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1870-1879 in date 
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From:
Sir John Herschel
To:
Edward Sabine
Date:
[3 October 1870]
Source of text:
RS MM.10.86A (C: RS MM.10.86B)
Summary:

Discusses significance of Col. Napier's pendulum observations to research on earth's constitution and gravitation.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Otto Wilhelm Struve
Date:
[10 July 1870]
Source of text:
RS:HS 24.321
Summary:

Thanks for many works, especially double star catalogs, about which JH requests further information, and which will help JH's attempt to compile digest of all measures of all known double stars.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[20 September 1870]
Source of text:
RS Sa.679
Summary:

Thanks for telegram and has dispatched papers about absorption power of actinometer liquid. Hopes letter written in Lady Sabine's handwriting does not indicate serious illness of ES.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[2 August 1870]
Source of text:
RGO 6.197.291
Summary:

Is preparing a catalogue of all double star observations, and is having much difficulty with the observations of J. H. Mädler.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[22 December 1870]
Source of text:
RS:HS 1.326 (C: RS:HS 24.342 & draft: RGO 6.132.110)
Summary:

Thanking him for copies of books. People at Collingwood are gazing at the eclipse. Concerning the astatic needle.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Andrews
Date:
[24 January 1871]
Source of text:
RS:HS 1.345 & 24.344
Summary:

Thanking him for his paper on heat developed in combination of acids and bases. Commenting on the various makes of calorimeters.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Andrews
Date:
[5 February 1871]
Source of text:
RS:HS 1.347 & 24.345
Summary:

Regarding patents, and quoting the results of experiments by foreigners without acknowledging the sources.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Andrews
Date:
[22 February 1871]
Source of text:
RS:HS 24.346
Summary:

Thanks TA for information on ice calorimetric work.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Andrews
Date:
[13 April 1871]
Source of text:
RS:HS 24.347
Summary:

Thanks TA for further information [see JH's 1871-2-22] on TA's work on ice calorimeter.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
W[illiam] Ackland
Date:
[13 April 1871]
Source of text:
RS:HS 1.381 & 24.362
Summary:

Is distressed to hear that [W. L.] Newman's tables cannot be found at the R.A.S. Please make a further search. Does the R.A.S. have C. J. G. [=J. W.] Pastorff's volume of drawings of sunspots?

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William H. Attree
Date:
[3 November 1870]
Source of text:
RS:HS 24.337
Summary:

Relationship of electricity to magnetism, and relevance to 'auroral streamers'.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Alfred Brothers
Date:
[20 February 1871]
Source of text:
RS:HS 24.357
Summary:

Thanks for, and comments on, some photographs of the solar corona.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Thomas Brassey
Date:
[14 April 1870]
Source of text:
RS:HS 5.96
Summary:

Thanks for his pamphlet on 'Trade Unions and the Cost of Labour.' Comments on this.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
F. Charsley
Date:
[1870-2-8 or later]
Source of text:
RS:HS 5.250verso
Summary:

Reply to FC's 1870-2-8.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Henry H. H. Cameron
Date:
[16 February 1870]
Source of text:
RS:HS 5.317 & 24.298
Summary:

Advice and guidance on the path he is to pursue when he goes to university.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[31 July 1870]
Source of text:
RS:HS 24.324
Summary:

Of talking fishes, a great meteor falling in Tripoli, and the 'madness of man' in the wake of the Franco-Prussian War.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[18 August 1870]
Source of text:
RS:HS 24.325
Summary:

Comments about some pieces of German poetry.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[19 October 1870]
Source of text:
RS:HS 24.335
Summary:

Recounts various reports of phenomena in the sky related to the 'great Moscow phenomenon' of 'mock Suns and inverted Arches.'

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[4 November 1870]
Source of text:
RS:HS 24.338
Summary:

Thanks for the clippings about an aurora; thoughts on the relationship of poetry to music.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Elizabeth Colling
Date:
[13 January 1870]
Source of text:
RS:HS 24.297
Summary:

Thanks for the volume of EC's verse; comments on various aspects of poetry.

Contributor:
John Herschel Project