[D8501B], Letter from Owen McKay to Thomas Alva Edison, February 13th, 1885
https://edisondigital.rutgers.edu/document/D8501B
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Title
[D8501B], Letter from Owen McKay to Thomas Alva Edison, February 13th, 1885
Editor's Notes
Rcd letter from you years ago that you were experimenting on a "microphone" to help those suffering from deafness. What progress have you made? Just learned of an "Electric Aurophone" for this purpose but have been deceived many times before. Pls reply to School of Practical Science, Toronto. Quotable TAE marg: "Tell him still at it actively. I need it as bad as anyone."
Author
Recipient
Date
1885-02-13
Type
Subject
Folder/Volume ID
D8501-F
Microfilm ID
77:6
Document ID
D8501B
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University