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

Item

Abstract

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

Identifier

D7802ZQA

Folder Set

D7802

Title

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

Microfilm ID

15:834

Publisher

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