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Show . .' ' ,1 voles Pictures. 8o teat future generations might be able to compare the quality of her song vlth that of voices yet unheard, Melba consented to sing -Into Professor Low's t audiometer, an , instrument which photographs the waves of sound as thr come from the singer's lips. This photograph Is quite different from that o: any other voice ever recorded. No ottyr has had anything resembling the sane variation combined with th same legularlty. It Is full of harmonics and taflnlteslmal variations In the wave, but these waves are perfect In regularity. This might account for its carrying power, by superlmposltlon, since It Is not a loud voice In the ordinary ordi-nary tense. |