May-2 was now the accepted medium of exchange. Grierson and I left at 10:00 A.M. The trail immediately drops into a small stream bed at 840 meters. At 11:00 we neared the top of the ridge opposite 1,065 meters. The weather, which had threatened heavy rain early in the carry, now cleared, but the trails were still treacherous. A few minutes later we entered the small village of Pependangu with its well-swept red-earth foundation. From its ridge-top location one could see to the southwest the heavily-forested Rawlinson Range which fronts on the Huon Gulf. This range was later to be one of the prime objectives of the expedition and the virgin aspect of the terrain augered well for future collecting. After leaving the village and its garden plots the trail followed the contour to the west and then south to the crest of the second ridge south of Pindiu, and then led down the long ridge running south- east to the Mongi River. While still some distance from the Mongi the trail turned south again and dropped sharply into the bed of a beautiful rushing stream called the Masba at 580 meters. We arrived here at 12:30 P.M. About an hour after crossing the Masba we came to one of the main tributaries of the Mongi, the Kua 440 meters, which drains a large mountain-encircled valley in the heart of the Huon Peninsula. Having passed through what appeared to be largely undisturbed forest between the Masba and the Kua, I recalled the carriers, who were waiting at the Kua crossing, and we retraced our steps to a small but level stretch of forest just south of the Masba Creek crossing and high above the Mongi to the east. Here we made camp at an elevation of 610 meters. The Masba Creek camp was in operation from May 3 until May 23. At the Masba we were introduced to a practical way of supplying the camp with water. Seven to eight foot sections of bamboo four to six inches in diameter were