On the whole, a practical farmer, who has no other source of income than the single occupation of agriculture, would be likely to ask, what is the realised value of Alderman Mechi's operations to the common grain and stock-growers of the world? They have excited more attention or curiosity than any other experiments of the present day; but what is the real resume of their results? What new principles has he laid down; what new economy has he reduced to a science that may be profitably utilised by the million who get their living by farming? What has he actually done that anybody else has adopted or imitated to any tangible advantage? These are important questions; and this is the way he undertakes to answer them, beginning with the last. About twenty years ago, he inaugurated the system of under-draining the heavy tile-clay lands in Essex. Up to his experiment, the process was deemed impracticable and worthless by the most intelligent farmers of the county. It was more confidently decried than his present irrigation system. The water would never find its way down into the drain-pipes through such clay. It stood to reason that it would do no such thing. Did not the water stand in the track of the horse's hoof in such rich clay until evaporated by the sun? It might as well leak through an earthenware basin. It was all nonsense to bury a man's money in that style. He never would see a shilling of it back again. In the face of these opinions, Mr. Mechi went on, training his pipes through field after field, deep below the surface. And the water percolated through the clay into them, until all these long veins formed a continuous and rushing stream into the main artery that now furnishes an ample supply for his stabled cattle, for his steam engine, and for all the barn-yard wants. His tile-draining of clay-lands was a capital success; and those who derided and opposed it have now adopted it to their great advantage, and to the vast augmentation of the value and production of the county. Here, then, is one thing in which he has led, and others have followed to a great practical result.