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Herschel, John in correspondent 
1840-1849::1840::08 in date 
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From:
Sir John Herschel
To:
Robert Hunt
Date:
[17 August 1840]
Source of text:
RS:HS B26.68
Summary:

Thanks RH for a sample of Daguerreotype paper. Comments on some aspects of the action of 'thermic' rays and 'chemical' rays in photography.

Contributor:
John Herschel Project
Document type
Transcription available