* Élie de Beaumont, "The great distinction of the Nile Delta lies in the almost uniform persistence of its coast-line.... The present sea-coast of Egypt is little altered from that of three thousand years ago." The latest observations prove it to be sinking and shrinking near Alexandria to rise in the neighbourhood of Port Said.
** Others, as for example Schweinfurth, are more moderate in their views, and think "that it must have taken about twenty thousand years for that alluvial deposit which now forms the arable soil of Egypt to have attained to its present depth and fertility."
This figure is certainly exaggerated, for the alluvium would gain on the shallows of the ancient gulf far more rapidly than it gains upon the depths of the Mediterranean. But even though we reduce the period, we must still admit that the Egyptians little suspected the true age of their country. Not only did the Delta long precede the coming of Menés, but its plan was entirely completed before the first arrival of the Egyptians. The Greeks, full of the mysterious virtues which they attributed to numbers, discovered that there were seven principal branches, and seven mouths of the Nile, and that, as compared with these, the rest were but false mouths.
[Illustration: 006.jpg THE MOUTH OF THE NILE PREVIOUS TO THE FORMATION OF THE DELTA.]
As a matter of fact, there were only three chief outlets. The Canopic branch flowed westward, and fell into the Mediterranean near Cape Abûkîr, at the western extremity of the arc described by the coast-line. The Pelusiac branch followed the length of the Arabian chain, and flowed forth at the other extremity; and the Sebennytic stream almost bisected the triangle contained between the Canopic and Pelusiac channels. Two thousand years ago, these branches separated from the main river at the city of Cerkasoros, nearly four miles north of the site where Cairo now stands. But after the Pelusiac branch had ceased to exist, the fork of the river gradually wore away the land from age to age, and is now some nine miles lower down.[*] These three great waterways are united by a network of artificial rivers and canals, and by ditches--some natural, others dug by the hand of man, but all ceaselessly shifting. They silt up, close, open again, replace each other, and ramify in innumerable branches over the surface of the soil, spreading life and fertility on all sides. As the land rises towards the south, this web contracts and is less confused, while black mould and cultivation alike dwindle, and the fawn-coloured line of the desert comes into sight. The Libyan and Arabian hills appear above the plain, draw nearer to each other, and gradually shut in the horizon until it seems as though they would unite. And there the Delta ends, and Egypt proper has begun.