Plate 77. 



The eastern extremity of Manga Reva Island, seen across a part of the northern horn of 

 the eastern encircling reef. In the distance are seen the islets of the northern horn of 

 the barrier reef. 



Looking westward across the narrow eastern encircling reef line, opposite the eastern 

 face of Manga Reva Island, with Mount Duff and Mount Mokoto in the distance. 



