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Scientific American, Vol. 96, No. 19 (1907) (1907)

leaf 4

An illustration from Scientific American, Vol. 96, No. 19 (1907), 1907, leaf 4
May II, 1907. … words. In fact, many persons have a rather limited capacity of hearing ordinary speech but are able to hear distinctly either musical vibrations or noises. The reason is to be found in the more complex char- acter of spoken words. A graphical record of vowels (such as the flames of K6nig) is…

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