The History Of Herodotus Volume 1 of 2
Page: 20947. This they have found out, seeing that their land is suitable to it and at the same time the rivers are their allies: for first this land is plain land and is grassy and well watered, and then there are rivers flowing through it not much less in number than the channels in Egypt. Of these as many as are noteworthy and also can be navigated from the sea, I will name: there is Ister with five mouths, and after this Tyras, Hypanis, Borysthenes, Panticapes, Kypakyris, Gerros and Tanaïs. These flow as I shall now describe.
48. The Ister, which is the greatest of all the rivers which we know, flows always with equal volume in summer and winter alike. It is the first towards the West of all the Scythian rivers, and it has become the greatest of all rivers because other rivers flow into it. And these are they which make it great: 46—five in number are those 47 which flow through the Scythian land, namely that which the Scythians call Porata and the Hellenes Pyretos, and besides this, Tiarantos and Araros and Naparis and Ordessos. The first-mentioned of these is a great river lying towards the East, and there it joins waters with the Ister, the second Tiarantos is more to the West and smaller, and the Araros and Naparis and Ordessos flow into the Ister going between these two.
49. These are the native Scythian rivers which join to swell its stream, while from the Agathyrsians flows the Maris and joins the Ister, and from the summits of Haimos flow three other great rivers towards the North Wind and fall into it, namely Atlas and Auras and Tibisis. Through Thrace and the Thracian Crobyzians flow the rivers Athrys and Noes and Artanes, running into the Ister; and from the Paionians and Mount Rhodope the river Kios, 48 cutting through Haimos in the midst, runs into it also. From the Illyrians the river Angros flows Northwards and runs out into the Triballian plain and into the river Brongos, and the Brongos flows into the Ister; thus the Ister receives both these, being great rivers. From the region which is above the Ombricans, the river Carpis and another river, the Alpis, flow also towards the North Wind and run into it; for the Ister flows in fact through the whole of Europe, beginning in the land of the Keltoi, who after the Kynesians dwell furthest towards the sun-setting of all the peoples of Europe; and thus flowing through all Europe it falls into the sea by the side of Scythia.
50. So then it is because these which have been named and many others join their waters together, that Ister becomes the greatest of rivers; since if we compare the single streams, the Nile is superior in volume of water; for into this no river or spring flows, to contribute to its volume. And the Ister flows at an equal level always both in summer and in winter for some such cause as this, as I suppose:—in winter it is of the natural size, or becomes only a little larger than its nature, seeing that this land receives very little rain in winter, but constantly has snow; whereas in summer the snow which fell in the winter, in quantity abundant, melts and runs from all parts into the Ister. This snow of which I speak, running into the river helps to swell its volume, and with it also many and violent showers of rain, for it rains during the summer: and thus the waters which mingle with the Ister are more copious in summer than they are in winter by about as much as the water which the Sun draws to himself in summer exceeds that which he draws in winter; and by the setting of these things against one another there is produced a balance; so that the river is seen to be of equal volume always.