Sunday, August 31, 1924. Aiwa (W.) Ashore at about 9:15, landing on the sand beach at west end of the western island. Explored a large limestone cave toward west end. The caves run out and downward from a broken-in central pit, about 20 feet deep and 25 or 30 feet in diameter. The walls and ceiling drip, and are festooned with cinerous, purple and crystal white stalaglites. One of the caves: runs down nearly to sea level, (will take a light tomorrow and explore it more fully). Took specimens of stalaglite. Roll 64:4. Attempt to photograph interior of pit and entrance to one of the caves. Collected along south half of the island to west end and back on the north side. Small spider feeding on two bluebottle flies caught in web. Brown ants on fallen log. Small brown landshells on new leaves of a scandend shrub. Also a very few small landshells on twigs and leaves. There are also goats on the western island toward S.W. end. Caught a young walking stick (Phasnid) on a large green leaf. Returned to schooner at 3:30. Drew enlarged outline maps of Lakemba and the two reefs to the north- east of it, in which there are small islets. Monday, September 1, 1924. Aiwa (W. Island) Ashore at 6:30 returning to West island, which is better collecting. Further explored the limestone cave, going to the ends of all the rami- fications. Saw and heard a few small bats, such as I caught in the cave on Savaii, but the roof was too high to catch these. One of the arms slopes down practically to sea level and at its bottom