Akn. Natal Museum, Vol. II. 



Pl. XXXI. 



1. X 8. 



2. X 8. 



Contact of Dolerite (a) with Sandstone (c). 

 1. With fvision selvage (6). 2. Without fusion selvage. 



F. B. Hatch. 



AdUtrd A' Son, Impr. 



