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[D7931E], Letter from Hugh C Robertson to Thomas Alva Edison, August 5th, 1879

Title: [D7931E], Letter from Hugh C Robertson to Thomas Alva Edison, August 5th, 1879
Editor's Notes: Proposes using clay cylinder instead of tin foil. Marg: "Write & say that we are so busy on the E Light that do not expect to go on experimenting with phono for a year. Then will try his device & inform him of result="
Author: Robertson, Hugh C
Recipient: Edison, Thomas Alva
Date: 1879-08-05
Type: Letter
Subject: Ore exploration and mining; Cylinder phonograph
Folder ID: D7931-F
Microfilm ID: 51:676
Document ID: D7931E
URL: https://edisondigital.rutgers.edu/document/D7931E
Rights: Thomas Edison National Historical Park
Publisher: Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
License: CC0 1.0 Universal
Has Version: Archive.org Viewer, Microfilm Series Reel 51

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