Gage, Alfred P. (Alfred Payson), 1836-1903 · Boston, London, Ginn · leaf 258
Fig. 194. … VOCAL ORGANS. 241 top of the windpipe. The air-passage b between these chordsis freely open while a person is breathing; bnt when hespeaks or sings, they are brought together so as to form a nar-row, slit-like opening, thus making asort of double reed, which vibrateswhen air is forced from the…
Physics
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