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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
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
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:
Cleveland Abbe
To:
Sir John Herschel
Date:
[17 October 1870]
Source of text:
RS:HS 1.378
Summary:

Regarding the publication of the Cincinnati catalogue of double stars. Is sending the Annual Report of the Cincinnati Observatory.

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:
Augustus De Morgan
To:
Sir John Herschel
Date:
[29 October 1870]
Source of text:
RS:HS 6.416
Summary:

Thanks for his enquiry, but has no energy for conundrums at the moment. Finds he has a tendency to tumble as his strength returns.

Contributor:
John Herschel Project
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
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
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
From:
Georg Adolph Erman
To:
Sir John Herschel
Date:
[20 October 1870]
Source of text:
RS:HS 7.105
Summary:

Did not receive JH's letters as he was away from the University. Rejoices at his news of the B.A.A.S. grant.

Contributor:
John Herschel Project
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
From:
John P. Gassiot
To:
Sir John Herschel
Date:
[17 October 1870]
Source of text:
RS:HS 8.66
Summary:

Many thanks for his reference. Will check it.

Contributor:
John Herschel Project
From:
Alexander [Hamilton-]Gordon
To:
Margaret Brodie Herschel
Date:
[24 October 1870]
Source of text:
RS:HS 8.156
Summary:

Would like an order from Sir John to allow him to read in the British Museum.

Contributor:
John Herschel Project