[MBLB4329], Letter from Charles Batchelor to Francis Robbins Upton, August 23rd, 1882

https://edisondigital.rutgers.edu/document/MBLB4329

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Title

[MBLB4329], Letter from Charles Batchelor to Francis Robbins Upton, August 23rd, 1882

Editor's Notes

Gives results of photometric tests showing 3% variation: "do you have this difficulty?"

Date

1882-08-23

Decade

1880-1889

Type

Folder/Volume ID

MBLB4-F

Microfilm ID

93:699

Document ID

MBLB4329

Publisher

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