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Herschel1336

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[27 February 1839]
Source of text:
RS:HS 17.286
Summary:

Wishes to communicate to J. B. Biot, and so to Academie des sciences, JH's two 'beautiful' fixing methods, by hyposulfite and ferrocyanate.

Contributor:
John Herschel Project

Herschel55

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[27 February 1839]
Source of text:
RGO 6.368.620
Summary:

Thanks GA for all his efforts on Thomas Maclear's behalf [see GA's 1839-2-25]; comments on some developments in photography, including the work of Nicephore Niepce done in approximately 1826.

Contributor:
John Herschel Project
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