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From:
Alfred Smee
To:
Sir John Herschel
Date:
[2 December 1842]
Source of text:
RS:HS 16.158
Summary:

About chemical solutions used in photography, and problems produced by impurities in photographic paper.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[2 December 1842]
Source of text:
George Eastman House, 11.17 (C: RS:HS 22.143)
Summary:

Sends RH a packet of photographs with a description of each type.

Contributor:
John Herschel Project