placidity of temperament peculiar to hard working farming communities elsewhere, is evident in the lower part of the valley. Scarcely a relic of the original forest remains, and the stone walls, earth walls, and drainage systems of beautifully dug deep ditches distinguish it from any country I have seen in New Guinea. Friday, December 9, 1938. Crossed the river by a suspension bridge about 1/2 hour downstream, at the beginning of the rapids, and collected about thirty species from the grass- lands and sparse brushes on the slopes. The bridge, made of large forest vines (not Calamus) and carrying a three foot decking of split timber, is the finest I have seen. Its lines are perfect, and remarkable engineering skill has been displayed in building the supporting piers. A guard of about ten men was posted on the cliff above the bridge on the far side when I crossed in the early morning, and when I returned in the heat of the day a smaller group was on watch beneath the trees shading the approach on the other side. The people of our camp locality are at war with the people lower down. In the early morning, when sounds carry far, they sit comfortably on sunny rocks and how defiance down the valley. Saturday, December 10, 1938. Had some good collecting on the vegetated edges of a great stone wash which extends from the foot of the hills to near the river upstream a little from camp. The material of the wash comes from a vast erosion gully which heads 1000 feet above the plain and practically cuts through a soft sandstone mountain. The wash has been deposited at different times and is probably carried down by bursting dams formed by landslips from the sides