From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[29 March 1843]
Source of text:
RS:HS 17.315
Summary:
Suggests 'amphitype' as name for JH's process whereby same picture can go from negative to positive. Further comments on comet sighting, and on some improvements to Daguerreotype.
Contributor:
John Herschel Project