Plate 76. 



NUKUTIPIPI. 



1. Lookiug into the lagoon across the wide gap on the sea face of the land lini of the 



atoll ; the reef flat platform lagoon runs parallel to the land rim ; the land rim of 

 tiie opposite face of the atoll is seen across the lagoon. 



2. Extremity of island forminii tlie land rim of the western face of the atoll ; the reef 



flat platform lagoon is very prominent. 



.3. Northern end of island forming the west face of the atoll, looking into the lagoon 

 from the sea. 



4. Western point of the atoll as seen coming from the soiitli. The reef flat platform lagoon 

 is specially well developed at Niikntipipi, as shown on Figs. 1-4 of this plate. 



1-4, A. G. M., Phot. 



