[D8963AAS], Letter from Louis Glass, Pacific Phonograph Co to Thomas Alva Edison, June 8th, 1889
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Title
[D8963AAS], Letter from Louis Glass, Pacific Phonograph Co to Thomas Alva Edison, June 8th, 1889
Editor's Notes
"We have had applications from a number of Physicians for Phonographs to be used in recording the beating of the heart, pulsations of the blood, etc. ### Numerous newspaper items have appeared concerning these matters and these people desire to know whether in your tests you have found these things practicable: if so, whether special diaphragms are used and your manner of procedure. Please give me all the information you can for their benefit.### We also have an application from William Hamm Hall, who has charge of all the U.S. Irrigation Surveys west of the Rocky Mountains, for which Congress made a large appropriation last winter. He wishes one or more Phonographs made portable to be turned by hand or clockwork and placed withing as small a compass as possible. Will you consider applications of this kind? And if so, what will be the cost in addition to the regular rentals."
Recipient
Date
1889-06-08
Type
Folder/Volume ID
D8963-F
Microfilm ID
128:65
Document ID
D8963AAS
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University