From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[19 May 1841]
Source of text:
RS:HS 17.307
Summary:
Some details of improvements in the calotype method.
Contributor:
John Herschel Project
Showing 1–2 of 2 items
Some details of improvements in the calotype method.
Has been experimenting with paper prepared with light-sensitive vegetable juices. Sends two specimens of JH's results.