From:
Sir John Herschel
To:
William Radcliffe Birt
Date:
[16 March 1841]
Source of text:
RS:HS 19.88
Summary:
Progress on barometer curves. Invites WB to send report, to be read at B.A.A.S. meeting in July.
Contributor:
John Herschel Project
Progress on barometer curves. Invites WB to send report, to be read at B.A.A.S. meeting in July.
Praises WT for invention of 'Kalotype' process; predicts it will be called 'Talbotype.' Notes excellence for photography of the weather during past year. Mentions possibility of cases of excessively rapid photographic change.