The whole of this country, though so near the tropic, is the coldest and bleakest inhabited by a civilised people on the surface of the earth, if we except Siberia. Forests of cedar, holly, and other Himalayan trees, are met with in the valleys of the extreme east, bordering upon China. Lhassa is surrounded with trees of considerable size; and a few straggling willows or poplars, artfully pollarded for the multiplication of their staves, are found by the watercourses of Ladakh and Tibet Proper; but the vast extent of the table-land is bare and desolate, and as devoid of trees as Shetland. The ancient Hindoos are said to have esteemed it as a vault over hell. The only shrubs that dot the waste are the Tartaric furze, or the wizened wormwood, with its white parched stalks, or perchance, in more favoured spots, a few stunted rose-bushes. Though the winter is long and severe, snow is not frequent in the valleys. The air is of a purity and brilliance which dazzles and fatigues the eye, and its excessive dryness produces effects analogous to those of the scorching May winds in the torrid plains of Hindostan;-- "The parching air Burns frore, and cold performs the effect of fire;" vegetation is dried to brittleness, and leaves may be rubbed between the fingers into dust. Mahogany chests, and furniture belonging to Turner's party, which had stood the climate of Bengal for years, warped and split under the cold dry winds of Tibet. Wood seems subject to no other cause of injury from time. As might be expected, tillage is scanty, and the population depend much on imported food. Villages are small, seldom containing more than twenty houses. These, in the better parts of the country, have a cheerful appearance, the dwellings being all white-washed, with doors and windows picked out in red or yellow. Lhassa would seem to be the only city of Tibet worthy of that title: the Chinese geographers, indeed, and native itineraries, speak of one or two others, but nothing is known of them. Teshoo Loombo on the Sanpoo, ten days from Lhassa, though the residence of the second personage in Tibet, seems to be merely a monastic establishment. Indeed, the large convents are probably, after Lhassa, the most considerable nuclei of population in the country; and Lhassa itself has perhaps grown to importance as an appendage to the Potála, or residence of the Grand Lama.