with impunity; for health, and even life, are often sacrificed to it. Corsets are used partly as a warm covering to the chest, and partly to furnish a convenient attachment to other parts of the female dress. This is all proper and correct; but to these uses fashion superadds others, originating in fantastical notions of beauty. Corsets are employed to modify the shape, to render the chest as small below, and as broad above, as possible, and to increase the elevation, fulness, and prominence of the bosom. To show how this affects the condition of the body, we must begin by giving a short description of the thorax or chest, which is the subject of this artificial compression. Every one who has seen a skeleton, knows that the chest consists of a cavity protected by a curious frame-work of bones. These are, 1st, the back-bone, (consisting of _vertebræ_, or short bones jointed into one another,) which sustains the whole upper part of the trunk; 2d, the breast-bone, about seven or eight inches long, and composed of three pieces; and 3dly, the ribs, of which there are generally twentyfour. The twelve ribs on each side are all fixed to the back-bone behind; seven of these, the seven uppermost, are also attached to the breast-bone before, and are, therefore, called _true ribs_. The eighth rib has its end turned up, and rests on the seventh; the ninth rests in the same way on the eighth; but the tenth, eleventh, and twelfth are not connected with one another in front at all. The fore extremity of each rib consists not of bone, but of an elastic substance called cartilage. The elasticity of this substance, combined with the oblique position of the ribs, constitutes a beautiful provision, in consequence of which the chest enlarges and contracts its volume, to afford free play to the lungs. We now wish to call attention to the form of this cavity, which, as we have seen, is surrounded and protected by the back-bone, ribs, and breast-bone, and is called the _thorax_, or chest. The uppermost pair of ribs, which lie just at the bottom of the neck, are very short; the next pair is rather longer; the third longer still; and thus they go on increasing in length to the seventh pair, or last _true_ ribs, after which the length diminishes, but without materially contracting the size of the cavity, because the false ribs only go round a part of the body. Hence the chest has a sort of conical shape, or it may be compared to the bee-hives used in this country, the narrow or pointed end being next the neck, and the broad end undermost. The natural form of the thorax, in short, is just the reverse of the fashionable shape of the waist. The latter is narrow below, and wide above; the former is narrow above, and wide below.