way through them to the lake, for on the flat land below their mouths there were winding ribbons of glancing silver. Moreover two of my men, one of them a Cossack, who had been out in search of me along the western and southern shores of the Addan-tso, and met us here at the Tsangmo-rapga, told me, that they had passed not less than eight active streams, all of which issued out of the mountains to the south, and one of these was especially broad and full of water, though not very deep, only reaching up to their horses' knees.