NORTH NILANDU. 109 



The depth in the passes between the faros on both sides of North 

 Nilandu clearly indicate here and there the greater elevation of parts of 

 the outer rim of the plateau than the central basin. 



On the flat of the northeast face of Farna (PI. 59) flanking the pass sepa- 

 rating it from the faro to the north, a large coral boulder has been thrown 

 up ; the flat of the southeast horn is covered by similar but smaller boulders. 



On the faro to the south of Farna (PI. 78, fig. 1) a well-wooded islet 

 occupies the western spit of the rim ; the eastern face is edged by patches 

 of coral boulders. On the eastern edge of Hekara, the next fai'o (PL 60, 

 fig. 1), the coral boulders are thrown up in larger bodies, and on the eastern 

 edge of the faro flat to the south of Hekara runs a long line of angular coral 

 boulders, pitted, honeycombed, and undercut. The eastern edges of the 

 faros of North Nilandu are all covered with large patches of corals extending 

 well westward on the rims towards the enclosed lagoons. The edge of the 

 southern face of the pass south of Hekara is also flanked by a line of rounded 

 large coral boulders, mainly masses of Porites, pitted, honeycombed, and 

 many of them undercut as well as on the sea face spit of Feartu. The sea 

 face of the bushy islet occupying the northern extremity of this faro is 

 flanked by a coarse shingle beach, as is also the beach on the east spit of 

 Feartu (PI. 61, fig. 1). 



The greater part of the east face of Mawafuri (PI. 61, fig. 2) is edged 

 by a belt of angular masses of coral boulders, deeply pitted and honey- 

 combed and undercut, separated by stretches of shingle or smaller rounded 

 boulders, a similar belt of smaller boulders and coarse shingle edges the 

 southern horn of the faro flanking the pass to the south of Mawafuri. The 

 same belt of coral boulders and coarse shingle extends for nearly four miles 

 on the sea face. These lines of coral boulders thrown up on the rim flats 

 of the eastern face of North Nilandu indicate the luxuriant growth of corals 

 on the sea face of the faros. These lines of coral boulders are pitted and 

 honeycombed, forming little spires and pinnacles, they remind one only on a 

 small scale of the edges of the great reef flats of Australia with their belt of 

 horse heads. The horn forming the south face of Adago is flanked by a 

 similar belt of small horse heads pitted, honeycombed, and deeply undercut, 

 as is the eastern face of Majjudu. 



