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Showing 21–40 of 45 items

Herschel5146

From:
Charles Babbage
To:
Sir John Herschel
Date:
[24 July 1818]
Source of text:
RS:HS 2.95
Summary:

Wishes to leave town and spend a few weeks in Torquay. Would JH join him? Has new theorem on functions.

Contributor:
John Herschel Project

Herschel1591

From:
Johann Dietrich Herschel
To:
Sir John Herschel
Date:
[9 August 1818]
Source of text:
TxU:H/M-0885
Summary:

Comments on a number of family matters and discusses the activities of some mutual acquaintances.

Contributor:
John Herschel Project

Herschel13188

From:
Sir John Herschel
To:
William Whewell
Date:
[12 August 1818]
Source of text:
TxU:H/L-0496; Reel 1055
Summary:

Grateful for WW's comments on investigations of [Simon] Stevin. JH's work on polarization of light. Discovery of multiple axes of polarization was preempted by David Brewster. Diagrams polarization of niter crystals and Iceland spar.

Contributor:
John Herschel Project

Herschel9954

From:
James Grahame
To:
Sir John Herschel
Date:
[18 August 1818]
Source of text:
RS:HS 8.289
Summary:

JG's wife died, and he has been sick in body and spirit.

Contributor:
John Herschel Project

Herschel9039

From:
Sir John Herschel
To:
William Whewell
Date:
[19 August 1818]
Source of text:
TC, Camb. Add. Ms.a.2074 (C: RS:HS 20.56)
Summary:

Thanks WW for and expresses agreement with WW's analysis of Simon Stevin. Describes experiments JH is conducting on the polarization of light.

Contributor:
John Herschel Project

Herschel5147

From:
Charles Babbage
To:
Sir John Herschel
Date:
[13 October 1818]
Source of text:
RS:HS 2.96
Summary:

Gives some analytical equations for his comments.

Contributor:
John Herschel Project

Herschel9040

From:
William Whewell
To:
Sir John Herschel
Date:
[1 November 1818]
Source of text:
RS:HS 18.160
Summary:

Expresses thanks for and comments on JH's account of JH's optical experiments. Discusses efforts to improve mathematical education at Cambridge, including WW's book on mechanics.

Contributor:
John Herschel Project

Herschel9955

From:
James Grahame
To:
Sir John Herschel
Date:
[5 November 1818]
Source of text:
RS:HS 8.290
Summary:

About letter writing, and the joy JG receives from his children.

Contributor:
John Herschel Project

Herschel12627

From:
Sir John Herschel
To:
Charles Babbage
Date:
[9 November 1818]
Source of text:
RS:HS 2.97 (C: RS:HS 20.57 & TxU:H/L-0051.1; Reel 1054 inc)
Summary:

Welcome back to London. Explain CB's demonstration of 'theorem in transcendental arithmetic.' JH's observations of 'new acid' [hyposulfurous] and optical phenomena in 'chrystals of nitre.'

Contributor:
John Herschel Project

Herschel5148

From:
Charles Babbage
To:
Sir John Herschel
Date:
[10 November 1818]
Source of text:
RS:HS 2.98
Summary:

Wants his support for his own application for a post on the Board of Longitude.

Contributor:
John Herschel Project

Herschel10236

From:
Bertie Greatheed
To:
Sir John Herschel
Date:
[19 November 1818]
Source of text:
RS:HS 9.123
Summary:

Has seen William Artaud, who will be pleased to paint William Herschel's picture. Will undertake it in the new year as he is rather pressed for time at the moment. Hears that J. C. Ross and W. E. Parry have returned from the North.

Contributor:
John Herschel Project

Herschel9956

From:
James Grahame
To:
Sir John Herschel
Date:
[20 November 1818]
Source of text:
RS:HS 8.291
Summary:

Coming to terms with the death of his wife and with his new life [letter completed 1818-12-8].

Contributor:
John Herschel Project

Herschel5760

From:
Sir John Herschel
To:
David Brewster
Date:
[20 November 1818]
Source of text:
RS:HS 20.58
Summary:

Further about additional mathematical articles for the Edinburgh Encyclopaedia; comments on DB's intention to start a new 'superior' science journal.

Contributor:
John Herschel Project

Herschel5149

From:
Charles Babbage
To:
Sir John Herschel
Date:
[26 November 1818]
Source of text:
RS:HS 2.99
Summary:

When he comes up to town would he please bring Biot's work. Wants to show JH a paper on series. Has just had a visit from Edward Sabine, newly returned from Greenland.

Contributor:
John Herschel Project

Herschel5150

From:
Charles Babbage
To:
Sir John Herschel
Date:
[1 December 1818]
Source of text:
RS:HS 2.100
Summary:

Astronomer Royal's post at Greenwich vacant; hopes JH will try for it. Has not been successful in getting on the Board of Longitude. Hopes to spend a fortnight in Paris after Christmas.

Contributor:
John Herschel Project

Herschel12628

From:
Sir John Herschel
To:
Charles Babbage
Date:
[2 December 1818]
Source of text:
TxU:H/L-0051.2; Reel 1054
Summary:

Cannot meet CB in London this week. Has verified composition of [hyposulfurous] acid. Encloses crystal of 'sulpho=sulphite of lime.'

Contributor:
John Herschel Project

Herschel5151

From:
Sir John Herschel
To:
Charles Babbage
Date:
[2 December 1818]
Source of text:
RS:HS 2.101 (C: RS:HS 20.59)
Summary:

Thanks CB for his advice about applying for the post of Astronomer Royal when it becomes vacant, but does not think himself qualified. Will not be able to come to London this weekend. Regarding his new acid.

Contributor:
John Herschel Project

Herschel5152

From:
Charles Babbage
To:
Sir John Herschel
Date:
[4 December 1818]
Source of text:
RS:HS 2.102
Summary:

Urges JH to apply for the Greenwich post. Quotes extract from Thomas Thomson on chemistry. Gives equations for his comments. Has found a new method of producing household gas.

Contributor:
John Herschel Project

Herschel12629

From:
Sir John Herschel
To:
Charles Babbage
Date:
[6 December 1818]
Source of text:
TxU:H/L-0051.3; Reel 1054
Summary:

Fifth [1817] edition of Thomas Thomson's System of Chemistry shows previous discovery of JH's 'new acid,' but its reported composition is wrong.

Contributor:
John Herschel Project

Herschel5153

From:
Sir John Herschel
To:
Charles Babbage
Date:
[6 December 1818]
Source of text:
RS:HS 2.103 (C: RS:HS 20.60)
Summary:

Thanking CB for CB's further remarks on the Greenwich post. Further regarding his new acid.

Contributor:
John Herschel Project
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