132 BULLETIN: MUSEUM OF COMPARATIVE ZOOLOGY. 
points along the north side of the harbor of Suva (Plate 7), the islands 
of Lambeko, Vuo, and Dra-ni mbotu, which are respectively sixty to 
seventy feet in height, being parts of an elevated reef extending to 
low water mark, and now planed off. It was this elevated reef or its 
extension westward which we traced from the Singatoka River to the 
Nandi Waters (Plate 6). A short distance inland from the mouth 
of the Singatoka there is a bluff of about 250 feet in height, com- 
posed of coralliferous limestone. This bluff is the inner extension of the 
elevated patches and limestone bluffs visible on the shore of Viti Levu. 
I am informed by Dr. Corney that the islands of Viwa and Asawa i lau 
(Plate 3), to the northward of the Nandi Waters, are also remnants 
of this elevated limestone. 
But the traces of extensive elevation are not limited to the island 
of Viti Levu. I found that the islands on the rim of the atoll of Ngele 
Levu (Plate 17) consisted entirely of coralliferous limestone rock, 
elevated to a height of over sixty feet on the larger island. The 
northern sides of the smaller islands Taulalia and Tai ni mbeka, as 
well as the north shore of Ngele Levu, were on the outer edge of the 
rim of the lagoon, deep water running up to the shore line. We next 
found that at Vanua Mbalavu (Plate 19) the northern line of islands 
were parts of an elevated reef, forming vertical bluffs of coralliferous 
limestone rock which had been raised by the central volcanic mass of 
the main island to a height of 510 feet at Ngillangillah, at Avea to 600 
feet, at the Sovu Islands to 230 feet, and on the main island to a height 
of nearly 600 feet, while on the south of the main island the coralliferous 
limestone bluffs are very much lower, and those of Malatta and of Susui 
reach a height of 420 to 430 feet. Going farther west and south we find 
at Mango vertical bluffs of an elevated coralliferous limestone of over 600 
feet underlaid by volcanic rocks at the sea level. At Tuvutha the lime- 
stone bluffs are probably nearly 800 feet high. At Naiau they are more 
than 500 feet. At Lakemba (Plate 21) they reach a height of about 
250 feet on the southwest side of the island, the greater part of the rest 
of the island being of volcanic origin. On the island of Aiwa (Plate 21) 
the elevated limestone is fully 200 feet thick. In the Oneata group the 
highest point of the elevated bluffs is about 160 feet (Plate 21). South 
of the volcanic island of Mothe and enclosed within the same barrier 
on the island of Karoni (Plate 22), the reef is about 120 feet thick. 
On the three islands of the Yangasé group (Plate 22) the elevated 
limestone attains a thickness of 240, 300, and 390 feet, and on On- 
gea, the most southeasterly cluster we visited, it attains a thickness 
