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1870-1879::1870::10 in date 
Herschel, John in author 
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Herschel3477

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

Herschel1540

From:
Sir John Herschel
To:
Augustus De Morgan
Date:
[6 October 1870]
Source of text:
APS B.H435p.25
Summary:

Asks a whole series of silly riddles, and JH complains of not having heard from AD.

Contributor:
John Herschel Project

Herschel9352

From:
Sir John Herschel
To:
Georg Adolph Erman
Date:
[7 October 1870]
Source of text:
RS:HS 24.332
Summary:

Writes to clarify the actions of the B.A.A.S. [see JH's 1870-5-24].

Contributor:
John Herschel Project

Herschel13054

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[7 October 1870]
Source of text:
TxU:H/L-0466; Reel 1055
Summary:

Corrects date on publication by G. A. Erman.

Contributor:
John Herschel Project

Herschel1469

From:
Sir John Herschel
To:
George Gabriel Stokes
Date:
[7 October 1870]
Source of text:
Cambridge University Library 7656/H730
Summary:

Requests some rewording of B.A.A.S. resolution [see JH's 1870-9-27].

Contributor:
John Herschel Project

Herschel8650

From:
Sir John Herschel
To:
George Griffith
Date:
[7 October 1870]
Source of text:
Manchester Central Library (C: TxU:H/L-0176; Reel 1054)
Summary:

Having been placed jointly in charge with G. A. Erman of a B.A.A.S. grant expenditure to support H. J. R. Petersen's recomputation of Gaussian constant for 1829, JH asks for corrections in the statement of the actions funded.

Contributor:
John Herschel Project

Herschel2987

From:
Sir John Herschel
To:
Adolphe Quetelet
Date:
[9 October 1870]
Source of text:
Académie belgique: #57
Summary:

Apologizes for not writing often. Has been ill. 'Moderate' use of 'Coca de Peru' [cocaine] helps. Is working on a 'General Catalogue of double stars reduced to 1830.0.' Acknowledges works received.

Contributor:
John Herschel Project

Herschel1092

From:
Sir John Herschel
To:
Georg Adolph Erman
Date:
[12 October 1870]
Source of text:
RS:HS 25.7.7
Summary:

Corrects a misunderstanding about the date to which magnetic observations are to be reduced.

Contributor:
John Herschel Project

Herschel9718

From:
Sir John Herschel
To:
John P. Gassiot
Date:
[16 October 1870]
Source of text:
RS:HS 24.334
Summary:

Gives JG a journal reference.

Contributor:
John Herschel Project

Herschel6598

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

Herschel3443

From:
Sir John Herschel
To:
John Tyndall
Date:
[23 October 1870]
Source of text:
RI 459 (draft : RS:HS 17.409a; C: RS:HS 24.336; C: RI 573-4)
Summary:

Thanks for paper on action of rays 'of high refrangibility' on gases and vapors. Attempts to understand reflection of wave motion on particles with diameters 'incomparably smaller' than length of wave.

Contributor:
John Herschel Project

Herschel8593

From:
Sir John Herschel
To:
Julia Margaret Cameron
Date:
[30 October 1870]
Source of text:
Dunedin Public Lib.
Summary:

Sends a copy of JH's version of the German Rhine Song, which JC requested. Comments favorably on French losses in the Franco-Prussian War. Thanks her for visiting.

Contributor:
John Herschel Project
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