PLATE li. 



iM 



Fig. 1. 



Raritan clay bank showing white sand on the right passing into a black clay 

 on the left. S. Graham & Co., Kinkora. 











--•■, 



Fig. 2. 



Crusts of iron oxide cutting through the clay. They produce the 

 appearance on the surface. Haines & Son, Yorktown. 



idged 



