[D8963AAS], Letter from Louis Glass, Pacific Phonograph Co to Thomas Alva Edison, June 8th, 1889

Item

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Abstract

"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."

Date

1889-06-08

Decade

1880-1889

Type

Identifier

D8963AAS

Folder Set

D8963

Title

[D8963AAS], Letter from Louis Glass, Pacific Phonograph Co to Thomas Alva Edison, June 8th, 1889

Microfilm ID

128:65

Publisher

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