Search: Herschel, John in author 
John Herschel Project in contributor 
Herschel, John in correspondent 
1820-1829::1825 in date 
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From:
Sir John Herschel
To:
Edward Sabine
Date:
[21 April 1825]
Source of text:
RS:HS 15.8 (C: RS:HS 20.208)
Summary:

Invites ES to join him and other scientists for dinner. Requests that ES prepare a detailed description and justification of his proposed Teneriffe experiments for consideration by the R.S.L. Council.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[6 May 1825]
Source of text:
RS:HS 20.210
Summary:

Read your proposal on experiments at Teneriffe to the R.S.L. Council, which declined to make 'an especial recommendation' in support of them to the government.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[20 June 1825]
Source of text:
RS:HS 15.9 (C: RS 20.215)
Summary:

Six artillery men have been placed under ES's command. Encloses letters from Charles Bonne. Asks ES to oversee the arrival of 180 rockets to be used at Wrotham and Fairlight. Proposes that ES test whether a light at Wrotham can be seen at Fairlight in which case gunpowder will be used instead of rockets. Sets date for ES to meet Bonne in Hornoy. Urges ES to record his expenses for the Board of Longitude.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[31 May 1825]
Source of text:
RS:HS 20.213
Summary:

Acknowledges receipt of WS's second volume of observations and the new telescope's results. Mentions Caroline Herschel's catalogue of nebulae.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[24 January 1825]
Source of text:
RS:HS 17.106a (C: RS:HS 20.196)
Summary:

Asks WS for account of the performance of his new [Josef] Fraunhofer telescope. Corroborates WS's double star motion data, except for 70 Ophiuchi, where JH and [James] South find no motion. Asks for observational targets and urges care in WS's observational technique. Mentions WS's intention to undertake celestial zone with [F. W.] Bessel. Describes [Henry] Kater's 'floating collimator.'

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[1825-7]
Source of text:
RS Sa.680
Summary:

Encloses note about transportation of rockets, telescope, and chronometer, with suggested schedule for experiments.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[19 June 1825]
Source of text:
RS Sa.644
Summary:

Encloses R. Bonne's letter and gives further instructions regarding rockets for experiment.

Contributor:
John Herschel Project
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
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
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
From:
Sir John Herschel
To:
Giovanni B. Amici
Date:
[14 January 1825]
Source of text:
RS:HS 1.334 & 20.194
Summary:

Thanking him for his friendly reception when in Italy. Is sending GA journals and pamphlets likely to be of interest to him. Regarding various papers on the electrization of mercury. Please send details of Giuseppe Bianchi's barometer.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[1825?]
Source of text:
RS:HS 2.366
Summary:

Is sorry he will be unable to see him. Is sending copies of their paper for distribution.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
David Brewster
Date:
[28 November 1825]
Source of text:
RS:HS 4.258 & 20.225
Summary:

Has received copies of reprints from Lyell. Points out errors in a printed paper of his. Has been unwell and very busy of late. Would like to add DB's name to the Optical Glass Committee.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Niccolo Cacciatore
Date:
[31 January 1825]
Source of text:
RS:HS 5.134
Summary:

News since he left Palermo. Comments on the pamphlet NC recently sent him. Has to inform him that he has been elected an Associate of the Astronomical Society.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Wallace
Date:
23] March [1825
Source of text:
RS:HS 20.203
Summary:

Let Josef Fraunhofer make WW's whole transit instrument, and mural circle as well. Attests to Fraunhofer's artistry. Germans will soon leave no stars to discover. Wishes someone would import G. F. Reichenbach's meridian circle and use it on F. W. Bessel's plan. Suggests WW order clocks from [Robert] Molyneux or [William] Hardy.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Wallace
Date:
[12 December 1825]
Source of text:
RS:HS 20.226
Summary:

Edinburgh Institution's decision to order instruments from Josef Fraunhofer should send message to 'dilatory and ... abominably expensive' English artists. Axis of Fraunhofer's 8-foot transit instrument is too long. Compares those of Cambridge, Greenwich, Paris, and James South. [Robert] Woodhouse's paper in 1825 R.S.P.T. eliminated JH's hope that Cambridge would devote time to general catalogue.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Young
Date:
[19 June 1825]
Source of text:
RS:HS 18.332 (C: 20.214)
Summary:

Edward Sabine declares that R.S.L. is hostile to ES's interests. If ES makes future claim for compensation, JH wants TY's opinion in writing. Need to order four night glasses for Fairlight Station. Encloses letter from [Richard] Copeland.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Young
Date:
[8 November 1825]
Source of text:
RS:HS 18.335b (C, encl 1p: 20.223)
Summary:

Encloses note from Sir John Barrow refusing scientific instruments and objecting to using barometers. Supplying cameras and sextants to Admiralty's marine survey is not interference by Board of Longitude. Sent JH's expenses to Edward Sabine; has no further word on subject. Encloses Mr. Stewart's note about damages at Wrotham.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Josef von Fraunhofer
Date:
[27 January 1825]
Source of text:
RS:HS 19.5
Summary:

JF was elected associate of Astronomical Society. Will send Society's Transactions and JH's 'Absorption of Light.' W. H. F. Talbot delivered JF's 'Crown glass Prism.' JH presented J. G. Soldner's observations to Society and proposed Soldner as associate.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Henry Kater
Date:
16?] November [1825
Source of text:
RS:HS 19.50
Summary:

Thomas Young approved supplying [Richard] Copeland with two sextants and one mountain barometer.

Contributor:
John Herschel Project