Plate 34. 



NIAU. 



1. Outcrop of old ledge iu the central part of the land rim of the island. 



'2. Outcrops of old ledge on the reef flat platform of the west face of the island. 



.3. Low undercut elevated coralliferous limestone lilnffs on the south shore of the island. 



1-3, W. McM. W., rimt. 



