Speakers, singers and stammerers / by Frederick Helmore.

  • Helmore, Frederick.
Date:
1874
Catalogue details

Licence: Public Domain Mark

Credit: Speakers, singers and stammerers / by Frederick Helmore. Source: Wellcome Collection.

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    2. The second contains the apparatus by which vocal sounds are produced. _ 3- The third, by the muscular action of the lips, tongue jaw, and palate, is used in the formation of articulate sounds' 4. Articulate sounds or words may be produced without vibrations of the vocal cords by simply passing a current of air through the respiratory tutes with sufficient rush to pro- duce a whisper. 5- On the other hand, vocal sounds may be produced from the larynx without any articulation, as in simple vocali- zation, or singing without words. 6. The Lungs have other important functions, quite un- connected with the voice, and most essential to life _ Each of these agents, thus having, as has been shown mdividual as well as collective functions, must be trained separately as well as conjointly. To do this properly it is necessary to ascertain the construction of each, and to dis- cover what muscles are brought into actioA for the purposes of respiration, vocalization and articulation. Having ac- quired this knowledge, common sense will dictate the pro- priety of strengthening those muscles by judicious exercise and of bringing them by constant practice under the perfect control of the will. CHAPTER in. THE LUNGS. ^HE first agent in the production of sound, is that portion of the human frame called the hmgs:' The lungs are composed of a spongy and elastic texture, and are consequently capable of great expansion and contraction.