intake of breath, in as great an enlargement of the chest-cavity as is necessary to make room for the expansion of the lungs when inflated. But as clavicular breathing acts only on the upper ribs, it causes only the upper part of the chest to expand, and so actually circumscribes the space within which and the extent to which the lungs can be inflated. It is an effort to expand the chest that is only partially successful, therefore only partially effective.
In fact, clavicular, or high breathing, requires a great effort to supply only a small amount of air; and this not only necessitates a frequent repetition of an unsightly effort, but, in consequence, weakens the singer's control over his voice-mechanism, makes inspiration through the nostrils awkward and, when the air has to be renewed quickly, even impossible, obliging the singer to breathe in violently, pantingly, and with other disagreeable and distressing symptoms of effort, through the mouth. The correct method of breathing involves only what may be called the breathing-muscles, but it utilizes all of these, thus insuring complete and effectual action; whereas clavicular breathing secures only a partial coöperation of these muscles, and in the effort involved in raising the clavicle and shoulder-blades actually is obliged to call on muscles
that simply are employed to lift the weight of the body, have nothing whatever to do with breathing and, from their position, are a hindrance rather than an aid to chest-expansion.
A better name for the method of breathing that is called "abdominal" would be abominable. It is predicated upon an exaggerated idea of the force of the action required of the diaphragm, or midriff, the large dome-shaped muscle which separates the thoracic from the abdominal cavity, in other words, the cavity of the chest from the cavity of the stomach. It is true that some animals can get all the breath they require to maintain life by the action of the diaphragm alone, yet it is a mistake to predicate breathing, and especially inspiration, upon a more or less violent action of the diaphragm and the abdominal muscles. Both diaphragm and the abdominal muscles are, indeed, used in breathing, but not to the forcible extent that would justify applying the term "diaphragmatic" or "abdominal" to the correct method of respiration.
The abdominal style of breathing was advocated by the physiologist Mandl, and it is said that soon afterward in the schools of singing which followed his theory most unusual devices were practised
for the purpose of keeping the ribs in a fixed position and compelling the pupil to breathe by the action of the diaphragm and abdominal muscles only. Thus, the pupil was compelled to sing while lying down on a mattress, sometimes with weights placed on his chest. In fact, masters are said even to have made a practice of seating themselves upon the chests of their pupils. Gallows, with thongs and rings for binding the upper half of the body and keeping it rigid, corsets and a pillory, which enclosed the frame and held the ribs in a fixed position, were some of the apparatus used in teaching the art of singing based upon abdominal breathing.
I have characterized clavicular breathing as an upward perpendicular force, ugly and only partially effective. Abdominal or diaphragmatic breathing is a downward perpendicular force just as ugly and as ineffective, besides being positively harmful, the pressure of the diaphragm, if violently exerted, often being injurious to the organs of the body contained in the abdominal cavity and especially to the female organs of sex. Yet unfortunately and only too often, this style of breathing is taught to women, because women, owing to corsets and tight lacing, incline to breathe
too much with the upper chest (to employ clavicular or high breathing), which, however, does not justify teachers in going to the other extreme and, in order to overcome one faulty method, instructing their pupils in another that is faultier still and even physically harmful.
A more nearly correct method of breathing is the costal—that is by expansion and contraction of the ribs. It enlarges the chest cavity more than does either the clavicular or the diaphragmatic method; but does not enlarge it to its full capacity. Each method by itself alone, therefore, falls short of the complete result desired. With none of them are the lungs wholly filled with air, but only partly—the upper part and a portion of the central lungs in clavicular breathing, the lower part and a portion of the central lungs in diaphragmatic breathing, and the central and upper parts in costal breathing. The correct method combines the three—adds to the inflation of the central and upper parts of the lungs accomplished by costal breathing, the inflation of the lower part accomplished in diaphragmatic breathing and of the extreme upper part accomplished in clavicular breathing. In other words, the correct method inflates
the whole of the lungs and creates a cavity large enough to accommodate them.