derly, and, consequently, beneficial manner, it is | rience the dreadful consequences. Observe, all necessary that the body be in a natural and up- the short ribs, from the lower end of the breast right position. The following engraving repre- bone, are unnaturally cramped inwardly toward sents the Thorax, or Chest, which contains the Heart and Lungs; and reason teaches, that no organs should be in the least infringed upon, either by compressions, or by sitting in a bent position. The Lungs are reservoirs for the air, out of which we make sounds, by condensation. All are familiar with the hand-bellows: observe the striking analogy between it and the body, in the act of speaking, singing and blowing. The wind-pipe is ike its nosle, the lungs like the sides, and the abdominal and dorsal muscles, like its handles; of course, to blow with ease and power, one must take hold of the handles; to speak and sing right, the lower muscles must be used; for there is only one right way of doing anything. 7 Long Ribs,.. Diaphragm,.. 5 Short Ribs,.. Dorsal and Abdominal Muscles.. 14. This is a view of a well developed and naturally proportioned chest; with space for the Lungs, the short ribs thrown outwardly, affording ample room for the free action of the organs: it is the true model of the form of one who would live to a good old age. 15. TIGHT DRESSING. No one can enjoy good health, or perform any kind of labor with ease, or read, speak, or sing, when the thorax is habitually compressed. It diminishes the capacity of the lungs, for receiving the necessary quantity of air to purify the blood, and prevents the proper action of the diaphragm. The following engraving shows the alarming condition of the chest, when compressed by tight lacing; a practice that has hurried, and is now hurrying, hundreds of thousands to a premature grave; besides entailing upon the offspring an accumulation of evils, too awful to contemplate. What is the difference between killing one's self in five minutes with a razor, and doing it in five years by tight lacing, or any other bad habit? Our clothing should never be so tight laxed nervous filament ramified through the fibres, as to prevent the air from coming between it and the body. as seen under the microscope; and the lower one in a state of contraction, and the fibres in zigzag lines, with a similar nervous filament passing over them: apply the principle to all muscles. The subject might be greatly extended; but for further information, see the Author's large work on Physiology and Psychology, which will 16. Here follows an outline of the chest, or thorax of a female, showing the condition of the bones of the body, as they appear after death, in every one who has habitually worn stays and cors, ts, enforced by tight lacing. But,' says one, I do not lace too tight. If you lace at all, you most certainly do, and will, sooner or later, expe- be published as soon as convenient. 18. Here is a representation of the Air Cells | viscera and diaphragm upwards the lungs co ! the Lungs, laid open and highly magnified. it undergoes a purification: hence may be seen the importance of an upright position, and perfect inflation of the lungs; no one can live out his days without them. 19. Here are two attitudes, sitting, and standing, passive and active. Beware of too much operate with the diaphragm and abdominal muecles; or rather, the soul, mind, nerves and mus cles act unitedly, and thence with ease, grace and effect. Observe, the Stomach, Liver, &c. are below the diaphragm, and are dependent on it, in a measure, for their actions. stiffness, and too much laxity, of the muscles; be natural and easy. Avoid leaning backwards or forwards, to the right or left: and especially, of resting your head on your hand, with the elbow on something else: by which practice, many have caused a projection of one shoulder, induced spinal affections, &c. Beware of every thing that is improper: such as trying how much you can lift with one hand, &c. 20. Here follows a representation of the position of the diaphragm, and illustrations of its actions, in exhaling and inhaling. Figure 1, in the left engraving, represents the diaphragm in its greatest descent, when we draw in our breath: 2, muscles of the abdomen, when protruded to their full extent, in inhaling: 1, in the right engraving, the diaphragm in its greatest ascent in expiration: 2, the muscles of the abdomen in action, forcing the and wholly fill up the cavity of the chest: every one has two hearts, for the two different kinds of auricle, that receives all the blood from every part blood, and each heart has two rooms: a, right of the body, through the vena cava, or large vein, which is made up of the small veins, e, e, e, e, e; it thence passes into the right ventricle, i, thence into both lungs, where it is purified; after which it passes into the left auricle, and left ventricle, then into the aorta, o, and the carotid and subcla vian arteries (u, and v,) to every part of the body. returning every three or four minutes. pipe, and enter the lungs about one third of the distance from the upper end: hence, how foolish for persons having a sore throat, or larynx, to suppose they have the bronchitis; which consists in a diseased state of the bronchia; generally brought on by an improper mode of breathing, or speaking, &c., with exposure. The remedy may be found in the practice here recommended, with a free use of cold soft water over the whole body, and bandages wet with the same, placed about the chest and neck, to be removed every few ours, as they become dry. 24. Here is a front view o the Vocal Organs. e is the top of the wind-pipe, and within and a little above d is the larynx, or vocal box, where 23. Here is a horizontal view of the Glottis: N, F, are the arytenoid cartilages, connected with the chordæ vocales, (vocal cords, or ligaments,) T, V, stretching across from the top of the arytenoid to the point of the thyroid cartilage: these cords can be elongated, and enlarged to produce lower souris, and contracted and diminished for righer ones: and, at the same time, separated from each other, and allowing more condensed air to pass for the former purposes; or brought nearer together, to favor the latter: there are a great many muscles attached to the larynx, to give variety to the modifications o voice in speech and song. Y |