But one exercise more need be mentioned here. Stand erect; now draw the head and neck back of the vertical all of eight inches, until you face the ceiling. Starting with the dumb-bells high up over the head, keeping the elbows straight, lower the dumb-bells slowly, until now you are holding them at arm's-length, with your arms spread, as on a cross. Then lift them up again, lower, and continue. If this does not spread the chest open, it will be hard to find anything which will. Do this consecutively twenty times every day for a month. That number will take scarcely a minute to accomplish, but the little one-pound bells will feel wondrously heavy before the minute is over. Here, then, have been shown quite a variety of exercises, not only safe and simple but inexpensive, which can readily be adopted in any school. If they are followed up as faithfully and steadily as are the other lessons, they cannot fail to bring decided and very welcome improvement in the shape and capacity of all the muscles, and hence of the whole body, while it will go far toward giving to all the scholars an erect and healthy carriage. These results alone would delight many a parent's heart. The making this branch of instruction as compulsory as any other would soon accustom the pupil to look for it as matter of course. If it were conducted with spirit, it would always be sure to prove interesting, and very likely to send the children back to their studies much fresher and brighter for the temporary mental rest. Besides these exercises, the teacher, insisting on the value of an erect position in school hours, whether the pupil be standing or sitting, and by inculcating the value of this, would soon find that these efforts were being rewarded by making many a crooked girl or boy straight, and so lessening their chance of having either delicate throats or weak lungs. Care should be taken that the school chairs have broad and comfortable seats, and that the pupil never sits on a half of the seat or on the edge of it, but far back, and on the whole of it. This apparently small matter will assist marvellously in forming the habit of an erect position while sitting. Some twenty years ago a Mrs. Carman, of Boston, devised a chair-back which should just fit the hollow of the back when the back was held erect, as it should be. This simple contrivance greatly encouraged a good position in sitting, and could well be made a part of the standard chair in our schools. A pad of the right shape, hung on the back of the chair, would effect the same object.