Plate 74. 



1 . The Mount Duff massif with the central ridge of Manga Reva, looking across the encircling 



reef as seen facing the eastern part of Au Kena : on tlie left, Makaroa in the clistanoeT 



2. Tlio islands of Aka-Maru on the left, Mekiro in the centre, and Au Kena on the right, 



as seen from the east through a gap between the southern end of Tarauru-roa and an 

 islet to the south. 



