This Great Prairie of England, generally called here the Fens, or Fenland, would be an interesting and instructive section for the agriculturists of our Western States to visit. They would see how such a region can be made quite picturesque, as well as luxuriantly productive. Let them look off upon the green sea from one of the upland waves, and it will be instructive to them to see and know, that all the hedge-trees, groves, and copses that intersect and internect the vast expanse of green and gold were planted by man's hands. Such a landscape would convince them that the prairies of Illinois and Iowa may be recovered from their almost depressing monotony by the same means. The soil of this district is apparently the same as that around Chicago--black and deep, on a layer of clay. It pulverises as easily in dry weather, and makes the same inky and sticky composition in wet. To give it more body, or to cross it with a necessary and supplementary element, a whole field is often trenched by the spade as clean as one could be furrowed by the plough. By this process the substratum of clay is thrown up, to a considerable thickness, upon the light, black, almost volatile soil, and mixed with it when dry; thus giving it a new character and capacity of production. Everything seems to grow on a Californian scale in this fen district. Although the soil thus rescued from the waters that had flooded and half dissolved it, was at first as deep, black, and naturally fertile as that of our prairies, those who commenced its cultivation did not make the same mistake as did our Western farmers. They did not throw their manure into the broad draining canals to get rid of it, trusting to the inexhaustible fertility of the alluvial earth, as did the wheat growers of Indiana and Illinois to their cost; but they husbanded and well applied all the resources of their barn-yards. In consequence of this economy, there is no deterioration of annual averages of their crops to be recorded, as in some of our prairie States, which have been boasting of the natural and inexhaustible fertility of their soil even with the record of retrograde statistics before their eyes. The grain and root crops are very heavy; and a large business is done in growing turnip seed for the world in some sections of this fen country. A large proportion of the quantity we import comes from these low lands.