37 
In most of the islands and the localities examined, these elevated 
ireef masses, when viewed at a distance, presented the appearance of 
"vertical walls and almost horizontal terraces, stretching often for con- 
siderable horizontal distances. The faces of these cliffs are some- 
Itimes covered with vegetation to such an extent as to present the 
sappearance of huge walls of foliage. The reefs raised only a few feet 
;above the sea level, present along the shore white perpendicular cliffs 
<of varying height, above which is an almost level tableland, very 
broken and rugged, and with a very uneven surface. Gigantic 
swallow holes and enormous caves have been carved out 
of some of the limestones, and are lined with stalagmites and 
stalactites ; the faces of the limestone cliffs are weathered into most 
rugged and sharp-edged forms, and often present features of great 
beauty. The thickness of these reef masses I had no opportunity of 
ascertaining; it is, however, improbable from their mode of occur- 
rence that their vertical thickness can be very great. 
In the majority of cases wnich came under my notice, the various 
limestone terraces were horizontal, though at Ware (Teste Island), a 
marked and significant peculiarity of the reef limestones was their arrange- 
ment in a series of gentle folds, the axes o'f which trended roughly north 
and south. In the Island of Einauro(Cette Island), two miles distantfrom 
the mouth of Losoa Doudou (Millport Harbour), the cream colored 
limestones had a dip of 50 degrees to the west-north-west. 
In a few cases only wasthebase cf the up-raised reefs seen. At Ware 
(Teste Island) it rests upon a leaden-grey, slightly calcareous breccia, con- 
taining fragments of olivine. On the Island Misima (St. Aignan) an 
interesting section in one of the largest caves showed the base resting 
upon the up-turned edges of the crystalline schists, with the interven- 
tion of a small thickness of what appears to be a partially consolidated 
volcanic ash ; in another portion of the island, the base rests directly 
upon the ancient schists. 
From Losoa Doudou (Millport Harbour), I had an opportunity of 
paying a somewhat hurried visit to the Island of Einauro — Cette 
Island, of the Admiralty Charts — distant about two miles from the 
mouth of the bay. Viewed from a distance, this island presents to the 
east an nlmost vertical cliff of some considerable height, and of a 
“ basaltic ” appearance. On examination, however, the cliffs were 
found to be composed of a dense, sonorous, cream-colored limestone 
which showed no trace of coral origin to the eye. Occasionally 
the solid limestone was seamed with calcite or aragonite. The whole 
surface of Einauro was apparently of similar limestone. Einauro may 
be regarded as an elevated coral island. 
In the isthmus dividing Tauwara (Milne Bay) from that of Pouro 
(Mullen’s Harbour), another elevated reef mass resting upon andesitic 
lavas and agglomerates was noticed. 
