Mr. Menzies had collected a few moths at light and among them were the large orange brown sphinx and a large orange yellow noctuid (?) with black markings on the underwing, not collected by me in Lau. Crossed the central basin to the south side and climbed the south grass covered ridge. The highest peak (which Mr. Borron says is about 730 feet high) is a grassy knob at about the middle of the south side. From its summit a splendid view of the central basin and surrounding ridges may be had. The basin is of volcanic material, grassy and a continuous sea of coconut palms. Along the stream, on the slopes of a small ridge at the foot of the south ridge and on a few small knobs rising from the floor there is rather dense forest. The south ridge, of which the peak is a part, runs east and west in a chain of rounded grassy peaks. It ends to the east on the south side of a small bay, but continues around the south-west side as a lower limestone ridge. On the west it rises again in two high grassy peaks or rounder ridges, about 600 to 680 feet elevation, the slopes of which are thickly covered by coconut palms. To the east of those is a broad flat or plateau, covered with green grass and with two small lakes on its surface. It is across this that the road from the landing runs. Along the north side of the basin is another high grassy ridge 680 ft. foot high with scrub, coconuts and casuarinas ending in the east in a wooded limestone ridge. The stream which drains the basin has its origin in the two high ridges at the west side. It enters the sea through the gap at the east side, emptying into a small, nearly enclosed bay. The manager's house, native compound and old abandoned sugar mill are near the stream at about the center of the basin. Another workman's house is situated near the western ridges. The grassy slopes of the south peak are underlain by a coarse gray sand- stone (?) [see sample] in which are fragments of a red brown material and also by beds of red-brown tuff (?) The hills are roamed by horses, cattle and