Url
	https://edisondigital.rutgers.edu/document/D7801B3E
Resource class
	dctype:Text
Title
	[D7801B3E], Letter from J F Hummel to Thomas Alva Edison, May 22nd, 1878
Creator
	Hummel, J F
Subject
	Microphone and other acoustic devices
	Cylinder phonograph
Publisher
	Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Date
	1878-05-22
Type
	Letter
Identifier
	D7801B3E
Source
	15:85
Rights
	Thomas Edison National Historical Park
Date Created
	1878-05-22
Has Version
	https://archive.org/details/edisonmicrofilm15/page/n93/mode/1up Archive.org Viewer, Microfilm Series Reel 15
Is Part Of
	D7801-F
Recipient
	Edison, Thomas Alva
Uri
	https://edisondigital.rutgers.edu/document/D7801B3E https://edisondigital.rutgers.edu/document/D7801B3E

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