OP THE OUTER HEBRIDES. 



825 



Fig. 3. — Cliff -section : Sea-coast at mouth ofAmhuinn Dhail. 



a. Angular debris of underlying gneiss, mixed with clay. 



b. Dark-brown and blue clay, laminated, with fragments of shells and sporadic 



stones, smoothed and angular. 



c. Gravel and sand, false-bedded. 



Depth of section about 45 feet. 



Tig. 4. — Cliff-section at Port of Ness, 



a. Lower Boulder-clay, with sandy patches ; red sandstone and conglomerate 



boulders more common here than in other places. 



b. Coarse shingle, gravel, and sand, containing here and there brick-clay, silt, 



&c. ; rolled fragments of shells somewhat plentiful ; very irregularly stra- 

 tified beds. 

 d. Upper Boulder-clay, brown, sandy, unstratified, with a few fragments of 

 shells. 



Depth of section about 50 or 60 feet. 



Fig. 5. — Cliff-section at Port of Ness, east of section fig. 4. 



a. Lower Boulder-clay. 



b. Coarse shingly sand and gravel, with rolled shell-fragments. 

 d. Upper Boulder-clay, sandy. 



Depth of section about 50 or 60 feet. 



In fig. 2 all the beds are shown. Fine sections, exhibiting the 

 two Boulder-clays, with the Interglacial beds, are well seen in the 

 cliffs at Traigh Chrois ; some of these show the Upper Boulder- clay 

 cutting down, as it were, into the stratified beds ; while others, in 

 like manner, indicate how the Lower Boulder-clay has been worn 

 and denuded before the deposition of the Interglacial sands and clays. 

 These and other appearances, however, are represented in several 

 sketch sections which have already been published*, and need not 

 be further described here. 



* Op. cit. p. 169. 



