39) TAE Batchelor, May 1889 890408, 325.6
34) Scientific American.
36) Tate TAE, July 1892, 1892 Lab Business Conditions;
Tate, Open door, pp. 247-248.
. LXII <26 April 1890), 263; Annot G
Morrison TAE, July 1895.
35) Scientific American, LXII <26 April 1890), 263; Tate to
Lippincott, Mov 1888, 870621, 394.
37) Mark Ham, "Edison and the Phonograph," 17. phono United .
38) Edison’s handwritten notes phonograph development found
in 880103 and dated from 1890, 1890 Phonograph
