65. The plain, which descends very suddenly from the hills, and is of considerable extent, is watered by two famous rivers, the OEchardes and the Bautis, which is less rapid than the other. The character too of the different districts is very varied. One is extensive and level, the other is on a gentle slope, and therefore very fertile in corn, and cattle, and trees. 66. The most fertile part of the country is inhabited by various tribes, of which the Alitrophagi, the Annibi, the Sisyges, and the Chardi lie to the north, exposed to the frost; towards the east are the Rabannæ, the Asmiræ, and the Essedones, the most powerful of all, who are joined on the west by the Athagoræ, and the Aspacaræ; and on the south by the Betæ, who live on the highest slopes of the mountains. Though they have not many cities they have some of great size and wealth; the most beautiful and renowned of which are Asmira, Essedon, Asparata, and Sera. 67. The Seres themselves live quietly, always avoiding arms and battles; and as ease is pleasant to moderate and quiet men, they give trouble to none of their neighbours. Their climate is agreeable and healthy; the sky serene, the breezes gentle and delicious. They have numbers of shining groves, the trees of which through continued watering produce a crop like the fleece of a sheep, which the natives make into a delicate wool, and spin into a kind of fine cloth, formerly confined to the use of the nobles, but now procurable by the lowest of the people without distinction. 68. The natives themselves are the most frugal of men, cultivating a peaceful life, and shunning the society of other men. And when strangers cross their river to buy their cloth, or any other of their merchandise, they interchange no conversation, but settle the price of the articles wanted by nods and signs; and they are so moderate that, while selling their own produce, they never buy any foreign wares. 69. Beyond the Seres, towards the north, live the Ariani; their land is intersected by a navigable river called the Arias, which forms a huge lake known by the same name. This district of Asia is full of towns, the most illustrious of which are Bitaxa, Sarmatina, Sotera, Nisibis, and Alexandria, from which last down the river to the Caspian Sea is a distance of fifteen hundred furlongs. 70. Close to their border, living on the slopes of the mountains, are the Paropanisatæ, looking on the east towards India, and on the west towards Mount Caucasus. Their principal river is Ortogordomaris, which rises in Bactria. They have some cities, the principal being Agazaca, Naulibus, and Ortopana, from which if you coast along the shore to the borders of Media which are nearest to the Caspian gates, the distance is two thousand two hundred furlongs. 71. Next to them, among the hills, are the Drangiani, whose chief river is the Arabis, so called because it rises in Arabia; and their two principal towns are Prophthasia and Aniaspe, both wealthy and well known.