To realize from potato-growing the greatest possible profits, (and profits are what we are all after,) the following conditions must be strictly adhered to: First, the ground chosen _must be dry_, either naturally or made so by thorough drainage; a gently sloping, deep, sandy or gravelly loam is preferable. Second, the land should be liberally enriched with humus by some of the means mentioned, if it is not already present in the soil in sufficient quantities, and the soil should be deeply and thoroughly plowed, rendering it light, porous, and pulverulent, that the air and moisture may easily penetrate to any desirable depth of it; and a proper quantity of either wood-ashes or lime, or both, mixed with common salt, should be harrowed into the surface before planting, or be applied on top of the hills immediately after planting. And, finally, the cultivation and after-care should be _prompt_, and given as soon as needed. Nothing is more conducive to failure, after the crop is properly planted, than failure in promptness in the cultivation and care required. GENERAL REMARKS ON MANURING WITH GREEN CROPS. Experience proves that no better method can be adopted to bring up lands partially exhausted, which are remote from cities, than plowing under green crops. By this plan the farmer can take lot after lot, and soon bring all up to a high state of fertility. True, he gathers no crop for one year, but the outlay is little; and if in the second year he gathers as much from one acre as he formerly did from three, he is still largely the gainer.