[D7905Z], Letter from E J Blair to Thomas Alva Edison, December 9th, 1879
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Title
[D7905Z], Letter from E J Blair to Thomas Alva Edison, December 9th, 1879
Editor's Notes
Try using mica instead of platinum to overcome expansion problems in light. Marg: "I cannot conceive how mica could be used. Its properties are just the opposite of the required ones."
Author
Recipient
Date
1879-12-09
Type
Folder/Volume ID
D7905-F
Microfilm ID
49:644
Document ID
D7905Z
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University