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Herschel, John in correspondent 
Walbeck, Henrik Johan in correspondent 
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From:
Sir John Herschel
To:
Henrik Johan Walbeck
Date:
[26 February 1821]
Source of text:
RS:HS 18.10a (C: RS:HS 20.113)
Summary:

Reports to HW, director of the observatory at Åbo, on observations, made by a variety of British astronomers, of the solar eclipse of 7 September 1820.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Henrik Johan Walbeck
Date:
[22 April 1822]
Source of text:
RS:HS 18.10b & 19.13
Summary:

Sends first volume of Astronomical Society's Transactions and JH's paper on aberrations ['On the Aberrations of Compound Lenses.' 1821]. Asks for geodesical results at Ã…bo.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Henrik Johan Walbeck
Date:
[6 May 1820]
Source of text:
RS:HS 19.13
Summary:

Announces new Astronomical Society. Invites HW to become associate. Mentions planned observatory at Cape of Good Hope.

Contributor:
John Herschel Project
From:
Henrik Johan Walbeck
To:
Sir John Herschel
Date:
[30 July 1820]
Source of text:
RS:HS 18.8
Summary:

Reports recent eclipse observations around the world.

Contributor:
John Herschel Project
From:
Henrik Johan Walbeck
To:
Sir John Herschel
Date:
[1 January 1821]
Source of text:
unknown
Summary:

Further eclipse observations from around the world [see HW's 1820-7-30].

Contributor:
John Herschel Project
From:
Henrik Johan Walbeck
To:
Sir John Herschel
Date:
[2 August 1822]
Source of text:
RS:HS 18.11
Summary:

Received JH's letter [29 Apr. 1821] with 'Memoirs of Astronomical Society' and observations of recent solar eclipse. Has not published eclipse calculations. Convinced that moon's diameter is accurately determined. Latitudes, longitudes for sites in Finland. 1820-22 observations from Ã…bo. Design of new Ã…bo observatory. New instruments from Munich.

Contributor:
John Herschel Project