Search: Herschel, John in correspondent 
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letter in document-type 
Airy, George Biddell in addressee 
1840-1849::1842 in date 
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Herschel584

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[1842]
Source of text:
RGO 6.706.250
Summary:

A letter of introduction, asking GA to show the observatory to a Mr. Knipping from Hanover, a relative of JH's aunt Caroline.

Contributor:
John Herschel Project

Herschel170

From:
Sir John Herschel
To:
George Biddell Airy
Date:
1842-1-5 or later
Source of text:
RGO 6.693.101
Summary:

Has passed on GA's note to Edward Sabine; cannot write more because his hand shakes too much, having just made a snow-man for the children.

Contributor:
John Herschel Project

Herschel171

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[17 January 1842]
Source of text:
RGO 6.693.102
Summary:

Sends a letter from Humphrey Lloyd for GA's comments.

Contributor:
John Herschel Project

RS-MM-000656

From:
John Frederick William Herschel
To:
George Biddell Airy
Date:
18 January 1842
Source of text:
MM/11/163, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

Herschel173

From:
Sir John Herschel
To:
George Biddell Airy
Date:
1842-1-18 or later
Source of text:
RGO 6.693.105
Summary:

Thanks GA for his comments [see GA's 1842-1-18]; hopes that GA would be willing to have such statements, and other similar statements, made public.

Contributor:
John Herschel Project

Herschel4711

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[21 January 1842]
Source of text:
RS:HS 1.100 & 22.110
Summary:

Concerning Airy's papers recently submitted [see GA's 1842-1-5]. Hopes he will continue to send a report of his experiments and observations.

Contributor:
John Herschel Project

Herschel82

From:
Sir John Herschel
To:
George Biddell Airy
Date:
1842-1-22 or later
Source of text:
RGO 6.675.271
Summary:

As many Russian observatories are now involved in magnetic observations, JH thinks the British observations should continue [see GA's 1842-1-22].

Contributor:
John Herschel Project

Herschel468

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[27 February 1842]
Source of text:
RGO 6.427.74
Summary:

Thanks GA for exercising GA's usual discretion in the matter of the funding of Charles Babbage's calculating machine [see GA's 1842-9-26].

Contributor:
John Herschel Project

Herschel65

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[11 March 1842]
Source of text:
RGO 6.368.646
Summary:

Arranging a visit for GA to Collingwood.

Contributor:
John Herschel Project

Herschel66

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[18 March 1842]
Source of text:
RGO 6.368.649
Summary:

Final arrangements for GA's visit to JH [see GA's 1842-3-15].

Contributor:
John Herschel Project

Herschel383

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[10 April 1842]
Source of text:
RGO 6.463.300
Summary:

Sends GA a spectrum photograph, and explains how JH obtained it.

Contributor:
John Herschel Project

Herschel384

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[24 April 1842]
Source of text:
RGO 6.463.303
Summary:

Sends GA two more spectrum photographs [see JH's 1842-4-10], and believes that these may lead the way to color photography.

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

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

Herschel279

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[1 September 1842]
Source of text:
RGO 6.112.75 (ACCS: RS:HS 25.6.11)
Summary:

About eclipse observations of 1842, together with JH's speculations about the existence of an atmosphere around the sun. Enclosed is an eclipse drawing by Francis Baily.

Contributor:
John Herschel Project

Herschel467

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[20 September 1842]
Source of text:
RGO 6.427.69
Summary:

Needs some clarification of GA's letter [see GA's 1842-9-16] before JH is ready to reply about the calculating engine.

Contributor:
John Herschel Project

Herschel4720

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[21 September 1842]
Source of text:
RS:HS 1.110 & 22.135
Summary:

Reply to GA's letter on Charles Babbage's calculating machine.

Contributor:
John Herschel Project

Herschel537

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[23 September 1842]
Source of text:
RGO 6.340.343
Summary:

Gives GA some accounting of standard weights in Britain, and feels that it would be worth acquiring Robinson estate weight [see GA's 1842-9-22].

Contributor:
John Herschel Project

Herschel324

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[7 November 1842]
Source of text:
RGO 6.203.315
Summary:

Unwilling to come to a meeting as JH anticipates the return of some of his children from the continent; seems considerable confusion as to who is to do what about star catalogues [see GA's 1841-7-27].

Contributor:
John Herschel Project
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