A very great majority of Americans are the sons either of farmers or merchants, mechanics or laborers. The work of each class soon develops peculiar characteristics. No one of the four classes has ordinarily had any training at all aimed to make him equally strong all over. Broad as is the variety of the farmer's work, far the greater, and certainly the heavier, part of it tends to make him stoop forward and become inerect. No man stands up straight and mows. When he shovels, he bends more yet; and every ounce of spade or load pulls him over, till, after much of this sort of work, it requires an effort to stand upright. Ploughing is better for the upper body, but it does not last long. While it keeps one walking over uneven ground, it soon brings on an awkward, clumsy step, raising, as it does, the foot unnaturally high. Chopping is excellent for the upper man, but does little for his legs. In hand-raking and hoeing the man may remain erect; but in pitching and building the load, in nearly every sort of lifting, and especially the heavier sorts, as in handling heavy stone or timber, his back is always bent over. It is so much easier to slouch over when sitting on horse-rake, mower, or harvester, that most persons do it. Scarcely any work on a farm makes one quick of foot. All the long day, while some of the muscles do the work, which tends to develop them, the rest are untaxed, and remain actually weak. A farmer is seldom a good walker, usually hitching up if he has an errand to go, though it be scarce a mile away; and he is rarely a good runner. He is a hearty, well-fed man, not only because wholesome food is plenty, but because his appetite is sharp, and he eats with relish and zest. Naturally a man thinks that, when he eats and sleeps well, he is pretty healthy, and so he usually is; but when he is contented with this condition of things, he overlooks the fact that he is developing some parts of his body, and leaving others weak; that the warp he is encouraging in that body, by twice as much work for the muscles of his back as for those of the front of his chest, while it enlarges the former, often so as to even render it muscle-bound, actually contracts the latter, and hence gives less room for heart, lungs, stomach, and all the vital organs, than a well-built man would have. If a man should tie up one arm, and with the other steadily swing a smith's hammer all day, there is little doubt that he would soon have an excellent appetite and the sweet sleep of the laboring man. But in what shape would it leave him in a few years, or even in a few months? The work of the farmer, ill-distributed as to the whole man, leaves him as really one-sided as the former. It is in a lesser degree, of course, but still so evident that he who looks even casually may see it.