Proc. R. I. Acad., Vol. XXXI., Part 7. 



Explanation. 

 <-9— Glacial Stria=. the arrow marking the direction of ice flow. // Drumlins. 



Map showing direction of ice-movements and orientation of drumlins in West Connaught, 

 including the observations of Messrs. Kinahan and Close, and of the Geological Survey. 



[Reproduced, by permission of the Controller of H.M. Stationery Office, from the Geol. 

 Survey Memoir: " The Geology of Clare Island, Co. Mayo."] 



Clare Island Survey. — Hallissy ; Geology. 



