From:
Edward Sabine
To:
Sir John Herschel
Date:
[20 September 1844]
Source of text:
TxU:H/M-0520.14; Reel 1093
Summary:
Received letter from J. H. Lefroy in Athabasca [Canada]. Extract of C. J. B. Riddell's winter magnetic operations and summer plans along Red River.
Contributor:
John Herschel Project