858 J. GEIKIE ON THE GLACIAL PHENOMENA 



the head of Bhaterseidh Bay ; in fact it forms an isthmus there 

 connecting the north and south portions of the island, which have 

 evidently at one time formed two separate islets. There is also 

 much sand along the shores of Bhaterseidh Sound. Near the point 

 on the north shore of Bhaterseidh Bay till is seen capping the 

 gneiss and hugging the low shore. A low cliff on the southern 

 shore of the bay seemed also to he composed of till ; hut we did not 

 get near enough to be sure of this. The dip of the gneiss in the 

 north-east of the island is south-east and east. 



2. Maolclomhnuich (Maoldonuich). — This islet consists of a single 

 hill, rising 500 feet above the sea. The dip of the gneiss is easterly, 

 the lines of the bedding being marked out by grooves in which 

 the grass grows comparatively thick and close. Two deeper and 

 broader grooves or hollows run across the strike, and are in the 

 same -way marked out by vivid green, which contrasts strongly with 

 the bare grey rock on either side. The hill is moutonnee all over. 



3. Saundreidh (Saundrey). — The dip and strike of the gneiss are 

 very conspicuous in this island, the dip being to north-east at angles 

 varying from 20° to 60°. The gneiss is much jointed. Dykes of 

 basalt are conspicuous in the sea-cliffs of the south-east. A sandy 

 beach extends between Sgeir Leacnis and Eilean-mor. The sand is 

 blown well up on the island, and gives rise, as usual, to a bright 

 green grassy covering. The highest point of the island is 660 feet 

 above the sea. No drift and very few erratics could be seen ; but 

 the whole island was well glaciated, and distinctly smoothed off 

 from the south-east. The higher parts of the island are sparsely 

 clothed with grass, which grows chiefly in the joints and hollows of 

 the gneiss, and marks out long flutings or hollows that traverse the 

 island from shore to shore along the line of strike. The most con- 

 spicuous of these hollows is traversed by two little brooks, flowing 

 in opposite directions, one to north-west and the other to south-east. 



4. Flodeidh (Plodey) is a low-lying flat islet, with grassy top. 



5. Lingeidh (Lingey) has a rounded top, and presents steep cliffs 

 to the south-west. The dip of the gneiss is towards north-east. 

 The upper part of the cliff appeared bevelled off in a characteristic 

 glacial manner. No drift and no erratics were visible. 



6. Grianamal is a mere rock, in which the same dip as in 

 Lingeidh occurs. No drift and no erratics were seen. 



7. Papeidh (Papey). — The gneiss in this island dips north-east at 

 angles ranging from 15° to 30°. The cliffs at the south-western 

 extremity are smoothed off or bevelled along the summit by glacial 

 action. The hill occupying the south-westerly end of the island is 

 very bare, and finely moutonnee from south-east to north-west. A 

 bay in the south-east shows a sandy beach, and the sand blown into 

 the island affords soil which covers the barren rock and nourishes 

 the usual bright green grass. The rest of the island is bare and 

 paved with ice-smoothed rock-faces, in the interstices of which 

 appears a scanty vegetation. The peninsula of Rudh Eoisnis is 

 absolutely naked : no soil, no drift, and no erratics were visible. 

 Papeidh is 550 feet high. 



