Search: Herschel, John in correspondent 
Schumacher, Heinrich Christian in correspondent 
1830-1839::1839 in date 
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Herschel2891

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[19 January 1839]
Source of text:
RS:HS 15.382
Summary:

Forwards a request from C. F. Gauss for magnetic observations made in England.

Contributor:
John Herschel Project

Herschel1063

From:
Sir John Herschel
To:
Heinrich Christian Schumacher
Date:
[19 January 1839]
Source of text:
RS:HS 25.5.11
Summary:

Compares magnitudes for some specific stars and then comments more generally on that question; JH believes he will no longer be able to observe in winter in England as he is too severely afflicted by rheumatism.

Contributor:
John Herschel Project

Herschel8696

From:
Sir John Herschel
To:
Heinrich Christian Schumacher
Date:
[7 February 1839]
Source of text:
NSUB Cod.Ms.Gauss 110
Summary:

Sends HS's observations of magnetic declination and dip near London for forwarding to Carl F. Gauss. Encloses a letter from Edward Sabine.

Contributor:
John Herschel Project

Herschel2892

From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[12 February 1839]
Source of text:
RS:HS 15.383
Summary:

Asks permission to use information from JH's letter in Astronomische Nachrichten. Believes [Alexander von] Humboldt can explain observational anomalies that JH notes.

Contributor:
John Herschel Project
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