Plate 51. 



1. Looking over the pnrtly submerged land rim aeross to islets in the lagoon of Anaa, 



seen from the sea. 



2. Beach rock (jn the sea face of the shingle l)each to the east of Rotoava village, Faka- 



rava, showing NuUipore knolls to the left of the reef platform. 

 1, 2, A. G. M,, Phot. 



