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November 5, 1892

THE EDISON PHONOGRAPH AND THE BETTINI MICRO-PHONOGRAPH.THE PRINCIPLES UNDERLYING THEM AND THE FULFILMENT OF THEIR EXPECTATIONS. Read in the Section of Laryngology and Otology, at the Forty-third Annual Meeting of the American Medical Association, held at Detroit. Mich., June, 1892.

JAMA. 1892;XIX(19):546-553. doi:10.1001/jama.1892.02420190010001c
Abstract

Gentlemen: I intend to lead you into the mystery of mysteries, by the demonstrations I am about to make and explain to you, regarding the adoption of the Edison phonograph and the Bettini micro-phonograph as an aid to our and other sciences. It will be necessary for me to make some explanatory remarks in order that you more fully comprehend the real mechanism of these wonderful contrivances of the age, both from a physical and mechanical point. I will then follow up by illustrating to yon clinical phonograms, and other records and will then take before you several such records so as to demonstrate the practicability of my investigations.

The value of these two machines cannot be overestimated at the present time of my experimentations, and here I wish to state, that even some of my crude methods of taking and reproducing records or phonograms are not as yet sufficiently developed

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