In simple language, irrigation means the turning of desert into richly fertile producing land. A great deal has been said and done, but everything points to the fact that, however great and productive a garden Egypt has been for countless years, it is still almost, as it were, in its infancy. The erection of that stupendous piece of engineering, the Assouan Dam, has already had effects that have surpassed the expectations of its projectors; and writing upon this subject, Sir William Willcocks, a gentleman whose knowledge of the position is of the highest value, points out a series of facts that are almost startling in their suggestions. He draws attention to the fact that there are still two million acres of excellent land waiting to be reclaimed after the simple fashion herein described, and then requiring to be irrigated to the full extent needed--that is to say, perennially. These are large figures to deal with, but Egypt is a vast country, and its powers of production almost beyond belief; but everything is bound up in the one need--water supply; and it is this furnishing of life to plants, and enabling them to find it latent, as it were, in the far-spreading plains that are as yet but sand and dust, that is taking the attention of our great engineers. Here they find room to exert their powers. It is only a year ago that we had the inauguration of the first great stride; and now we are told that the thirsty country asks for more. To fully carry out the perennial irrigation that shall fertilise the two million acres still waiting, "the country requires one milliard of cubic metres of water per five hundred thousand acres"--that is to say, four times that quantity. At the present time, with the height to which it has been already erected, the Assouan Dam holds up and supplies one milliard of these cubic metres of water in all, a sufficiency for five hundred thousand acres of agricultural and garden land. It is proposed to raise it twenty-one feet higher, with the result that its holding powers will be so vastly increased that the supply will be doubled, and hence be sufficient for another five hundred thousand acres. But even then there will be a milliard acres still waiting for a supply of water to the extent of two milliards of cubic metres of water for themselves. Whence is this supply to come? The engineers are ready with their answer, and only ask for the capital, not to float some mad scheme, but to spread bounteously the rich water which turns, as above said, the desert into fertile land.