It only remains for us to give a few directions as to the time, place, and circumstances of exercise. The best time for the elementary exercises is when the air is cool, as, even in summer, it is early in the morning, or after the sun has declined; and they should never immediately follow a meal. The best place for these elementary exercises is a smooth grass-plat, or a firm sandy sea-beach. Chasms, stones, and stakes, are always dangerous. At the commencement, the coat and all unnecessary clothes should be laid aside; and all hard or sharp things should be taken from the pockets of the remaining dress. A very light covering on the head, as a straw hat, is best; the shirt-collar should be open, the breast being either exposed or thinly covered; the waistband of the trousers should not be tight, and the boots or shoes should have no iron about them. As sudden transitions are always bad, exercise should begin gently, and should terminate in the same manner. The left hand and arm being commonly weaker than the right, they should be exercised till they become as strong. This custom is advantageous, not only for all military and mechanical gymnastic exercises, but also for all their operations. The being cooled too quickly is injurious. Therefore, drinking when very hot, or lying down on the cold ground, should be carefully avoided. No exertion should be carried to excess, as that only exhausts and enfeebles the body. Therefore, whenever the gymnast feels tired, or falls behind his usual mark, he should resume his clothes, and walk home. The moment exercise is finished, the clothes should always be put on, and the usual precautions adopted to prevent taking cold. The necessary fittings-up of an exercising ground are a leaping stand, a vaulting horse, a balancing bar, a climbing stand, with ladders, poles, and ropes, which may be seen united as simply and economically as possible, in a subsequent sketch--(Plate XVIII. CLIMBING.) In most exercises, a belt or cincture is of utility; and it seems, in all ages, to have been naturally employed. The weakest savage, who could not follow others in the course without panting, would find, by placing his hand over his abdomen, and supporting the liver and other organs which descend into that cavity, that he was aided in running, and breathed more easily; and thence he would make for himself a belt. United in societies, men would still preserve their belt, though it might not seem particularly advantageous, except to those whose active mode of life approached a primitive state, such as travellers, couriers, and porters.