From:
Robert Hunt
To:
Sir John Herschel
Date:
[24 December 1842]
Source of text:
RS:HS 10.97
Summary:
Sends a few samples of plates made by the cyanotype process; they are poor because the sun has not been very strong of late. Comments on this process and wishes JH would make a few experiments with his more perfect apparatus. Inclined to agree with him about the mechanism of the eye.
Contributor:
John Herschel Project