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From:
Sir John Herschel
To:
Thomas W. Hornbuckle
Date:
13] October [1826
Source of text:
RS:HS 9.487 (C: RS:HS 20.238)
Summary:

Declines being considered for the Lucasian professorship at Cambridge, stating his convictions 'that I shall do more for science as an independent amateur than as a Professor of any particular branch or department of it.' Proposes Charles Babbage as candidate. [Also includes draft of letter to George Peacock requesting his support for Babbage.]

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[30 November 1836]
Source of text:
RS:HS 25.5.4
Summary:

Comments about AD's work in mathematical functions, and then refers to JH's reductions and other astronomical matters, including the need for reform of stellar nomenclature.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Joanna B. Horner
Date:
[15 May 1852]
Source of text:
RS:HS 9.490 & 23.122
Summary:

Regrets a week has elapsed before replying to her letter, but is pleased that Miss Mathilde Oersted had so high a regard for his speech concerning her illustrious father.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Leonard Horner
Date:
[2 June 1827]
Source of text:
RS:HS 9.492 & 20.254
Summary:

Outlining his scheme for election of candidates to a post [appears to be an astronomer for an observatory].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[11 February 1838]
Source of text:
RS:HS 25.5.10
Summary:

Pleased with the observations and astronomical literature JH received from FS; JH is packing up for the return to England; comments on causes of variations in stellar magnitude and several other astronomical topics.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Luke Howard
Date:
[16 June 1839]
Source of text:
RS:HS 10.1 & 22.16
Summary:

LH's meteorological circular register was laid before the Meteorological Committee, which considers it worthy of notice. Comments on this, and would like to discuss the matter further.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Luke Howard
Date:
[14 September 1846]
Source of text:
RS:HS 10.7 & 22.284
Summary:

Will distribute the prospectuses of LH's book as desired, but regrets he will be unable to subscribe for a copy himself as its price is too expensive for his means. Pleased to hear of his good health.

Contributor:
John Herschel Project
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
From:
Sir John Herschel
To:
Frederick Howlett
Date:
[23 November 1863]
Source of text:
RS:HS 24.23
Summary:

Response to some papers sent to R.A.S.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Frederick Howlett
Date:
[26 January 1864]
Source of text:
RS:HS 24.26
Summary:

On the observation of sun spots.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
John Lindley
Date:
[26 August 1839]
Source of text:
RS:HS 25.5.15
Summary:

In response to a request, JH provides such details as he can about atmospheric and ground temperatures at the Cape; JH goes on to describe how his flowers brought from the Cape are doing.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Frederick Howlett
Date:
[30 April 1864]
Source of text:
RS:HS 24.42
Summary:

More on the construction of a good optical eyepiece for solar observations [see FH's 1864-4-27].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Frederick Howlett
Date:
[29 April 1867]
Source of text:
RS:HS 10.18 & 24.194
Summary:

Would like FH to study a phenomenon that JH has noticed on the sun's disk and that has no connections with sun-spots.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Frederick Howlett
Date:
[5 May 1867]
Source of text:
RS:HS 24.198
Summary:

Proposes to travel to visit FH next day to observe the sun with him.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Frederick Howlett
Date:
[10 October 1868]
Source of text:
RS:HS 24.231
Summary:

Details about sunspot observations.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Frederick Howlett
Date:
[24 April 1870]
Source of text:
RS:HS 24.306
Summary:

Writes to compare notes on sunspot observations.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
[William Whewell]
Date:
[28 August 1839]
Source of text:
RS:HS 25.5.16
Summary:

Wishes to have mentioned to the Physical Section of the B.A.A.S. that JH has discovered that the extreme red rays [infra-red?] of the sun do not darken photographic paper, but tend to whiten it.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Frederick Howlett
Date:
[7 April 1871]
Source of text:
RS:HS 24.361
Summary:

Is at present too ill to involve himself in any calculations necessary for making a good optical eyepiece.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
[Mr. Smith?]
Date:
[5 September 1839]
Source of text:
RS:HS 25.5.17
Summary:

Is very insistent that JH receive clear title to Collingwood, with no encumbrances.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Sir William Huggins
Date:
[19 May 1866]
Source of text:
RS:HS 24.156
Summary:

Comments on new star reported by WH [see WH's 1866-5-18]; includes diagram of that portion of the sky.

Contributor:
John Herschel Project