Pio-. 6. — Slates underlying Ordovician shales at Carer/ Onen, Anglesey : 



Note. — The conspicuous divisional planes in the slates are cleavage, dipping 

 N.N.W. at 65°-85°. The bedding, which is much folded (see fig. 4, p. 020), 

 is not perceptible in this view. The Ordovician shales are seen at the top of 

 the cliff, clipping N.B. at 20°-30°. 



U :i 



