Following up the method, now let the class form around the side of the room, standing three feet apart, and about two feet from the wall. Place the hands against the wall, just at a level with and opposite to the shoulders. Now, keeping the heels all the time on the floor, let the body settle gradually forward until the chest touches the wall, keeping the elbows pretty near to the sides, the knees never bending a particle, and the face held upturned, the eyes looking at the ceiling directly overhead. Now push sharply off from the wall until the elbows are again straight, and the body back at vertical. Then repeat this, and continue six times for each half of the day for the first week. Keep on until you reach fifteen by the third week, and twenty-five by the second month. For expanding and deepening the chest, helping to poise the head and neck so that they will remain exactly where they belong--in an erect position--and for giving the main part of the upper back-arm quite a difficult piece of work to do, this will prove a capital exercise. Whoever will make a specialty of this one form of exercise until they daily take two or even three hundred such pushes, will find that any tendency he or she may have to flatness or hollowness of chest will soon begin to decrease, and will very likely disappear altogether. In this last exercise most of the weight was on the feet, the hands and arms sustaining the rest. If the aisles are not over two feet and a half wide, let each pupil stand between two opposite desks and place one hand on each. Now, walking back about three or four feet, his hands still resting on the two desks, let him, keeping his body rigid and knees unbent, bend his elbows and lower his chest very gradually until it is nearly or quite level with the desk tops, then slowly straighten up his arms, and so raise his body again to the original position. Three such dips twice a day the first week, five or six the second, and by the end of the month ten or twelve, and that number then maintained steadily, will open and enlarge the chest materially before the year is out, while at the same time doing much to increase and strengthen the upper back-arm. This is harder work than pushing against the wall, because the hands and arms now have to sustain a much greater portion of the weight of the body, but it is correspondingly better for the chest. Thus far exercises have been described calling for no apparatus at all, nor anything save a floor to stand on, a wall to push against, two ordinary school desks, and a fair degree of resolution. For children under ten, wooden dumb-bells, weighing one pound each, ought to be had of any wood-turner, and ought not to cost over five cents apiece. There might be one pair of dumb-bells given to each child, or, if the class is large, then a single dumb-bell for each, and they could be distributed among two classes for dumb-bell exercises.