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The mouth of the Nile at this period must have emptied into the Mediterranean, near the great Pyramid of Gizah; and here the river must have begun to lay the foundation of modern Egypt along the border of the cretaceous formation.

Thus the geological record is in harmony with the traditions of the Priests as handed down to us by Herodotus, “Egypt is a gift of the Nile.” Within historic times, the elevating movement has been inappreciable. The Nile still continues to roll down its plenteous bounty of sand, and to spread unceasingly its desolating influence over the plains of Suez and along the coast of Egypt as far as Syria.

Capt. Pratt, in the Medina, made a careful survey of the coast, sounding and dredging with sufficient minuteness to determine the limit of Nile influence. Within this limit, the bottom was found to be composed of siliceous sands, differing in no respect from the sands of the desert about the Pyramids. Outside of the Nile sand, the bottom of the sea was found to be composed exclusively of calcareous particles. The suspended matter, which is greatest during the Nile floods, driven eastward along the coast, accumulates upon the beach in the form of dunes, and overwhelms the huts of the coast guard and the fishermen, and, in twelve months, nearly buried the Mosque of Brulos. Commencing its devastating march, it advances irresistibly toward Suez.