Plate 70. 



1. West face of Murokau, looking across the wide reef flat into the lagoon. 



2. Northern oxti-einity of Ravahere, looking across the wide bare reef flat of the west face, 



showing the islands on the east face of the atoll. 



3. Horn of the western extremity of Nnkutavake, showing reef flat platform lagoon at 



the base of a liigh shingle and coral sand beach, seen from the sea. 



4. Sand dunes on the east face of Nnkutavake, overwhelming the vegetation of the land 



rim, line of Nullipore knolls on (juter edge of reef flat platform, seen from the sea. 

 14, A. G. M., Phot. 



