From:
Sir John Herschel
To:
Photographic News
Date:
[25 January 1868]
Source of text:
RS:HS 14.160
Summary:
Points out that [Joel?] Spiller's article, 'Hyposulphite of Ammonia for fixing,' is 'copied verbatim' from a work of JH's.
Contributor:
John Herschel Project