at least half full. The passage only admits small boats to a sandy basin, be- tween which and the beach there is another reef. The north beach has rather more pemphis on it than is usual in these parts. Otherwise the vegetation is of the usual beach type, with Acacia, Scaevola, Dolo, Pandanus, etc., and large bushes of the light pubescent shrub with yellow flowers and brown, hairy catkins. On the north-west point and along the west bay the beach id of slab sand- stone with only small patches of sand. The N.W. point is dominated by pemphis which is absent along the west side. Large piles of coconut husks indicates recent copra cutting. Inside the dense fringe of beach trees is a rough flat with birds-nest ferns and the usual lowland trees. A narrow rocky point runs out 100 feet or so at the south end of the west bay and then the coast turns sharply east. The south to south-east por- tion of the ridge begins at this point, inclining upward and rising steeply from the water. Its face is covered with scrub with areas of bare rock. The highest portion of the ridge is on the east side, where a narrow knife edge rises percipitously from both sides, being separated from the main ridge by a deep chasm. The reef extends practically in to shore, with small sandy pools, but few of them very deep. No great variety to the trees on the central flat. Pandanus abundant, and about half a dozen familiar species making up the bulk of the dense forest. Kukui trees rather noticeable on south side. Landshells not very abundant, perhaps too dry. Found a few under dead fallen leaves, and some on the green leaves of shrubs and tree trunks. Insect collecting poor, first because they were not very abundant, and second because one had to spend so much time watching out for the next step on this bad-land limestone.