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Herschel5128

From:
Sir John Herschel
To:
Charles Babbage
Date:
[31 March 1817]
Source of text:
RS:HS 2.77 (C: RS:HS 20.40)
Summary:

Will go down to Cambridge to vote for William Clarke. Equation problem. Enquiry regarding paper on factorials by [Peter] Nic[h]olson. Regarding errors made by Clarke in his papers.

Contributor:
John Herschel Project

Herschel5129

From:
Sir John Herschel
To:
Charles Babbage
Date:
[3 April 1817]
Source of text:
RS:HS 2.78 (C: RS:HS 20.41)
Summary:

Is sending CB all his letters dealing with functional equations. Comments on E. F. Bromhead's paper. Taylor's theorem. Is getting on well with his essay on exponential functions.

Contributor:
John Herschel Project

Herschel5130

From:
Sir John Herschel
To:
Charles Babbage
Date:
[16 April 1817]
Source of text:
RS:HS 2.79 (C: RS:HS 20.42)
Summary:

Is returning E. F. Bromhead's paper. Matters are arising from this paper. Encloses one of his own dealing with the notation of functions. When should he set off to Cambridge to vote for William Clarke?

Contributor:
John Herschel Project

Herschel5131

From:
Charles Babbage
To:
Sir John Herschel
Date:
[12 May 1817]
Source of text:
RS:HS 2.80
Summary:

Has been to Cambridge. Regarding JH's paper dealing with notation. Has been working on his history of functions.

Contributor:
John Herschel Project

Herschel5132

From:
Sir John Herschel
To:
Charles Babbage
Date:
[15 May 1817]
Source of text:
RS:HS 2.81 (C: RS:HS 20.43)
Summary:

Will see him in London. Is getting on with his supplement. Has seen CB's latest paper in the R.S.P.T. Regarding Mr. Hirsch's theories on equations.

Contributor:
John Herschel Project

Herschel5133

From:
Charles Babbage
To:
Sir John Herschel
Date:
[28 May 1817]
Source of text:
RS:HS 2.82
Summary:

Come on Friday to meet E. F. Bromhead and discuss notation.

Contributor:
John Herschel Project

Herschel5134

From:
Sir John Herschel
To:
Charles Babbage
Date:
[1 August 1817]
Source of text:
RS:HS 2.83 (C: RS:HS 20.47)
Summary:

Has been trying his hand at functions; quotes some. Hopes to visit him at Torquay. Push on with the supplement.

Contributor:
John Herschel Project

Herschel5135

From:
Charles Babbage
To:
Sir John Herschel
Date:
[6 August 1817]
Source of text:
RS:HS 2.84
Summary:

Is glad to hear he will be visiting Torquay. Regarding mathematical functions.

Contributor:
John Herschel Project

Herschel5136

From:
Charles Babbage
To:
Sir John Herschel
Date:
1817-8-18 or later
Source of text:
RS:HS 2.85
Summary:

Regarding the calculus of derivations.

Contributor:
John Herschel Project

Herschel5137

From:
Sir John Herschel
To:
Charles Babbage
Date:
[3 October 1817]
Source of text:
RS:HS 2.86 (C: RS:HS 20.49)
Summary:

Regarding his projected supplement. Calculus of deviations. Naming of periodical functions. [John?] Spence's manuscript.

Contributor:
John Herschel Project

Herschel5138

From:
Charles Babbage
To:
Sir John Herschel
Date:
[22 October 1817]
Source of text:
RS:HS 2.87
Summary:

Hopes to visit him in a few days. Regarding the calculus of derivations. Periodic functions. Is taking up mineralogy.

Contributor:
John Herschel Project

Herschel5139

From:
Charles Babbage
To:
Sir John Herschel
Date:
[11 November 1817]
Source of text:
RS:HS 2.88
Summary:

Regarding mathematical examples for their forthcoming book. Is taking up chemistry again. Comments on a paper dealing with functional equations by W. G. Horner.

Contributor:
John Herschel Project

Herschel5140

From:
Sir John Herschel
To:
Charles Babbage
Date:
[24 November 1817]
Source of text:
RS:HS 2.89 (C: RS:HS 20.51)
Summary:

Regarding W. G. Horner's paper. Printing of their book. Is preparing a paper to submit to the R.S.L. on a mathematical subject. Will be in town shortly and will visit his laboratory. Has received more sheets of [John?] Spence's essays.

Contributor:
John Herschel Project

Herschel5755

From:
David Brewster
To:
William Herschel
Date:
[11 June 1817]
Source of text:
RS:HS 4.241
Summary:

Would like WH's son, JH, to write some articles for his Edinburgh Encyclopaedia. Would he help him on an article entitled 'Stars'?

Contributor:
John Herschel Project

Herschel5756

From:
Sir John Herschel
To:
David Brewster
Date:
[19 June 1817]
Source of text:
RS:HS 20.45
Summary:

Agrees to write several articles on mathematics, and one on astronomy based on William Herschel's work.

Contributor:
John Herschel Project

Herschel5757

From:
David Brewster
To:
Sir John Herschel
Date:
[7 July 1817]
Source of text:
RS:HS 4.242
Summary:

Is pleased that he will write articles for his Edinburgh Encyclopaedia. Would like him to write one on 'Stars.'

Contributor:
John Herschel Project

Herschel5758

From:
Sir John Herschel
To:
David Brewster
Date:
[8 August 1817]
Source of text:
RS:HS 20.48
Summary:

Sends one mathematical article on isoperimetrical problems and asks to write the article on variations as well.

Contributor:
John Herschel Project

Herschel6491

From:
Edward Daniel Clarke
To:
Sir John Herschel
Date:
20] January [1817
Source of text:
RS:HS 5.257 (C: TxU:H/M-0143; Reel 1087)
Summary:

Regrets his blunder. Send him Wilson Lowry's address and he will write. His own recent experiments with platinum.

Contributor:
John Herschel Project

Herschel6492

From:
Edward Daniel Clarke
To:
Sir John Herschel
Date:
[12 March 1817]
Source of text:
RS:HS 5.258 (C: TxU:H/M-0144; Reel 1087)
Summary:

When his lectures have finished he will attend to JH's request regarding the inscription of Dr. G. H. Noehden. Hopes he will attend one of Sir Joseph Banks' Sunday evening gatherings and show the specimens he has given JH; also show them to W. H. Wollaston.

Contributor:
John Herschel Project

Herschel7773

From:
William Herschel
To:
Sir John Herschel
Date:
[26 May 1817]
Source of text:
RAS:WH Archive 1/11.4; Reel 12
Summary:

Schedules time in London next week to cast two mirrors for 20-foot telescope. Details of mixture to be used for mirrors. Questions about casting process. Tells JH to consult 'Messr. Devey' for answers. Plans to visit Greenwich soon. Hand tremor makes writing difficult. Received letter from [Ragreneau?] inviting Herschel family to breakfast tomorrow.

Contributor:
John Herschel Project
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