To explain, however, more at length, the case is this. The sun, in his passage across the upper parts of Libya, affects them in the following way. As the air in those regions is constantly clear, and the country warm through the absence of cold winds, the sun in his passage across them acts upon them exactly as he wont to act elsewhere in summer, when his path is in the middle of heaven- that is, he attracts the water. After attracting it, he again repels it into the upper regions, where the winds lay hold of it, scatter it, and reduce it to a vapour, whence it naturally enough comes to pass that the winds which blow from this quarter- the south and south-west-are of all winds the most rainy. And my own opinion is that the sun does not get rid of all the water which he draws year by year from the Nile, but retains some about him. When the winter begins to soften, the sun goes back again to his old place in the middle of the heaven, and proceeds to attract water equally from all countries. Till then the other rivers run big, from the quantity of rain-water which they bring down from countries where so much moisture falls that all the land is cut into gullies; but in summer, when the showers fail, and the sun attracts their water, they become low. The Nile, on the contrary, not deriving any of its bulk from rains, and being in winter subject to the attraction of the sun, naturally runs at that season, unlike all other streams, with a less burthen of water than in the summer time. For in summer it is exposed to attraction equally with all other rivers, but in winter it suffers alone. The sun, therefore, I regard as the sole cause of the phenomenon.
It is the sun also, in my opinion, which, by heating the space through which it passes, makes the air in Egypt so dry. There is thus perpetual summer in the upper parts of Libya. Were the position of the heavenly regions reversed, so that the place where now the north wind and the winter have their dwelling became the station of the south wind and of the noon-day, while, on the other hand, the station of the south wind became that of the north, the consequence would be that the sun, driven from the mid-heaven by the winter and the northern gales, would betake himself to the upper parts of Europe, as he now does to those of Libya, and then I believe his passage across Europe would affect the Ister exactly as the Nile is affected at the present day.
And with respect to the fact that no breeze blows from the Nile, Iam of opinion that no wind is likely to arise in very hot countries, for breezes love to blow from some cold quarter.
Let us leave these things, however, to their natural course, to continue as they are and have been from the beginning. With regard to the sources of the Nile, I have found no one among all those with whom I have conversed, whether Egyptians, Libyans, or Greeks, who professed to have any knowledge, except a single person. He was the scribe who kept the register of the sacred treasures of Minerva in the city of Sais, and he did not seem to me to be in earnest when he said that he knew them perfectly well. His story was as follows:-"Between Syene, a city of the Thebais, and Elephantine, there are" (he said) "two hills with sharp conical tops; the name of the one is Crophi, of the other, Mophi. Midway between them are the fountains of the Nile, fountains which it is impossible to fathom. Half the water runs northward into Egypt, half to the south towards Ethiopia." The fountains were known to be unfathomable, he declared, because Psammetichus, an Egyptian king, had made trial of them. He had caused a rope to be made, many thousand fathoms in length, and had sounded the fountain with it, but could find no bottom. By this the scribe gave me to understand, if there was any truth at all in what he said, that in this fountain there are certain strong eddies, and a regurgitation, owing to the force wherewith the water dashes against the mountains, and hence a Sounding-line cannot be got to reach the bottom of the spring.
No other information on this head could I obtain from any quarter.
All that I succeeded in learning further of the more distant portions of the Nile, by ascending myself as high as Elephantine and making inquiries concerning the parts beyond, was the following:- As one advances beyond Elephantine, the land rises. Hence it is necessary in this part of the river to attach a rope to the boat on each side, as men harness an ox, and so proceed on the journey. If the rope snaps, the vessel is borne away down stream by the force of the current. The navigation continues the same for four days, the river winding greatly, like the Maeander, and the distance traversed amounting to twelve schoenes. Here you come upon a smooth and level plain, where the Nile flows in two branches, round an island called Tachompso. The country above Elephantine is inhabited by the Ethiopians, who possess one-half of this island, the Egyptians occupying the other. Above the island there is a great lake, the shores of which are inhabited by Ethiopian nomads; after passing it, you come again to the stream of the Nile, which runs into the lake.
Here you land, and travel for forty days along the banks of the river, since it is impossible to proceed further in a boat on account of the sharp peaks which jut out from the water, and the sunken rocks which abound in that part of the stream. When you have passed this portion of the river in the space of forty days, you go on board another boat and proceed by water for twelve days more, at the end of which time you reach a great city called Meroe, which is said to be the capital of the other Ethiopians. The only gods worshipped by the inhabitants are Jupiter and Bacchus, to whom great honours are paid.
There is an oracle of Jupiter in the city, which directs the warlike expeditions of the Ethiopians; when it commands they go to war, and in whatever direction it bids them march, thither straightway they carry their arms.
