Carried tent, blankets and provisions over to ravine (2850') and made camp - Mr. and Mrs. Beck and myself. The rocky ravine is not a stream bed, as it does not run either up or down, but consists of a series of pools and depressions. Mr. Beck and I agreed that it was either a broken in lava tube or a volcanic fault. It is about 25' wide and from 3 to 12 feet deep. Water accumulates in the deeper hollows. Thursday, May 8, 1924. Cut a trail to the W.S.W. and S.W. up to an elevation of about 4000', through a very wet forest. Sometimes following rocky stream beds, sometimes pig trails, but most of the time cutting our own trail. Collecting very poor, (1) because of time consumed in cutting trail, (2) because of extreme dampness and occasional showers, (3) because very few insects. Lots of nemocera diptora, espec. Psychodidae on the grass. Water striders and 4 spp. dragonflies about pools in stream beds. Bird collecting also poor. The ground slopes up gradually from the 3000' eastern plateau to a high western 5000' plateau. The highest peaks are located on top of this high plateau, culminating in Mauga sili-sili which is estimated to be from 5400 to 6094 feet elevation. Friday, May 9, 1924. Rained very hard during the night, soaking our camp, nearly drowning us out, and filling the pools in the ravine full. Caught a few water striders, hydrophilid beetles and water walking flies on these pools. Walked up to the peak just east of the pass through which the trail comes and about north of camp. By climbing to top of a tree was able to see most of eastern plateau and to check up most of the craters given on the small chart made by Wilkes. East point of Palauli Bay lay just to the west of the summit of Palelua peak. This peak (which I had climbed) is the rim of a large crater, the center of which sinks precipitously several hundred