As is well-known, vast tracts of Egypt are by nature sterile; but upon these barren primaeval sands there has been superimposed for uncountable ages the alluvium of the Nile, so that, as an old writer says, Egypt itself may be looked upon as the gift of one of the mightiest rivers of the world. He speaks of the Nile as being the father of this country, bounteous in its gift, a strange, mysterious, solitary stream which bears down in its bosom the riches of the interior of Africa, carrying onward from far away south the fertility of the luxuriant tropics, and turning the sterile sand into the richest soil of the world. It is this richness of the south that has changed the Delta from an arid waste into a scene of matchless beauty. One gazes upon it from the summit of one of the pyramids or some high citadel, over cities and ruins of cities, palm grove, green savannah, palace and garden, luxuriant cornfield, and olive grove. Far distant, shimmering in a silvery haze and stretching away into the dimness of the horizon, lies the boundless desert, now being rapidly reclaimed, consequent upon the great barrage experiments for the supplying of the many winding canals with the fertile waters of the parent river. And of these still growing distributors of life, these bearers of commerce, the numbers are almost beyond belief. They are the veins and arteries of the country, depositing as they do the rich soil which furnishes abundance, and then acting as the waterways upon which, in due time, the harvests are borne throughout the length and breadth of the land. There is a great discrepancy in the reports as to the number of these canals, and statements made and chronicled a few years back are not of much use as statistics at the present day; while the completion of the great dam will give such an impulse to their formation that the mileage, even if properly estimated now, will be useless as a basis ten years hence. One traveller, in his ignorance of the country, estimated the number of these irrigating water distributors as only ninety, while another of about the same date gives Upper Egypt alone six thousand. Probably, though, in this instance he included every branch and branchlet that led the water amongst the cultivated lands.