[D7802ZQA], Letter from Henry May to Thomas Alva Edison, June 24th, 1878

https://edisondigital.rutgers.edu/document/D7802ZQA

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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

Date

1878-06-24

Decade

1870-1879

Type

Folder/Volume ID

D7802-F

Microfilm ID

15:834

Document ID

D7802ZQA

Publisher

Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
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