Search: Talbot, William Henry Fox in correspondent 
1830-1839::1839::03::15 in date 
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From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[15 March 1839]
Source of text:
RS:HS 17.288
Summary:

Further chemicals used for fixing, including bromide potash.

Contributor:
John Herschel Project