These shy nomads remained in camp two days and allowed themselves to be photographed. One morning seven of them went out to look for game, armed with their long sumpitans and carrying on the right side, attached to the girdle, the bamboo casket that contained the darts. They formed a thrilling sight in the misty morning as in single file they swung with long, elastic steps up the hill. Though the Punans are famous as hunters and trappers, they returned in a few hours without any result. Next morning when I ventured to begin taking their measurements they became uneasy and one after another slipped away, even leaving behind part of their promised rewards, rice and clothing for the women, and taking with them only tobacco and a large tin of salt, which I rather regretted, as they had well earned it all. We made a trip of a few days' duration to the next elevation, Gunong Rega, in a northerly direction, most of the time following a long, winding ridge on a well-defined Punan trail. The hill-top is nearly 800 metres above sea-level (2,622 feet), by boiling thermometer, and the many tree-ferns and small palm-trees add greatly to its charm and beauty. Toward the end of February I made my way back to the river. From our last camp, one day's march downward, three of my strongest Kayans had carried 45 kilograms each. My Javanese cook, Wong Su, on arriving in camp, felt ill and I found him lying prostrate. He had not been perspiring on the march down the hills and complained of chilly sensations. He also presented the symptoms of a cold attack of malaria, but it was simply the effects produced by the bites of leeches, to which he was particularly susceptible. He had seven bites on one ankle and two on the other, and the resulting wounds were swollen and suppurating, but by the application of iodine followed by hot compress bandages, he was able to resume his work in three days. Nevertheless, suppuration formed even at a distance from the wounds, and five months later they were not entirely healed. It is bad policy to remove leeches forcibly in spite of the temptation to do so. The application of salt or tobacco juice makes them drop off, and the wounds are less severe, but few persons have the patience to wait after discovering a leech. The animal is not easily killed. The Dayaks always remove it with the sword edge and immediately cut it in two.