Fig. 3. — Section of the Pliocene cavern at Doveholes. 



a b 



[Scale : 1 inch = 30 feet.] 



A = Cave. 



B = Limestone-blocks and clay. 



C = Swallow-hole. 



a ~ Grey limestone. 

 b = Slate-coloured clay, 



1} 



Grev limestone. 



Fig. 4. — Plan of the Pliocene cavern at Doveholes. 



[Scale : 1 inch = 30 feet.] 

 A — Cave. B = Limestone-blocks and clay. 



