QuartJoumCeolSocVolXLVIIl.Pl.Vl. 



LLUSTRATING THE Sequence OF THE 



"Rocks of Caernarvonshire 



urictn. 

 it' Cambrian^. 

 ' D^ Q)njglom£rate^ 

 "ple Slates. 

 Arms Grit. 

 mwe^Grii/ 



Banded Slates. 

 Bangor Conglomerate^. 



ra 



Bangor Breccia. 



LamzTzated Grits. 



TairffyTmoTv and BrUhdir Conglomerate^. 



t^J^Felsite^. 



Fig. 2, 



