WiUGiiT — Minor Periodicity in Ghmal Rclrcnl. 105 



In the Kenmaic Valley tlicrc arc certainly no moraines in llie pass north- 

 east of Morley's Bridge, or on the neighbouring upland ; but the conditions 

 arc very different from those in the open Kenniare Valley. 



In view, however, of the fact that there still remains a possibility that 

 the limits of the periodic moraine building may be due to climatic variation, 

 and that the doubts which obscure the matter might be cleared away by the 

 investigation of adjoining areas, it should be kept in mind that on this 

 assumption an epoch of 250 to 300 years of moraine Ijuilding punctuated by 

 a thirty-year periodicity appears to have alternated with other epochs in 

 which the retreat was more regular, and perhaps more rapid. The evidence 

 in the Kenmare and Killarney mountains may be regarded as clearly 

 establishing the minor periodicity of about thirty years ; but the major 

 periods of 250 to 300 years are only vaguely suggested. 



R.I. A. PROC, VOL. XXXV, SECT. B, [(J] 



