90 



Guide to Belfast. 



other marine microzoa have been found in clays at consider- 

 able altitudes above sea-level ; at 450 feet on Carnmoney 

 Hill and the Knockagh ; 800 feet at Wolfhill ; and in 

 two interesting little patches of stony clay at heights of 

 1,100 feet on the Cave Hill, and 1,300 and 1,400 on Divis 

 Mountain. It is noticeable that these two last beds appar- 

 ently contained no far-travelled erratics, basalt, chalk, and 

 flint fragments only being found in them. 



1)U rTERl.U.MC 



The close of the Glacial period leaves its records in many 

 eskers and in the local moraines of the Mourne mountains, 

 where these moraines have blocked up the ends of the 

 valleys, producing lakes, which in time may have got filled 

 up, giving us such flats as are found in the Happy Valley. 

 At the foot of many valleys of the Mournes the glacial 

 drift has been spread out as a fan talus, as in the valley 

 above the Bloody Bridge. 



Raised Beaches are common features along our coast 

 at varying heights. Occasionally the old sea-cliffs and sea- 

 stacks may be distinguished. Mr. Praeger considers that 



