July-5 suspecting that these would be almost the last of this species that we would encounter during the expedition. In fact, after reaching Mongi River drainage we never heard another of these curious little frogs with their ventriloqual piping calls. Hoogland's camp, which came to be known in my notes as the "Plains of Ulur Camp" came into sight at 4:00 P.M. The carriers set up camp just within the fringe of the tall forest and bedded down in bark shelters for the night. Hoogland had set up camp on a high rise of ground in the grassland just outside the edge of the forest, and about 100 yards above and to the west of where the Mongi River emerged from the forest. The view to the north to the beautiful forest covered ridge of the Cromwell Mountains was a striking and never to be forgotten sight. The elevation at our camp site was 7,800 feet ( m.).