[D7802ZQA], Letter from Henry May to Thomas Alva Edison, June 24th, 1878
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Title
[D7802ZQA], Letter from Henry May to Thomas Alva Edison, June 24th, 1878
Editor's Notes
methods for registering heartbeats; do you use the same current on the phonograph, can it be varied?
Author
Recipient
Date
1878-06-24
Type
Subject
Folder/Volume ID
D7802-F
Microfilm ID
15:834
Document ID
D7802ZQA
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University