Search: Herschel, John in addressee 
1850-1859::1856 in date 
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Showing 41–60 of 101 items

Herschel7879

From:
Henry Warburton
To:
Sir John Herschel
Date:
[25 May 1856]
Source of text:
RS:HS 18.83
Summary:

Sends law of coefficients, for developing summation theorem.

Contributor:
John Herschel Project

Herschel7757

From:
[F. Soring?]
To:
Sir John Herschel
Date:
[26 May 1856]
Source of text:
RAS:JH Archive 14/1.227 verso; Reel 10
Summary:

[Form letter] Offers to send Commercium epistolicum J. Collins et aliorum... (1856), by J. B. Biot and Francisque Lefort, a critical edition of works by mathematician John Collins.

Contributor:
John Herschel Project

Herschel7880

From:
Henry Warburton
To:
Sir John Herschel
Date:
[26 May 1856]
Source of text:
RS:HS 18.84
Summary:

Coefficients of differences of odd powers of zero observe same law as those of even powers. Example of table of coefficients of differences of 015. Table took 15 minutes to compute by HW's process of summation. Notes error in table for 012 sent earlier.

Contributor:
John Herschel Project

Herschel7883

From:
Henry Warburton
To:
Sir John Herschel
Date:
[30 May 1856]
Source of text:
RS:HS 18.86
Summary:

Glad for JH's renewed interest in mathematics. At 72, HW expects to do no more. Reviewed JH's letter of 14 May [1856]. Fears JH misunderstood meaning of symbol HW employed. Quotes explanation from HW's paper on self-repeating series.

Contributor:
John Herschel Project

Herschel7884

From:
Henry Warburton
To:
Sir John Herschel
Date:
[2 June 1856]
Source of text:
RS:HS 18.87
Summary:

Reflects on relations between differences of same power of zero. Reviews procedure developed for determining terms and law of coefficients. JH's critique expanded role for these, but HW disagrees with JH's latest comments.

Contributor:
John Herschel Project

Herschel4842

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[3 June 1856]
Source of text:
RS:HS 1.231
Summary:

Has procured an actinometer and would like details of the scale.

Contributor:
John Herschel Project

Herschel7047

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[4 June 1856]
Source of text:
RS:HS 6.283
Summary:

Would he answer some of his queries when he has leisure? Queries on the law of beats for unison sounds. Met JH's daughter on Monday, who gave a fair account of JH and his recent work.

Contributor:
John Herschel Project

Herschel7048

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[8 June 1856]
Source of text:
RS:HS 6.284
Summary:

Has long held the view that a pipe underneath the strings of a piano would increase the resonance. Had not conceived such an instrument as JH suggested. Why are 3rds and 6ths more agreeable to the ear than 4ths and 5ths?

Contributor:
John Herschel Project

Herschel2016

From:
Baden Powell
To:
Sir John Herschel
Date:
[14 June 1856]
Source of text:
RS:HS 14.48
Summary:

Regrets letter read the night before at the R.A.S. of JH's wish to resign and hopes JH's health allows him to come occasionally and be a nominal member. Discusses Piazzi Smyth's preparations for voyage to Teneriffe.

Contributor:
John Herschel Project

Herschel6328

From:
Hannah M. Bouvier
To:
Sir John Herschel
Date:
[16 June 1856]
Source of text:
RS:HS 5.90
Summary:

Sending him a copy of her Familiar Astronomy and inviting his comments on this work. His works are well known in America.

Contributor:
John Herschel Project

Herschel1383

From:
George Gabriel Stokes
To:
Sir John Herschel
Date:
[27 June 1856]
Source of text:
RS:HS 17.31
Summary:

Writes to clarify his understanding of the word 'fluorescence.' Asks JH to review a paper on color-blindness.

Contributor:
John Herschel Project

Herschel5867

From:
Joseph Bullar
To:
Sir John Herschel
Date:
[3 July 1856]
Source of text:
RS:HS 4.336
Summary:

Death of his sister a blow to John Bullar [father of writer].

Contributor:
John Herschel Project

Herschel6180

From:
Joseph Baxendell
To:
Sir John Herschel
Date:
[4 July 1856]
Source of text:
RS:HS 3.305
Summary:

Recent observations of specified stars and their variations.

Contributor:
John Herschel Project

Herschel1385

From:
George Gabriel Stokes
To:
Sir John Herschel
Date:
[8 July 1856]
Source of text:
RS:HS 17.33
Summary:

Further thoughts [see GS's 1856-6-27] on the nature of fluorescence, including that it is a transient phosphorescence.

Contributor:
John Herschel Project

Herschel1386

From:
George Gabriel Stokes
To:
Sir John Herschel
Date:
[9 July 1856]
Source of text:
RS:HS 17.34
Summary:

Continues comments on fluorescence from letter of 1856-7-8; then shows mathematically that JH's solution for the problem of Mahomet's coffin [see GS's 1856-7-1] will not work.

Contributor:
John Herschel Project

Herschel1388

From:
George Gabriel Stokes
To:
Sir John Herschel
Date:
[15 July 1856]
Source of text:
RS:HS 17.36
Summary:

Comments on one of the magnetism experiments JH described in his letter of 1856-7-14.

Contributor:
John Herschel Project

Herschel7936

From:
John Welsh
To:
Sir John Herschel
Date:
[15 July 1856]
Source of text:
RS:HS 18.139
Summary:

Describes R.S.L.'s compound magnet. Recommends cleaning and remagnetizing. Awaits JH's instructions.

Contributor:
John Herschel Project

Herschel5868

From:
Joseph Bullar
To:
Sir John Herschel
Date:
[15 July 1856]
Source of text:
RS:HS 4.337
Summary:

Their whole family is grateful for JH's letter of sympathy to JB's father.

Contributor:
John Herschel Project

Herschel11642

From:
John McClelland
To:
Sir John Herschel
Date:
[18 July 1856]
Source of text:
RS:HS 12.7
Summary:

Will give him great pleasure to call at Collingwood in the near future. Grieved to hear of JH's illness. Begs acceptance of a set of papers of Dr. William Griffith.

Contributor:
John Herschel Project

Herschel7049

From:
Augustus De Morgan
To:
Sir John Herschel
Date:
[19 July 1856]
Source of text:
RS:HS 6.285
Summary:

Sending a pamphlet, which may give JH some amusement.

Contributor:
John Herschel Project
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