I have two bits of warm, gravelly hill-side, which bountifully yield Corn, Wheat and Oats, but which are addicted to washing. I presume one of these bits, at the south-east corner of my farm, has been plowed and planted not less than one hundred times, and that at least half the fertilizers applied to it have been washed into the brook, and hence into the Hudson. To say that $1,000 have thus been squandered on that patch of ground, would be to keep far within the truth. And, along with the fertilizers, a large portion of the finer and better elements of the original soil have thus been swept into the brook, and so lavished upon the waters of our bay. But, since I had those lots thoroughly subsoiled, all the water that falls upon them when in tillage sinks into the soil, and remains there until drained away by filtration or evaporation; and I never saw a particle of soil washed from either save once, when a thaw of one or two inches on the surface, leaving the ground solidly frozen beneath, being quickly followed by a pouring rain, washed away a few bushels of the loosened and sodden surface, proving that the law by virtue of which these fields were formerly denuded while in cultivation is still active, and that Deep Plowing is an effective and all but unfailing antidote for the evil it tends to incite. We plow too many acres annually, and do not plow them so thoroughly as we ought. In the good time coming, when Steam shall have been so harnessed to a gang of six to twelve plows that, with one man guiding and firing, it will move as fast as a man ought to walk, steaming on and thoroughly pulverizing from twelve to twenty-five acres per day, I believe we shall plow at least two feet deep, and plow not less than twice before putting in any crop whatever. Then we may lay down a field in the confident trust that it will yield from two and a half to three tuns of good hay per annum for the next ten or twelve years; while, by the help of irrigation and occasional top-dressing, it may be made to average at least three tuns for a life-time, if not forever. When my Grass-land requires breaking up--as it sometimes does--I understand that it was not properly laid down, or has not been well treated since. A good grazing farmer once insisted in my hearing that grass-land should _never_ be plowed--that the vegetable mold forming the surface, when the timber was first cut off; should remain on the surface forever. Considering how uneven the stumps and roots and cradle-knolls of a primitive forest are apt to leave the ground, I judge that this is an extreme statement. But land once thoroughly plowed and subsoiled ought thereafter to be kept in grass by liberal applications of Gypsum, well-cured Muck, and barn-yard Manure to its surface, without needing to be plowed again and reseeded. Put back in Manure what is taken of in Hay, and the Grass should hold its own. XVI. THOROUGH TILLAGE.