Order of Superposition of the Stratified Rocks of South Africa. 



European 

 Equivalents. 



RHiETIC. 



Permo- 

 Carboni- 



FEROUS... 



Devonian. 



Archaean. 



Southern 

 Cape Colony. 



Karroo 

 System. 



Stormberff 



Beaufort 



Volcanic Group. 

 Cave Sandstone. 

 Red Beds. 

 Molteno Beds. 



Ecca and Dwyka ... 



Cane f^itteberg 



oape J goi-i^gyeif^ 



system, j^rp^^^j^ Mountain Sandstone 



Malmesbury Series. 



Transvaal. 



> Hissing. 



Missing. 



= Ecca and Dwyka. 



'-.^■^^^^^/■^.^^^^ (Unconformity No. V.) 



Missing. 

 Missing. 

 = Waterberg Sandstone. 



(Unconformity No IV.) 



Pretoria Beds. 

 Dolomite Series. 

 Black Reef Series. 



(Unconformity No. III.) 



I Boulder Beds, Volcanic 

 Breccias, Kliprivers- 

 berg Amygdaloid, etc. 

 Elsburg Conglomerates. 



(Unconformity No. II.) 



Upper Witwatersrand 



Beds 

 Lower Witwatersrand 



Beds. 



(Unconformity No. I.) 

 Swaziland System. 



Potchef- 

 stroom 

 System 



Venters- 

 dorp 

 System. 



Witwaters- 

 rand 



System. 



Note. — This slip is intended to correct the Table given in Dr. F. H. Hatch's Address, Part I, 

 p. 98, in the March number, 1906, in which, by an error, the Devonian formation 

 was made to embrace with a bracket all the older Transvaal rocks. — Edit. Geol. Mag. 



