Quart. Journ. Geol. Soc. Yol. LXXIII, PL XIIL 



Fig. 1. — Gorge of the Taff, looking south-eastwards 

 from Garth Hill. 



Castell CGch 



& 



Castell Coch Quariy. 



Cwarre Glas. 



TOXGWYNLAIS. 

 I 



Faa^k 



Fig. 2. — Escarpment of the Main Limestone, Garth Wood ; 

 looking ivestivards. 



F, Dixey, photo. 



