From:
Edward Sabine
To:
Sir John Herschel
Date:
[26 February 1858]
Source of text:
RS:HS 15.246
Summary:
Discusses ellipticity and results of [G. B.] Airy and [F. W.] Bessel. Also, [Alexander von] Humboldt's magnetic results.
Contributor:
John Herschel Project