174 Proceedings of the Royal Irhh Academy. 



'■'■ InishlacJcan, IllavMnacroagh More mid Beg, and CroaghnaTceela. — 

 These islands lie o3 the mainland south and south-west of Roundstone 

 Bay. 



" Mile Rochs and Sheds. — These isolated sea-rocks lie to the south- 

 west and south, of Croaghnakeela, and are inaccessihle except in calm 

 fine weather." 



Memoir Geolog. Survey of Ireland, Sheets 104 and 113, and adjoin- 

 ing parts of Sheets 103 and 122 (1871). The area contained within 

 the limits of Sheet 113 is, for the most part, occupied hy the Atlantic 

 Ocean and the entrance to Galway Bay. The two northern islands of 

 Aran are situated towards the western margin, and immediately to the 

 south of it, in Sheet 122, is Inisheer, the extreme south-easterly 

 island of the Aran group. Parts of the islands of Lettermullan and 

 Gorumna, with the portions of the mainland that lie east and west of 

 Cashla Bay, occur inside the northern margin. 



(p. 7.) — " The Aran Islands, at the mouth of Galway Bay, lie in a 

 north- west and south-east direction, being about 16 miles long from 

 Carrickemonmacdonagha, the north-west point of Illaun-eragh (the 

 western of the Brannock Islands), to Trawkeera Point, the eastern 

 extremity of Inisheer. They consist of three large islands — Inish- 

 more, Inishmaan, and Inisheer — with four small islands off the north- 

 west point of Inishmore, called the Brannock Islands (p. 8) ; and on 

 its east coast, at the entrance of Killeany Bay, Illaunatee or Straw 

 Island ; the last named being joined to the island by a sand-bank 

 during low water. Connected with the Aran Islands there are very 

 few detached rocks, besides these to the north-west, which are included 

 under the general name of Brannock Islands, only three occurring off 

 Inishmore, called Island-a-reefa, Craghalmon, and Carrickmonaghan ; 

 and one, a spring-tide rock, called Finnes, half a mile fi'om the shore of 

 Inisheer. 



" Sounds, — Xorth of Inishmore, between it and lar-Connaught, is 

 the North Sound, about 5^- miles wide. Between Inishmore and 

 Inishmaan is Gregory^ s Sound, from 1 to l^- miles wide, while Inish- 

 maan is separated from Inisheer by the Foul Sound, which is IJ miles 

 wide between the nearest points, and Inisheer, fi'om the barony of 

 Burren, Co. Clare, by the South Sound, about 4 miles across." 



(p. 9.) — " Mainland ; form of the ground. — The land on the north of 

 the Galway Bay is intersected by numerous chains of lakes, bays, and 

 creeks ; various harbours and bays are foimed by the islands and 

 promontories. In Sheet 113, on the west of Lettermullen, are some 



