Geol. Mag. 1922. 



Plate VIII. 



Fig. 1. — Typical Inselberg at Ankuahi seen from the west. The axis of the fold is north-south. 



?IG. 2. — Typical Inselberg or Whaleback Formation in the bush of Central Portuguese Nyasaland. 

 It is composed of gneiss with east-west foliation. 



IT face V. 2f)G 



