返回Google圖書搜尋

Tibet and the Tibetans

出版	Theclassics.Us, 2013-09
ISBN	12303036939781230303697
URL	http://books.google.com.hk/books?id=3Tq0ngEACAAJ&hl=&source=gbs_api

註釋This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1906 edition. Excerpt: ... Such estimates contrast strangely with the fixture of the same line in the European Alps which is only 8,500 feet. East of the meridian of long. 92 E. the limit of perpetual snow drops lower; and the further east you pass the lower the line falls, especially in the southern regions, though in the tracts N. of lat. 31 N. the plane of this limit does not sink so rapidly. Thus, in the ranges about the sources of the Hoang Ho we find it adjusted by the Russian authorities at 16,000 feet. The estimate for Derge and Chhamdo is set at 15,800 feet. But much further south, as at Bat'ang (in lat. 30 V N.) the level of perpetual snow is said to be under 15,000 feet; while in the ranges of the Dzayul district we believe this line ought not to be set above 14,400 feet. The cause of the comparatively low level of perpetual snow in South-East Tibet is not an obscure one. Several of the great rivers of Tibet make exit from the land just where the S.-E. provinces and the Chinese provinces of Szechuan and Yunnan meet. The country in these parts, which is exceedingly mountainous and broken up, there receives continuously voluminous supplies of humid air, which are brought up straight from the ocean along the courses of the mighty rivers. Such southernly-flowing water-ways as the Salwin and Mekhong, which quit Tibet at this corner, form permanent funnels of ingress for the moist currents which rush up their valleys from the southern seas. The result is not only an excessive snow-fall but also an atmosphere of exceeding humidity, and which during many months of the year is laden with rain-films and directly retards evaporation. THE WIND. One of the greatest embarrassments of travel on the Tibetan highlands is the wind. It is incessant all...