[D7903ZKS], Letter from James West Roosevelt to Thomas Alva Edison, November 14th, 1879

https://edisondigital.rutgers.edu/document/D7903ZKS

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Title

[D7903ZKS], Letter from James West Roosevelt to Thomas Alva Edison, November 14th, 1879

Editor's Notes

Microphone and Bell teleph used in unsuccessful expts on human heartbeat; would like to try TAE carbon transmitter & emg receiver. Marg: can borrow but don't think motograph suited for this.

Date

1879-11-14

Decade

1870-1879

Type

Folder/Volume ID

D7903-F

Microfilm ID

49:502

Document ID

D7903ZKS

Publisher

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