From:
Edward Sabine
To:
Sir John Herschel
Date:
15 April [1839?]
Source of text:
RS:HS 15.327
Summary:
Sends documents with earliest suggestion of Antarctic magnetic variation. Also sends letter from [A. T.] Kupffer. Materials received from [Adolphe] Quetelet, Prague, and Milan. All sent to [Humphrey] Lloyd.
Contributor:
John Herschel Project