Quart Journ. Geol. Soc. Vol. LXIX, PI. XLIX. 



Fig. 1. — Interbedded bands 2^>cismig into 

 1 crush-conglomerate.' 



-Tli rust 



Fig". 2. — ' Quartz-knob ' on the western slope of Mynydd Enlli. 



C. A. M. photo. 



