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1830-1839::1830 in date 
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Text Online
From:
Sir John Herschel
To:
Mary Somerville
Date:
[31 March 1830]
Source of text:
RS:HS 16.334 (C: RS:HS 21.66)
Summary:

Says manuscript [Mechanism of the Heavens] cannot be improved materially except perhaps on one or two small points. Will look at it again when it is together in a whole. Announces birth of JH's daughter [Caroline] that morning.

Contributor:
John Herschel Project, Brigitte Stenhouse
Text Online
From:
Sir John Herschel
To:
Mary Somerville
Date:
[15 June 1830]
Source of text:
RS:HS 16.337 (C: RS:HS 21.71)
Summary:

Will bring her manuscript [Mechanism of the Heavens]. Apologizes for holding it so long. Critiques various passages concerning permanent rotation and equations of stability. Sends condolences on Dr. Somerville's loss.

Contributor:
John Herschel Project, Brigitte Stenhouse
From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[10 April 1830]
Source of text:
RS:HS 21.68
Summary:

Glad WS is coming to England but cautions that London empties in June. Congratulates WS on measurement of a 'great Northern arc.' Complains about the division of the Royal Society into 'parties'. Adds [James] South's results showing a sixth star, nearer than WS's fifth, in trapezium of Orion.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Adolphe Quetelet
Date:
[10 May 1830]
Source of text:
Académie belgique: #2 (fragment (French) Académie belgique: #3)
Summary:

Tells AQ of 'negligent inattention' regarding Belgium's instruments. Has extracted promise from [William?] Simms that the equatorial should be finished by Christmas and mural circle within the following year. Mentions seeing Colonel Blake and [G. P.] Dandelin. Regrets [P. F.] Verhulst's illness. Discusses lichen.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Davies Gilbert
Date:
[21 March 1830]
Source of text:
RS MC.1.211
Summary:

On behalf of [J. F.] Encke, asks that Greenwich observations be given to library of Berlin Observatory.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Richard Sheepshanks
Date:
[27 October 1830]
Source of text:
RS:HS 25.1.11
Summary:

Cannot attend meeting [concerning the Nautical Almanac]. Makes numerous specific recommendations concerning its format and contents. Raises the theoretical question 'Does sidereal time flow uniformly?'

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
[George Biddell Airy?]
Date:
[9 March 1830]
Source of text:
RS LUB.H.346
Summary:

Has received and comments on materials sent, including Nathaniel Bowditch's translation of P. S. Laplace's Mécanique céleste and a paper by J. W. Lubbock.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Peter Mark Roget
Date:
[22 December 1830]
Source of text:
RS DM.4.106 (ACCS: RS:HS B26.43)
Summary:

Will not be coming to either meeting [see James Hudson's 1830-12-18], because JH has fully expressed himself previously on the matter of Southern Hemisphere observations, and had already asked to be excused from further association with Glass Committee and any other connection with 'that subject.'

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[29 December 1830]
Source of text:
TCD 1493:68
Summary:

Regrets lack of time for WH's paper but has been occupied with nebulae and double stars. Finds it difficult to concentrate on one subject. Has proposed Edward Quin for Astronomical Society membership. Mentions [Francis] Beaufort's penchant for astronomy and the recent R.S.L. elections, as well as JH's wish to meet WH personally.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[10 July 1830]
Source of text:
TxU:H/L-0575.2.a; Reel 1058
Summary:

Been working on a new mirror for the 20-ft. telescope; very pleased with its performance. Asks CH to distribute his fourth catalog of double stars among the Prussian and German astronomers.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[19 May 1830]
Source of text:
TxU:H/L-0575.1; Reel 1058
Summary:

Reports on good health and behavior of JH's new daughter, Caroline Emilia Herschel. Comments on Greek music and on recent results of the R.S.L. Glass Committee.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
D. François J. Arago
Date:
[14 February 1830]
Source of text:
RS:HS 1.353 & 21.57
Summary:

Thanking him for his letter and announcement that he has been made a foreign correspondent of the Royal Academy of Sciences of France. [Also contains part of a letter to J. B. J. Fourier which is copied out fully in RS:HS.21.58.]

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[28 February 1830]
Source of text:
RS:HS 2.243
Summary:

Has heard the news about Government support for the machine; is this correct?

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
1830-3-[8 or later]
Source of text:
RS:HS 2.245
Summary:

Regarding CB's attitude to the machine. Is sending rough proof of the page on 'Sound.'

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[24 March 1830]
Source of text:
RS:HS 2.249 (C: RS:HS 2.250)
Summary:

Is sorry to note the tone of CB's last letter concerning his projected biography of Dr. Thomas Young, but he means to carry out his project. Edward Sabine received £1000 from the Board of Longitude.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[22 May 1830]
Source of text:
RS:HS 2.252 (ACCS: RS:HS 25.1.1)
Summary:

Has read his book on the decline of science and thinks that the book may do some good. Comments on various parts, and outlines things that could happen as the result. Has replied to Encke's letter about Ephemeris.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[10 August 1830]
Source of text:
RS:HS 2.254
Summary:

Will be very pleased to see him and hopes he will spend longer with him. Has just finished a new 20-foot mirror for his telescope. Regarding alterations in the Nautical Almanac.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[15 October 1830]
Source of text:
RS:HS 2.255 (ACCS: RS:HS 25.1.8)
Summary:

Has not seen the letter in the Herald about the possibility of himself standing for the presidency of the R.S.L. Raises six queries regarding manufactures and other scientific facts.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[26 November 1830]
Source of text:
RS:HS 2.257 (ACCS: RS:HS 25.1.12)
Summary:

His views on hearing that he has been nominated for the position of President of the R.S.L. Does not wish to become the president, but will do so if elected.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[9 December 1830]
Source of text:
RS:HS 2.258
Summary:

Would he please send back the proofs he sent the other day as the printers have requested their return. Regarding affairs at the R.S.L. Has he heard from the Treasury?

Contributor:
John Herschel Project