to Corkbeg, but 



Z2 



