THE HISTORY [155]
to the following reasons, as I believe. During the winter it runs at its natural height, or a very little higher, because in those countries there is scarcely any rain in winter, but constant snow. When summer comes, this snow, which is of great depth, begins to melt, and flows into the Ister, which is swelled at that season, not only by this cause but also by the rains, which are heavy and frequent at that part of the year. Thus the various streams which go to form the Ister are higher in summer than in winter, and just so much higher as the sun's power and attraction are greater; so that these two causes counteract each other, and the effect is to produce a balance, whereby the Ister remains always at the same level. This, then, is one of the great Scythian rivers; the next to it is the Tyras, which rises from a great lake separating Scythia from the land of the Neuri, and runs with a southerly course to the sea. Greeks dwell at the mouth of the river, who are called Tyritae. The third river is the Hypanis. This stream rises within the limits of Scythia, and has its source in another vast lake, around which wild white horses graze. The lake is called, properly enough, the Mother of the Hypanis. The Hypanis, rising here, during the distance of five days' navigation is a shallow stream, and the water sweet and pure; thence, however, to the sea, which is a distance of four days, it is exceedingly bitter. This change is caused by its receiving into it at that point a brook the waters of which are so bitter that, although it is but a tiny rivulet, it nevertheless taints the entire Hypanis, which is a large stream among those of the second order. The source of this bitter spring is on the borders of the Scythian Husbandmen, where they adjoin upon the Alazonians; and the place where it rises is called in the Scythic tongue Exampaeus, which means in our language, "The Sacred Ways." The spring itself bears the same name. The Tyras and the Hypanis approach each other in the country of the Alazonians, but afterwards separate, and leave a wide space between their streams. The fourth of the Scythian rivers is the Borysthenes. Next to the Ister, it is the greatest of them all; and, in my judgment, it is the most productive river, not merely in Scythia, but in the whole world, excepting only the Nile, with which no stream can possibly compare. It has upon its banks the loveliest and most excellent pasturages for cattle; it contains abundance of the most delicious fish; its water is most pleasant to the taste; its stream is limpid, while all the other rivers near it are muddy; the richest harvests spring up along its course, and where the ground is not sown, the heaviest crops of grass; while salt forms in great plenty about its mouth without human aid, and large fish are taken in it of the sort called Antacaei, without any prickly bones, and good for pickling. Nor are these the whole of its marvels. As far inland as the place named Gerrhus, which is distant forty days' voyage from the sea, its course is known, and its direction is from north to south; but above this no one has traced it, so as to say through what countries it flows. It enters the territory of the Scythian Husbandmen after running for some time across a desert region, and continues for ten days' navigation to pass through the land which they inhabit. It is the only river besides the Nile the sources of which are unknown to me, as they are also (I believe) to all the other Greeks. Not long before it reaches the sea, the Borysthenes is joined by the Hypanis, which pours its waters into the same lake. The land that lies between them, a narrow point like the beak of a ship, is called Cape Hippolaus. Here is a temple dedicated to Ceres, and opposite the temple upon the Hypanis is the dwelling-place of the Borysthenites. But enough has been said of these streams. Next in succession comes the fifth river, called the Panticapes, which has, like the Borysthenes, a course from north to south, and rises from a lake. The space between this river and the Borysthenes