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1820-1829::1828 in date 
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Herschel2110

From:
William Ritchie
To:
Sir John Herschel
Date:
[10 May 1828]
Source of text:
RS:HS 14.357
Summary:

Has not heard from America. Discusses paper on electric conduction. Wishes to move further south. Thanks JH for securing WR's election to R.S.L.

Contributor:
John Herschel Project

Herschel2111

From:
William Ritchie
To:
Sir John Herschel
Date:
[14 June 1828]
Source of text:
RS:HS 14.358
Summary:

[Edward] Sabine's letter confirmed WR's membership in R.S.L. Feel he was ill-used by Dollar Institution. Apologizes for trouble he caused JH.

Contributor:
John Herschel Project

Herschel2137

From:
Thomas Romney Robinson
To:
Sir John Herschel
Date:
[1828]
Source of text:
RS:HS 14.382
Summary:

Introduces [Dionysius] Lardner, who is a mathematician. Asks how [John] Brinkley's collimators succeeded.

Contributor:
John Herschel Project

Herschel2157

From:
Alexander Rogers
To:
Sir John Herschel
Date:
[26 February 1828]
Source of text:
RS:HS 14.402
Summary:

Sends copy of his account of the achromatic telescope because JH did not receive the original. Constructing an achromatic telescope of 5-foot focal length.

Contributor:
John Herschel Project

Herschel2158

From:
Alexander Rogers
To:
Sir John Herschel
Date:
[12 April 1828]
Source of text:
RS:HS 14.403
Summary:

Recently received telescope from the optician. Some adjustments are necessary. [Robert] Blair has a similar idea regarding telescopes. Asks JH to mention his idea to the Astronomical Society.

Contributor:
John Herschel Project

Herschel2159

From:
Alexander Rogers
To:
Sir John Herschel
Date:
[25 April 1828]
Source of text:
RS:HS 14.404
Summary:

Gives permission to release his telescope proposal to others. Discusses the progress of the telescope. Considers modifying the arrangement of lenses.

Contributor:
John Herschel Project

Herschel2160

From:
Alexander Rogers
To:
Sir John Herschel
Date:
[18 July 1828]
Source of text:
RS:HS 14.405
Summary:

Asks JH to report how James South's telescope performs. There was a defect in the settings of the telescope. Hopes JH's method of eliminating chromatic aberration improves the microscope.

Contributor:
John Herschel Project

Herschel2161

From:
Alexander Rogers
To:
Sir John Herschel
Date:
[29 November 1828]
Source of text:
RS:HS 14.406
Summary:

Has received a letter from the Astronomical Society secretary. Worries AR may have offended JH and requests guidance. Describes performance of his telescope.

Contributor:
John Herschel Project

Herschel2205

From:
Sir Edward Ryan
To:
Sir John Herschel
Date:
[1 March 1828]
Source of text:
RS:HS 14.449
Summary:

Introduces botanist [Nathaniel] Wallich in letter. Any kindness shown him will be appreciated. Discusses some matters of geology.

Contributor:
John Herschel Project

Herschel2233

From:
Peter Mark Roget
To:
Sir John Herschel
Date:
[19 December 1828]
Source of text:
RS:HS 14.500
Summary:

Discovered a mistake in Mr. Perkins's paper published in the Annals of Philosophy. Perkins has not yet corrected the error, although he was requested to do so.

Contributor:
John Herschel Project

Herschel2868

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[6 July 1828]
Source of text:
RS:HS 21.13
Summary:

Sends WS JH's 'Light' published in the Encyclopaedia Metropolitana. Mentions recalibration of his magnitude measurements of small stars near other small ones. Comments on results in WS's paper concerning Saturn's ring. Confirms sighting of 'well defined, equable, planetary disk.'

Contributor:
John Herschel Project

Herschel3004

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[6 May 1828]
Source of text:
RS:HS 17.115
Summary:

Accepts JH's extension of Class I double stars. Comments on comparison of these and suggests comparison of respective scales might be mutually useful. Includes continuation of work on micrometer measurements of Saturn. Notices strange eccentricity of Saturn's rings. Is considering comparing his degree-measurements with Finland and Lapland.

Contributor:
John Herschel Project

Herschel3005

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[6 July 1828]
Source of text:
RS:HS 17.115b
Summary:

Lists contents of a letter sent on 1828-7-6. JH's Light and third catalogue of double stars sent. Details of nebulae included.

Contributor:
John Herschel Project

Herschel3043

From:
Adolphe Quetelet
To:
Sir John Herschel
Date:
1828-1 -24
Source of text:
RS:HS 14.198
Summary:

Translation of JH's article Light begun. Publisher is in Paris. Gives name of collaborator as [P. F.] Verhulst. Has heard of others translating JH's work. As director of Brussels observatory, AQ needs best works of astronomy. Would JH help?

Contributor:
John Herschel Project

Herschel3290

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[5 December 1828]
Source of text:
TCD 1493:30
Summary:

Acknowledges receipt of papers sent by WH for Astronomical Society and R.S.L. and will deliver them, but currently has not time to say more. Looks forward to enrollment of WH's name among members at next Astronomical Society meeting.

Contributor:
John Herschel Project

Herschel3513

From:
J. K. Eduard Schmidt
To:
Sir John Herschel
Date:
[16 July 1828]
Source of text:
RS:HS 17.176
Summary:

Requests permission to translate JH's work on light into German.

Contributor:
John Herschel Project

Herschel3552

From:
Sir John Herschel
To:
John Thomas Graves
Date:
[19 November 1828]
Source of text:
TCD 10047/30
Summary:

Has found JG's paper [on logarithms] and will give it to the R.S.L. President and Council.

Contributor:
John Herschel Project

Herschel3583

From:
Sir John Herschel
To:
William Rowan Hamilton
Date:
[25 May 1828]
Source of text:
TCD 1493:20
Summary:

Thanks for remainder of WH's essay on 'Systems of Rays.' Recalls error-ridden copy of JH's Light given to WH; sends correction. Wishes to propose WH for membership in Astronomical Society.

Contributor:
John Herschel Project

Herschel3638

From:
William Samuel Stratford
To:
Sir John Herschel
Date:
[10 December 1828]
Source of text:
RS:HS 17.82
Summary:

Thanks JH for award and dinner invitation given to him by Astronomical Society.

Contributor:
John Herschel Project

Herschel3751

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[9 December 1828]
Source of text:
TxU:H/L-0573.4; Reel 1058
Summary:

Acknowledges receipt of CH's diary. JH apologizes for mishandling one aspect of the awarding of the Astronomical Society's Gold Medal to CH.

Contributor:
John Herschel Project
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