From:
Edward Sabine
To:
Sir John Herschel
Date:
[1841?]
Source of text:
RS:HS 15.300
Summary:
Sends letter from [A. T.] Kupffer regarding magnetic observations. Discusses Great Toronto Disturbance of 18 November and observation of it at Greenwich, St. Helena, and St. Petersburg.
Contributor:
John Herschel Project