Along the south foot of the Tian-shan, and in the high valleys which intervene between the constituent ranges of that system, there exist numerous flourishing oases, such as Uch-turfan, Ak-su, Kucha, Korla, Kara-shahr, Hami, Barkul, Turfan, Urumchi, Manas and Kulja.
Nevertheless certain of the oases are famous individually for one or more handicrafts: for instance, Khotan for its silks, white carpets and felt goods; Kashgar and Turfan for cottons, Kucha and Kara-shahr for leather and saddlery, Ak-su for felts and leather and metal goods, Yarkand for silks, carpets and felts, and Urumchi and Uch-Turfan for sulphur.
The caravan routes mostly followed between China and the more populous centres (Kashgar and Yarkand) of East Turkestan start from An-si-chow and Sa-chow respectively, converge upon Hami on the north side of the Pe-shan swelling, and continue westward along the south foot of the Tian-shan Mountains through the oases of Turfan, Kara-shahr, Korla, Kucha, Ak-su and Uch-turfan.
Griinwedel, at Kucha and Korla, two other oases at the south foot of the Tian-shan Mountains.
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