Search: Herschel, John in author 
1820-1829::1825 in date 
Herschel, Caroline Lucretia in addressee 
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Herschel4050

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[18 April 1825]
Source of text:
TxU:H/L-0570.1; Reel 1058
Summary:

Studied 659 double stars; JH is confident that his work proves his father's conclusions. Now plans to study nebulae.

Contributor:
John Herschel Project

Herschel4049

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
1825-[8 or later]
Source of text:
TxU:H/L-0570.2.a; Reel 1058
Summary:

Informs CH of his gold medal from the French Academy of Sciences for JH's and James South's paper on double stars. Finds CH's catalogue of nebulae in zones very useful. Heard about Johann Pfaff's death. James Grahame may be moving to Göttingen.

Contributor:
John Herschel Project

Herschel4048

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[30 December 1825]
Source of text:
TxU:H/L-0570.3; Reel 1058
Summary:

Recovering from a prolonged illness. Discusses parallax. JH reports that he now is very skilled at sweeping with the 20-ft reflecting telescope.

Contributor:
John Herschel Project
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