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    about 1/2 in. long + half an inch broad see Fig 3. Trans/Recv
    S is the clock spring M the magnet, Upon singing into A sounds were heard at z and upon singing into Z sounds were heard at A much more distinctly that in any of the preceeding cases.

  1. Arrangement as in Fig 4. M magnet + S spring attached to stretched membrane. On speaking into A sounds were perfectly audible from z. Much louder than any yet obtained with the voice. Unmistakeably articulate sounds proceeded from z. Vowel sounds
[PrevPage] [Next] [INDEX ]  Volume 1   1 Apr. 1876    Page 85  [Source] [ NOTES ]