[D8230ZCH], Letter from Francis Robbins Upton to Thomas Alva Edison, October 19th, 1882
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Title
[D8230ZCH], Letter from Francis Robbins Upton to Thomas Alva Edison, October 19th, 1882
Editor's Notes
"The blue on the lamp always appears at the positive pole. The blackening of the wire always occurs at the negative pole. Lawson will test black substance."
Author
Recipient
Date
1882-10-19
Type
Folder/Volume ID
D8230-F
Microfilm ID
61:835
Document ID
D8230ZCH
Publisher
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University