Search: Herschel, John in correspondent 
Schumacher, Heinrich Christian in correspondent 
1850-1859 in date 
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From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[15 February 1850]
Source of text:
RS:HS 15.406
Summary:

[A. C.] Petersen [?] claims to have found a new comet near JH's nebula #379. Look for it, but do not announce this discovery.

Contributor:
John Herschel Project
From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[16 April 1850]
Source of text:
RS:HS 15.407
Summary:

Asks JH to accept sunspot observations made over 14 years by the late [J. W.] Pastorff of Altona Observatory. Accompanying micrometrical measurements are worthless due to mounting of telescope.

Contributor:
John Herschel Project
From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[26 April 1850]
Source of text:
RS:HS 15.408
Summary:

Sends [J. W.] Pastorff's solar observations [see HS's 1850-4-16] as JH's own property.

Contributor:
John Herschel Project
From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[28 May 1850]
Source of text:
RS:HS 15.409
Summary:

Reports that [Annibal] de Gasparis has discovered a new asteroid, Parthenope. Gasparis credits JH with the discovery because JH had proposed the name Parthenope when AG had discovered Hygeia.

Contributor:
John Herschel Project
From:
Heinrich Christian Schumacher
To:
Sir John Herschel
Date:
[2 August 1850]
Source of text:
RS:HS 15.410 (C: TxU:H/M-1031.2; Reel 1083)
Summary:

Alexander von Humboldt requests that JH answer questions about 'coal sacks (plur.)' [Coal Sack of the Southern heavens].

Contributor:
John Herschel Project