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Herschel, John in author 
1860-1869::1867 in date 
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Showing 61–80 of 93 items

Herschel234

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[12 September 1867]
Source of text:
RGO 6.412.244
Summary:

Is very pleased with resolution about the observations of Charles Rümker [see Edward Sabine's 1867-8-30].

Contributor:
John Herschel Project

Herschel575

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[12 September 1867]
Source of text:
RGO 6.359.534
Summary:

It appears that the Indian government has now approved the introduction of the metric system; JH is very upset.

Contributor:
John Herschel Project

Herschel986

From:
Sir John Herschel
To:
John Herschel (son)
Date:
[12 September 1867]
Source of text:
JHS 6.52
Summary:

Has been observing sunspots and talks about sunspot cycles; JH is glad to see that son John has been practicing observing with the spectroscope in preparation for the Indian solar eclipse [see JH's 1867-6-12].

Contributor:
John Herschel Project

Herschel983

From:
Sir John Herschel
To:
John Herschel (son)
Date:
[29 September 1867]
Source of text:
JHS 6.51
Summary:

Provides sources of information about polarization, spectroscopy and solar physics for son John, who is continuing his preparation for observing the solar eclipse [see JH's 1867-9-12].

Contributor:
John Herschel Project

Herschel2039

From:
Sir John Herschel
To:
Eliza Susan Quincy
Date:
[30 September 1867]
Source of text:
RS:HS 14.282 (C: RS:HS 24.206)
Summary:

EQ may forward packages for JH to [John] Stewart in London. Discusses [James] Grahame. Pleased EQ liked his translation of the Iliad.

Contributor:
John Herschel Project

Herschel13055

From:
Sir John Herschel
To:
Richard Strachey
Date:
1867-10
Source of text:
TxU:H/L-0467; Reel 1055
Summary:

Offers advice to president of committee for adoption of uniform system of weights and measures for India.

Contributor:
John Herschel Project

Herschel13056

From:
Sir John Herschel
To:
Richard Strachey
Date:
1867-10
Source of text:
TxU:H/L-0468 (C: 0469 & 0470); Reel 1055
Summary:

Offers advice to president of committee for adoption of uniform system of weights and measures for India.

Contributor:
John Herschel Project

Herschel7210

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[16 October 1867]
Source of text:
RS:HS 24.207
Summary:

Requests AD send JH an astronomical drinking song.

Contributor:
John Herschel Project

Herschel8954

From:
Sir John Herschel
To:
Photographic News
Date:
[27 October 1867]
Source of text:
Photographic News, 11 (Nov. 8, 1867), 541-2
Summary:

Maintains that JH did not invent the thaumsacope [thaumatrope], which some have ascribed to him. JH does note that he proposed moving pictures in an 1860 publication, five years before Alonzo G. Grant sought patent protection for this idea.

Contributor:
John Herschel Project

Herschel1447

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[29 October 1867]
Source of text:
Cambridge University Library 7656/RS617
Summary:

Asks GS to explain to R.S.L. Council why JH's son John cannot appear at a meeting of the Council, as he is due to sail for India.

Contributor:
John Herschel Project

Herschel2979

From:
Sir John Herschel
To:
Adolphe Quetelet
Date:
[30 October 1867]
Source of text:
Académie belgique: #45 (C: #46)
Summary:

Ashamed not to have written sooner. Has received AQ's meteorology of Belgium. Wishes success with his work on social physics. Enjoyed AQ's Histoire des sciences mathématique et physique chez les belges. Disgusted that the French insist Isaac Newton stole his ideas on the system of gravitation from Blaise Pascal. Hopes to send AQ his 'synopsis of all micrometrical measures' made by William Herschel on double stars. Sends Latin version of Friedrich Schiller's 'Spaziergang.'

Contributor:
John Herschel Project

Herschel4017

From:
Sir John Herschel
To:
Robert Hunt
Date:
[30 October 1867]
Source of text:
George Eastman House, 17.17 (C: RS:HS 24.208)
Summary:

In response to RH's 1867-10-28, JH sends a list of his writings on astronomy.

Contributor:
John Herschel Project

Herschel8357

From:
Sir John Herschel
To:
Elizabeth Drummond [Jr.]
Date:
[2 November 1867]
Source of text:
RS:HS 19.159 (C: RS:HS 24.209)
Summary:

JH is 'shaky & feeble.' Pleased with biography of ED's brother Thomas. JH's son John and bride departed today for India. Deaths of JH's contemporaries. Describes Constance Herschel's whooping cough.

Contributor:
John Herschel Project

Herschel577

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[3 November 1867]
Source of text:
RGO 6.359.536
Summary:

Writes to inquire as to the exact definition of the gallon and the pound, and the circumstances under which the appropriate measures would be made.

Contributor:
John Herschel Project

Herschel3412

From:
Sir John Herschel
To:
John Tyndall
Date:
[3 November 1867]
Source of text:
RS:HS 24.210
Summary:

Believes Michael Faraday's boro-silicate of lead has not been used for telescopes, but JH and others have tried using it for other optical purposes. Describes method for producing veinless flint glass.

Contributor:
John Herschel Project

Herschel1475

From:
Sir John Herschel
To:
East India Company
Date:
[5 November 1867]
Source of text:
APS 509.L56.20
Summary:

Feels that he has been quoted out of context, making it appear that JH favors the introduction of the metric system in India. This being not the case, JH then proceeds to show how the British system of measures is related to terrestrial measurements, especially the length of the earth's polar axis. In so doing, JH argues for the greater accuracy in the definition of the British units, as compared to the metric.

Contributor:
John Herschel Project

Herschel13547

From:
Sir John Herschel
To:
J[ohn] H[enry] Whitaker
Date:
5 November [1867]
Source of text:
TxU:H/L-0769.1; Reel 1089
Summary:

Has nothing of Mendelsohn to send to JW. Has R.S.L. letters, but JH does not want to part with them.

Contributor:
John Herschel Project

Herschel13057

From:
Sir John Herschel
To:
Richard Strachey
Date:
[5 November 1867]
Source of text:
TxU:H/L-0469 & 0470; Reel 1055
Summary:

Offers advice to president of committee for adoption of uniform system of weights and measures for India.

Contributor:
John Herschel Project

Herschel1449

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[20 November 1867]
Source of text:
Cambridge University Library 7656/H717
Summary:

Does not know if equipment from R.S.L. reached JH's son John at Southampton [see GS's 1867-11-18].

Contributor:
John Herschel Project

Herschel13535

From:
Sir John Herschel
To:
J. Melvill
Date:
[21 November 1867]
Source of text:
TxU:H/L-0763; Reel 1089
Summary:

Please transmit enclosed recommendations by JH to Richard Strachey or other members of committee to establish uniform system of weights and measures for India.

Contributor:
John Herschel Project
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