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Talbot, William Henry Fox in correspondent 
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1840-1849::1841::05 in date 
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From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[14 May 1841]
Source of text:
Science Museum Talbt 1/32
Summary:

Has been experimenting with paper prepared with light-sensitive vegetable juices. Sends two specimens of JH's results.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[19 May 1841]
Source of text:
RS:HS 17.307
Summary:

Some details of improvements in the calotype method.

Contributor:
John Herschel Project