Search: Herschel, John in correspondent 
Airy, George Biddell in addressee 
1860-1869 in date 
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Showing 81–96 of 96 items

Herschel275

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[5 May 1867]
Source of text:
RGO 6.122.177
Summary:

Is assisting in communication between G. G. Stokes and GA, about stereoscopic observation of eclipses; JH is not mobile enough to attend the next Board of Visitors meeting.

Contributor:
John Herschel Project

Herschel276

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[7 May 1867]
Source of text:
RGO 6.122.175
Summary:

A note with G. G. Stokes' letter, which JH forgot to enclose [see JH's 1867-5-5].

Contributor:
John Herschel Project

Herschel158

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[12 September 1867]
Source of text:
RGO 6.695.491
Summary:

Comments on GA's theory of the thermo-electric origin of terrestrial magnetism.

Contributor:
John Herschel Project

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

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

Herschel12603

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[29 November 1867]
Source of text:
TxU:H/L-0025; Reel 1054
Summary:

Concerned about 'Commercial weight' of new standard of weights and measures.

Contributor:
John Herschel Project

Herschel579

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[2 December 1867]
Source of text:
RGO 6.359.543 (C: TxU:H/L-0026)
Summary:

Is still trying to bring the various definitions of the pound into agreement [see GA's 1867-11-30]; the question of weighing in air or vacuum remains as a problem.

Contributor:
John Herschel Project

Herschel580

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[3 December 1867]
Source of text:
RGO 6.359.546 (C: TxU:H/L-0027)
Summary:

Having helped to create confusion surrounding the pound weight [see GA's 1867-12-3], JH now understands it simply and clearly; JH wonders if he is 'growing elderly.'

Contributor:
John Herschel Project

Herschel353

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[29 March 1868]
Source of text:
RGO 6.16.5
Summary:

Suggests reducing the number of Greenwich astronomical observations printed, but not reducing the magnetic and meteorological observations.

Contributor:
John Herschel Project

Herschel354

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[23 May 1868]
Source of text:
RGO 6.16.31
Summary:

Not well enough to attend Visitation Day at the Royal Observatory; fears JH will not likely attend any future meetings and should perhaps withdraw from the Board of Visitors.

Contributor:
John Herschel Project

Herschel4924

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[25 June 1868]
Source of text:
RS:HS 24.217
Summary:

Thanks for gift sent to JH's daughter Amelia; comments on William Petrie's number mysticism with the Great Pyramid.

Contributor:
John Herschel Project

Herschel18

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[13 January 1869]
Source of text:
RGO 6.381.451
Summary:

Has received GA's paper on spectral lines and is amazed that it is possible to see a spectrum in the light from faint nebulae.

Contributor:
John Herschel Project

Herschel159

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[8 May 1869]
Source of text:
RGO 6.695.494 (drafts RS:HS 1.314 & 24.256)
Summary:

Has read the syllabus of GA's lectures on magnetism; it reminds JH of his attempt to solve the problem of 'Mahomet's coffin', which JH still believes would work.

Contributor:
John Herschel Project

Herschel166

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[30 May 1869]
Source of text:
RGO 6.257.356
Summary:

Is considering a new edition of Outlines Astr.[?] and wants to provide the latest determinations of the periods of rotation of the planets.

Contributor:
John Herschel Project

Herschel581

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[23 October 1869]
Source of text:
RGO 6.361.631
Summary:

Continues to rail against the imposition of the metric system in India; argues against any change in the British sovereign coin.

Contributor:
John Herschel Project
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