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1840-1849::1840::09::10 in date 
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Herschel2823

From:
Edward Sabine
To:
Sir John Herschel
Date:
[10 September 1840]
Source of text:
RS:HS 15.103
Summary:

Excited about brilliant aurora in Toronto and the possibility of comparing magnetic data from observatories in North America, Europe, and St. Helena.

Contributor:
John Herschel Project

Herschel2895

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[10 September 1840]
Source of text:
RS:HS 15.386
Summary:

Has been busy with geodetic work. Pulkowa instruments are excellent. [F. W.] Struve has sent zenith distances of Ursa Majores. [G. von] Reichenbach's death dealt blow to precision of Munich instruments.

Contributor:
John Herschel Project
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