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Herschel, John in correspondent 
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From:
William Empson
To:
Sir John Herschel
Date:
17 January [1850?]
Source of text:
RS:HS 7.68
Summary:

Would be happy to hear of any improvement in JH's health. Encloses a letter from Francis Jeffrey (Lord Jeffrey). J. S. Mill edited Jeremy Bentham's works in two volumes.

Contributor:
John Herschel Project
From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[19 January 1850]
Source of text:
RS:HS 10.69
Summary:

Queries regarding JH's star lists. Sending magnetic information from A. T. Kupffer. Regarding the distribution of nebulae.

Contributor:
John Herschel Project
From:
William Radcliffe Birt
To:
Sir John Herschel
Date:
[19 January 1850]
Source of text:
RS:HS 4.138
Summary:

Regarding the luminous rings recently observed in the solar system.

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[21 January 1850]
Source of text:
RS:HS 6.256
Summary:

Regarding the delicate case of priority of investigation. Quotes example of Henry Warburton and John Brinkley.

Contributor:
John Herschel Project
From:
Lord Francis Jeffrey
To:
Sir John Herschel
Date:
[21 January 1850]
Source of text:
RS:HS 19.279
Summary:

Returns 'slips' with JH's corrections. Asks explanation of probability theory.

Contributor:
John Herschel Project
From:
Sir Edward Ryan
To:
Sir John Herschel
Date:
[21 January 1850]
Source of text:
RS:HS 14.458
Summary:

Has no information to send yet. JH should not be too hopeful of changing the appoint to Bengal of his son [William James].

Contributor:
John Herschel Project
From:
William Empson
To:
Sir John Herschel
Date:
23 January [1850?]
Source of text:
RS:HS 7.69
Summary:

Returns the slips received from Francis Jeffrey (Lord Jeffrey); would JH forward them to the printer with his instructions. His mathematical demonstration will be allowed enough room. Pleased to hear his deafness has been relieved.

Contributor:
John Herschel Project
From:
Henry Anthony Jeffreys
To:
Sir John Herschel
Date:
[24 January 1850]
Source of text:
RS:HS 10.290
Summary:

Sends drawing and statement showing what they are about at the church. Would welcome any assistance from JH.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[24 January 1850]
Source of text:
RS:HS 23.81
Summary:

About Henry Warburton's theorem, and the Gregorian calendar.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Henry Anthony Jeffreys
Date:
[24 January 1850]
Source of text:
RS:HS 10.291 & 23.82
Summary:

Regrets he is unable to support his project for the church as he has many more worthy commitments.

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[25 January 1850]
Source of text:
RS:HS 6.257
Summary:

Further regarding the Gregorian calendar and comments on some of the questions involved in its interpretation.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
the Athenaeum
Date:
25] January [1850
Source of text:
Athenaeum, #1162 (Feb. 2, 1850), 132
Summary:

[Writing anonymously], offers a solution to a Latin problem discussed earlier in the Athenaeum.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
the Athenaeum
Date:
25] January [1850
Source of text:
Athenaeum, #1162 (Feb. 2, 1850), 132
Summary:

[Writing anonymously], asks a question about the public understanding of the Gregorian calendar.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Lord Francis Jeffrey
Date:
[26 January 1850]
Source of text:
unknown
Summary:

Explaining his own idea of probability. [This appears to be the original, which was never sent as Lord Jeffrey died 1850-1-25.]

Contributor:
John Herschel Project
From:
Henry Warburton
To:
Sir John Herschel
Date:
[28 January 1850]
Source of text:
RS:HS 18.52
Summary:

Thanks for citing (18 months ago) John Brinkley's paper on 'General Term.' Heard that Augustus De Morgan notified JH of deductions HW drew from Brinkley's theorems, extending them into permutations and combinations. Re-read JH's ['On the Development of Exponential Functions' (1816)]. Asks where to buy JH's Examples in Finite Differences [1820] for HW's great-nephew [Howard Elphinstone].

Contributor:
John Herschel Project
From:
William Empson
To:
Sir John Herschel
Date:
[28] January 1850
Source of text:
RS:HS 19.271
Summary:

Reports death of Francis Jeffrey. JH's letter to Jeffrey arrived too late. Mrs. Jeffrey will return to [Haileybury?] with WE.

Contributor:
John Herschel Project
From:
E. W. Payne
To:
Sir John Herschel
Date:
[29 January 1850]
Source of text:
RS:HS 14.147
Summary:

Asks questions relevant to a series of books presenting science for juveniles.

Contributor:
John Herschel Project
From:
Henry Warburton
To:
Sir John Herschel
Date:
[31 January 1850]
Source of text:
RS:HS 18.53
Summary:

Thanks for sending Examples in Finite Differences [1820] to WH's great-nephew Howard Elphinstone. John Brinkley's paper opened up new possibilities for permutations and combinations.

Contributor:
John Herschel Project
From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[4 February 1850]
Source of text:
RS:HS 6.258
Summary:

Would he drop him a few lines on the orbit of the meteor for the R.A.S. Robert Potts of Trinity is to publish by subscription a translation of Robert Simson's Porisms.

Contributor:
John Herschel Project
From:
John R. Hind
To:
Sir John Herschel
Date:
[4 February 1850]
Source of text:
RS:HS 9.347
Summary:

In looking through Lamont 1845-6 he found two observations of Neptune not previously recognized. Thanks for his memoir on the orbits of double stars.

Contributor:
John Herschel Project
Correspondent
Document type
Transcription available