If anyone takes this view of Asia, that it is divided by the Tauros and the Kaukasos from west to east, then he finds that it is formed by the Tauros itself into two great sections, one of which lies towards the south and the south wind, and the other towards the north and the north wind. The southern section is divided into four parts, of which, according to Eratosthenês, India is the largest, this being also the opinion of Megasthenes who resided with Siburtios the satrap of Arakhôsia, and who tells us that he frequently visited Sandrakottos the king of the Indians.[86] They say that the smallest part is that which is bounded by the river Euphrates, and which extends to our own inland sea, while the other two parts which lie between the river Euphrates and the Indus will scarcely bear comparison with India even if both were taken together. They also say that India is bounded towards the east and the east wind as far as the south by the Great Sea, and towards the north by Mount Kaukasos, as far as its junction with the Tauros, while the river Indus cuts it off from other countries towards the west and the north-west wind as far as the Great Sea. The larger portion of India is a plain, and this, as they conjecture, has been formed from the alluvial deposits of the rivers, just as in other countries plains which are not far off from the sea are generally formations of their respective rivers, a fact which explains why the names of such countries were applied of old to their rivers. There is, for instance, in the country of Asia the plain of the Hermos, a river which rises in the mountain of Mother Dindymênê, and on its way to the sea flows past the Aiolian city of Smyrna. There is again another Lydian plain, called that of the Kaÿstros, which is a Lydian river, and another plain in Mysia, that of the Kaïkos, and another in Karia, that of the Maiandros, which extends as far as the Ionian city of Milêtos. In the case of Egypt again, the two historians, Herodotos, and Hêkataios (or at any rate the author of the work on Egypt, if he was other than Hêkataios) agree in declaring that in the same way Egypt was the gift of its river,[87] and clear proofs have been adduced by Herodotos in support of this view, so that even the country itself got perhaps its name from the river, for that in early times Aigyptos was the name of the river which the Egyptians and other nations now call the Nile the words of Homer sufficiently prove, since he says[88] that Menelaös anchored his ships at the mouth of the river Aigyptos. Now if the rivers we have mentioned, which are of no great size, can each of them separately form in its course to the sea a large tract of new country, by carrying down silt and slime from the upland districts in which they have their sources, there can be no good reason for doubting that India is mostly a plain which has been formed by the alluvial deposits of its rivers.[89] For if the Hermos and the Kaÿstros