Search: Herschel, John in correspondent 
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John Herschel Project in contributor 
1840-1849::1842::08 in date 
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Herschel3847

From:
Caroline Lucretia Herschel
To:
Sir John Herschel
Date:
[4 August 1842]
Source of text:
unknown
Summary:

Promises in her next letter to comment about JH's 'chrysotype' photographic process.

Contributor:
John Herschel Project

Herschel9025

From:
Sir John Herschel
To:
J. Coates
Date:
[8 August 1842]
Source of text:
Univ.Coll.London SDUK Papers
Summary:

[To JC as Secretary, Society for the Diffusion of Useful Knowledge:] Thanks for offer to send a copy of Augustus De Morgan's Differential and Integral Calculus.

Contributor:
John Herschel Project

Herschel3995

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[9 August 1842]
Source of text:
TxU:H/L-0587.12.b; Reel 1058
Summary:

Describes the total solar eclipse seen by Francis Baily at Pavia and George Airy at Turin. They were thrilled to witness three purple flames from the blocked sun emerge around the edge of the moon. Thirty more Cape Town sweeps remain to be reduced.

Contributor:
John Herschel Project

Herschel8881

From:
Sir John Herschel
To:
the Athenaeum
Date:
[10 August 1842]
Source of text:
Athenaeum, #773 (Aug. 20, 1842), 748
Summary:

Seeks to clear up confusions about various photographic processes, e.g., the Chrysotype process, developed by JH, about which confusions arose from earlier reports on them in the Athenaeum.

Contributor:
John Herschel Project

Herschel9245

From:
F. M. Eardley-Wilmot
To:
Sir John Herschel
Date:
[12 August 1842]
Source of text:
RS:HS 7.2
Summary:

Has been unable to make many readings with the actinometer. Is expecting some irregular readings with the magnetometers. Survey of South Africa appears very distant. Relates recent events in Natal and with the Boers.

Contributor:
John Herschel Project

Herschel4434

From:
Benjamin Peirce
To:
Sir John Herschel
Date:
[15 August 1842]
Source of text:
RS:HS 14.151
Summary:

Sends Joseph Cranch to consult with JH over an equatorial telescope for Harvard College Observatory.

Contributor:
John Herschel Project

Herschel2452

From:
Edward Sabine
To:
Sir John Herschel
Date:
17 August [1842]
Source of text:
RS:HS 15.306
Summary:

Magnetic survey of Austrian dominions to be undertaken. Sending portable apparatus for survey in Mediterranean along with instructions from [Charles] Riddell. Completed sea observations for R.S.L.

Contributor:
John Herschel Project

Herschel10555

From:
Henry Holland
To:
Sir John Herschel
Date:
17 August [1842]
Source of text:
RS:HS 9.432
Summary:

Compliments JH's translation (1842) of J. C. F. Schiller's 'The Walk.' Is going to Scotland, then Switzerland. Has seen enough of America.

Contributor:
John Herschel Project

Herschel8543

From:
Sir John Herschel
To:
Mr. Collen
Date:
[17 August 1842]
Source of text:
BostonPubLib Ch.J.6.21
Summary:

Would be pleased to be visited by C to discuss the application regarding glass [lenses] of various algebraic formulae devised by JH. Will also show C some of JH's recent work in photography.

Contributor:
John Herschel Project

Herschel10709

From:
Alexander von Humboldt
To:
Sir John Herschel
Date:
[19 August 1842]
Source of text:
RS:HS 10.66
Summary:

Recounts details of his recent visit to England. Recent astronomical observations. Has JH heard from C. K. J. Bunsen about his award?

Contributor:
John Herschel Project

Herschel175

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[19 August 1842]
Source of text:
RGO 6.693.108
Summary:

Asks GA's opinion as to whether Ordinance observatories should make their magnetic observations on a 3-minute or 5-minute system.

Contributor:
John Herschel Project

Herschel11373

From:
Humphrey Lloyd
To:
Sir John Herschel
Date:
[22 August 1842]
Source of text:
RS:HS 11.281
Summary:

Thinks it necessary to revise the instructions for the magnetic observations. Makes some suggestions for the Report of the Committee.

Contributor:
John Herschel Project

Herschel4717

From:
George Biddell Airy
To:
Sir John Herschel
Date:
[24 August 1842]
Source of text:
RS:HS 1.106 (C: RGO 6.368.655)
Summary:

Returning packet of papers on magnetism. Encloses copy of a letter he has sent to Edward Sabine. Has seen the recent eclipse of the sun.

Contributor:
John Herschel Project

Herschel1157

From:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[1842-8-24 or later]
Source of text:
RS:HS 25.14.14
Summary:

Writes to send thanks by way of AH to the King of Prussia for the award of the Order of Merit. JH also comments on some astronomical matters.

Contributor:
John Herschel Project

Herschel11374

From:
Sir John Herschel
To:
Humphrey Lloyd
Date:
[24 August 1842]
Source of text:
RS:HS 11.282 (C: RS:HS 22.137)
Summary:

Regarding the revision of the instructions for the magnetic observatories.

Contributor:
John Herschel Project

Herschel107

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[25 August 1842]
Source of text:
RGO 6.675.329
Summary:

A note to accompany some letters being returned to GA.

Contributor:
John Herschel Project

Herschel176

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[25 August 1842]
Source of text:
RGO 6.693.110 (C: RGO 6.675.327; draft not in JH's hand RS:HS 1.107 & 22.132)
Summary:

Is organizing a committee to revise the instructions for observers at magnetic observatories; GA is on it.

Contributor:
John Herschel Project

Herschel6099

From:
Francis Baily
To:
Sir John Herschel
Date:
[26 August 1842]
Source of text:
RS:HS 3.226
Summary:

Further remarks concerning the recent eclipse and his own and G. B. Airy's papers on the subject.

Contributor:
John Herschel Project

Herschel6100

From:
Sir John Herschel
To:
Francis Baily
Date:
[27 August 1842]
Source of text:
RS:HS 3.227 (C: RS:HS 25.6.10 & 25.8.46)
Summary:

Thanks for the information on the eclipse. Comments on this. Events at the B.A.A.S. meeting. News of Wilhelm Struve's activities.

Contributor:
John Herschel Project

Herschel6101

From:
Francis Baily
To:
Sir John Herschel
Date:
[29 August 1842]
Source of text:
RS:HS 3.228
Summary:

Has read G. B. Airy's paper on the eclipse. Would JH send on FB's remarks on the eclipse to Airy. Comments on the phenomenon of the eclipse.

Contributor:
John Herschel Project
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