Abstract
THE results obtained by Messrs. Jenkin and Ewing in their experiments with the phonograph, as described in NATURE, vol. xvii. p. 384, are so different from those reached in some experiments recently performed by Dr. Clarence J. Blake, of this city, in connection with myself, that I venture to call attention to the fact.
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CROSS, C. Helmholtz's Vowel Theory and the Phonograph. Nature 18, 93–94 (1878). https://doi.org/10.1038/018093b0
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DOI: https://doi.org/10.1038/018093b0
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