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From:
Sir John Herschel
To:
David Brewster
Date:
[3 February 1820]
Source of text:
RS:HS 20.84
Summary:

Clarifies areas of disagreement with DB in JH's explanation of the results of colored tints of light passing through polarizing crystals.

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[6 February 1820]
Source of text:
RS:HS 2.128
Summary:

Has had a letter from Davies Gilbert regarding the presidency of the Astronomical Society. Possible alternatives. Gives a problem of the law of chance.

Contributor:
John Herschel Project
From:
David Brewster
To:
Sir John Herschel
Date:
[11 February 1820]
Source of text:
RS:HS 4.251
Summary:

Thanks for the extract of his paper. Comments on this and his own discoveries on the polarization of light. His fees for the articles will pay his subscription to the Royal Society of Edinburgh.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Wilson Lowry
Date:
[12 February 1820]
Source of text:
St. John's College, Cambridge
Summary:

Asks where WL procured a certain 'large crystal of Fish-eye-Stone.'

Contributor:
John Herschel Project
Text Online
From:
Michael Faraday
To:
Richard Phillips
Date:
15 February 1820
Source of text:
APS MS 509 L56.18
Summary:

No summary available.

Contributor:
Faraday Project
From:
Sir William Watson
To:
Sir John Herschel
Date:
[15 February 1820]
Source of text:
RS:HS 18.115
Summary:

Relieved that news of death of King [George III] did not weaken William Herschel. Will see JH and Lady Mary Pitt Herschel in Bath in April. Lady Watson and Miss Joy are not well.

Contributor:
John Herschel Project
From:
Wilson Lowry
To:
Sir John Herschel
Date:
16] February [1820
Source of text:
RS:HS 11.491
Summary:

Finds that the crystal of 'Fish-eye-stone' came from Sweden and was attached to a mass of oxydulous iron. Hopes that JH receives this information in time for his paper.

Contributor:
John Herschel Project
From:
George Peacock
To:
Sir John Herschel
Date:
[17 February 1820]
Source of text:
RS:HS 13.267
Summary:

Business matters relating to the R.S.L. and the Astronomical Society.

Contributor:
John Herschel Project
From:
Thomas Young
To:
Sir John Herschel
Date:
[1820 or 1825]-2-18
Source of text:
RS:HS 18.351
Summary:

Gives diagram and explanation of TY's reduced parallax. JH's formula is elaborate but complicated. TY's formula is less exact but easier for public to use. Welcomes criticism.

Contributor:
John Herschel Project
From:
Fearon Fallows
To:
Sir John Herschel
Date:
19 February [1820]
Source of text:
RS:HS 7.156
Summary:

Pleased to hear of his election to the Astronomical Society. No further news of the projected observatory at Cambridge. Has JH any news of the Observatory to be erected at the Cape? Would JH add his name to his certificate for the R.S.L. Is he interested in the Plumian Professorship?

Contributor:
John Herschel Project
From:
Francis Baily
To:
Sir John Herschel
Date:
[22 February 1820]
Source of text:
RS:HS 3.36
Summary:

Has sent the Address to the printers for the corrections to be made. Committee meeting on Tuesday next. Hopes JH can come.

Contributor:
John Herschel Project
From:
Adam Sedgwick
To:
Sir John Herschel
Date:
[26 February 1820]
Source of text:
RS:HS 15.418
Summary:

Thanks JH for communication to the [Cambridge Philosophical] Society. States the reactions of Cambridge faculty to the society. Gives dates for next meetings.

Contributor:
John Herschel Project
From:
Francis Baily
To:
Sir John Herschel
Date:
[11 March 1820]
Source of text:
RS:HS 3.37
Summary:

Is sending the books. News of the Committee meeting. Relations of the Astronomical Society with Sir Joseph Banks and the R.S.L.

Contributor:
John Herschel Project
From:
Charles Babbage
To:
Sir John Herschel
Date:
[18 March 1820]
Source of text:
RS:HS 2.129
Summary:

Was unable to attend council meeting of the Astronomical Society. Difficulties over the choosing of a president. Regarding the affairs of Sir Joseph Banks.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Charles Babbage
Date:
[19 March 1820]
Source of text:
RS:HS 2.130 (C: RS:HS 20.85)
Summary:

Was unable to attend the meeting of the Astronomical Society Council. Has heard the news regarding the president. Gives a problem of chance. Regarding the printing of the supplement.

Contributor:
John Herschel Project
From:
Adam Sedgwick
To:
Sir John Herschel
Date:
20 March [1820]
Source of text:
RS:HS 15.419
Summary:

States that the [Cambridge Philosophical Society] meeting went well. Charges against council were proven unfounded with the help of a letter from [Webster?]. James Cumming has been experimenting with magneticogalvanic phenomena.

Contributor:
John Herschel Project
From:
James Wood
To:
Sir John Herschel
Date:
[20 March 1820]
Source of text:
RS:HS 18.291
Summary:

Please write [H. J. Temple, Viscount] Palmerston on behalf of Fearon Fallows, candidate for director of future observatory at Cape of Good Hope.

Contributor:
John Herschel Project
From:
Agnes Baillie
To:
Sir John Herschel
Date:
[26 March 1820]
Source of text:
RS:HS 3.7
Summary:

Invitation to dine with them; Sir Walter Scott is expected as well.

Contributor:
John Herschel Project
Text Online
From:
Claude-Julien Bredin
To:
André-Marie Ampère
Date:
28 mars 1820
Source of text:
Lettres inédites de Claude-Julien Bredin (Lyon: 1936), p. 123-124.
Summary:

No summary available.

Contributor:
La Correspondance d’André-Marie Ampère
From:
Charles Babbage
To:
Sir John Herschel
Date:
[30 March 1820]
Source of text:
RS:HS 2.131
Summary:

Regarding his stove for his experiments. Problem with crystals. Printing of his book in Paris.

Contributor:
John Herschel Project