Chapter 3

BREATHING CONSIDERED THEORETICALLY AND PRACTICALLY.

Breathing the great essential--Misconceptions--Purpose of breathing as a vital process--The respiratory organs--Their nature--Relations of the lungs to the chest-wall--Expansion of the chest--Its diameters--The muscles of respiration--Personal observation--The diaphragm--Varying quantities of air breathed--Breathing when properly carried out by the singer or speaker is healthful 44