THERE are two ways of jumping the rope. One is for the girl to turn it herself, going forward as if on a run, instead of jumping always in the same place. This way, in moderation, is healthful; for it is an easy, natural motion, straining no part of the body unduly. The other way to jump the rope is to get one girl at one end, and another at the other, and then jump until tripped or tired out. The latter method is always the favorite, first, because it becomes a game instead of an exercise, and secondly, because the girl has nothing to occupy her hands, and can devote all her energies to jumping. Here is where the danger comes in. The steps are all up and down, for three, and even four, minutes on a stretch. Every time the girl alights after a spring, she produces a slight—very slight—brain concussion. The action of the heart is greatly increased. After a full meal, to indulge in rope-skipping, particularly with other girls to turn, means dyspepsia and misery in a few years. Every one of these dangers is increased tenfold by that momentarily accelerated jumping-jack game in which the jumper tries to jump as fast as the turner turns, until both are ready to drop from exhaustion. "How many turns can you jump?" is prolific of more evil to girls than their mothers dream of. The determined rivalry with which two children will jump up and down till gasping for breath, their pulse at one hundred and twenty a minute, and the well-nigh visible blue veins in their foreheads swollen out by the quick, irregular pumping of the heart, is something wonderful to see.—Selected.