On the map it is precise and rectilinear as a chessboard, but driving past you would hardly notice it, a boundary line or ragged margin, a shallow swale that cups a simple trickle of water, less rill than rivulet, more gully than dell, a tangled ditch grown up throughout with a fearsome assortment of wildflowers and bracken. There is no fence, though here and there a weathered post asserts a former claim, strands of fallen wire taken by the dust. To the left a cornfield carries into the distance, dips and rises to the blue sky, a rolling plain of green and healthy plants aligned in close order, row upon row upon row. To the right, a field of wheat, a field of hay, young grasses breaking the soil, filling their allotted land with the rich, slow-waving spectacle of their grain. As to the farmers, they are, for the most part, indistinguishable: here the tractor is red, there yellow; here a pair of ditty hands, there a pair of dirty hands. They are cultivators of the soil. They grow crops by pattern, by acre, by foresight, by habit. What corn is to one, wheat is to the other, and though to some eyes the similarities outweigh the differences it would be as unthinkable for the second to commence planting corn as for the first to switch over to wheat. What happens in the gully between them is no concern of theirs, they say, so long as the plow stays out, the weeds stay in the ditch where they belong, though anyone would notice the wind-sewn cornstalks poking up their shaggy