[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.
Author
Recipient
Mentioned
Date
1879-11-14
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