Book 11
8.8
Eratosthenes says, that the Bactrians lie along the Arachoti and Massagetae on the west near the Oxus, and that Sacae and Sogdiani, through the whole extent of their territory,τοῖς ὅλοις ὲδάφεσιν. are opposite to India, but the Bactrii in part only, for the greater part of their country lies parallel to the Parapomisus; that the Sacae and Sogdiani are separated by the Iaxartes, and the Sogdiani and Bactriani by the Oxus; that Tapyri occupy the country between Hyrcani and Arii; that around the shores of the sea, next to the Hyrcani, are Amardi, Anariacae, Cadusii, Albani, Caspii, Vitii, and perhaps other tribes extending as far as the Scythians; that on the other side of the Hyrcani are Derbices, that the Caducii are contiguous both to the Medes and Matiani below the Parachoathras.
8.9
These are the distances which he gives. Stadia. From the Caspian Sea to the Cyrus about 1800 Thence to the Caspian Gates 5600 Thence to Alexandreia in the territory of the Arii 6400 Thence to the city Bactra, which is called also Zariaspa 3870 Thence to the river Iaxartes, which Alexander reached, about 5000 Making a total of 22,670