From:
Edward Sabine
To:
Sir John Herschel
Date:
[25 January 1844]
Source of text:
RS:HS 15.156
Summary:
Sends actinometric returns and drawing of comet from Hobarton Magnetic Observatory. [John] Lefroy's expedition in U.S. and Canada is going well. Received the observations from Algiers.
Contributor:
John Herschel Project