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Bessel, Friedrich Wilhelm in correspondent 
Herschel, John in addressee 
John Herschel Project in contributor 
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1830-1839 in date 
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From:
Friedrich Wilhelm Bessel
To:
Sir John Herschel
Date:
[4 July 1834]
Source of text:
RS:HS 4.69
Summary:

Wishes JH well at the Cape; describes some of his current observations.

Contributor:
John Herschel Project
From:
Friedrich Wilhelm Bessel
To:
Sir John Herschel
Date:
[5 June 1838]
Source of text:
RS:HS 4.70
Summary:

Welcomes JH back from Cape; includes results of FB's work on geodesical measurements in East Prussia.

Contributor:
John Herschel Project
From:
Friedrich Wilhelm Bessel
To:
Sir John Herschel
Date:
[9 October 1838]
Source of text:
RS:HS 4.71
Summary:

Announces the measurement of the annual parallax of 61 Cygni.

Contributor:
John Herschel Project
From:
Friedrich Wilhelm Bessel
To:
Sir John Herschel
Date:
[4 November 1838]
Source of text:
RS:HS 4.72
Summary:

Responds to concerns about effect of temperature on measurement of stellar parallax [see JH'S 1838-10-24]; comments on other observations.

Contributor:
John Herschel Project
From:
Friedrich Wilhelm Bessel
To:
Sir John Herschel
Date:
[26 June 1839]
Source of text:
RS:HS 4.73
Summary:

Sending JH some writings on geodesic measurements; reports the second measurement of annual parallax of 61 Cygni; comments on some other observations.

Contributor:
John Herschel Project