about 5o m. high. Yaks and horses without burdens are alone able to make their way there. Just under the pass there is a small open space known as Hama-gol, and there bushes exist on both sides of a small rivulet that issues from a spring. Between that point and the spot where our tents stood the glen of Dschong-duntsa is waterless. But in the summer, after rain, the glen sometimes becomes so filled with water that it is unable to find a passage, and the depth to which the bed is excavated is a proof of the energy with which the stream then performs its erosive work. The district above Hama-gol is called in Mongolian Ölken-tänesing, and in Chinese Tscheng-tscheng. From it goes off, to the west, the glen of Tsagantschiloto. The upper track is exactly the same distance from Camp CXXVI that
Chara-tschiloto is from the same camp. Between the two tracks comes the chain of foothills, which is said to begin in the district of Sa-go in the form of low hills, but it grows higher and bigger as it proceeds west, and finally comes to an end at Binguin-gol. The numerous passes along the upper track are so confusing that one is strongly inclined to believe, that what I have called a chain of foothills is nothing else than a series of considerable swellings on the northern spurs of the Anambaruin-ula. On the other hand, from the descriptions given to me it is quite clear that the chain in question really is a continuous and connected range running east and west, and parallel with the great main range to the south of it. But only a visit to the higher regions in summer can clear up the orography. Yet even now we may provisionally distinguish between the main range with its summits capped with perpetual snow the range of foothills which possesses no snow, except for accidental patches, and is moreover pierced by the four great glens of Aksä, Dschong-duntsa, Tsagan-tschiloto, and Lu-tschuen-tsa; and finally, far away
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