Search: Herschel, John in correspondent 
1840-1849 in date 
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Airy, George Biddell in addressee 
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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

Herschel337

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[9 January 1843]
Source of text:
RGO 6.462.37
Summary:

Needs a good artisan to construct the framework of a solar spectrum photographic apparatus.

Contributor:
John Herschel Project

Herschel67

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[19 January 1843]
Source of text:
RGO 6.368.660
Summary:

Intends to accept offer [see GA's 1843-1-18]; JH questions the correctness of P. S. Laplace's theory of capillary action.

Contributor:
John Herschel Project

Herschel538

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[9 March 1843]
Source of text:
RGO 6.340.348
Summary:

Would be pleased if Francis Baily and W. H. Miller would agree to serve [see GA's 1843-3-9]; believes sufficient remuneration should be provided for these responsibilities, and comments on the desirability of a continuing standards committee.

Contributor:
John Herschel Project

Herschel135

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[18 March 1843]
Source of text:
RGO 6.92.173
Summary:

Tells GA about a new comet becoming visible.

Contributor:
John Herschel Project

Herschel539

From:
Sir John Herschel
To:
George Biddell Airy
Date:
1843-5-10 or earlier
Source of text:
RGO 6.340.351
Summary:

Concerned that the Colonial governors were not provided with copies of the Standards Commission Report; will not be able to get to Switzerland this year.

Contributor:
John Herschel Project

Herschel68

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[5 June 1843]
Source of text:
RGO 6.368.663
Summary:

Asks GA on behalf of F. W. Bessel, for unreduced positions of a star that FB wishes to examine for annual parallax.

Contributor:
John Herschel Project

Herschel69

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[10 June 1843]
Source of text:
RGO 6.368.665
Summary:

Apologizes for confusion about F. W. Bessel's request [see GA's 1843-6-6], but JH had neglected to check date on FB's letter.

Contributor:
John Herschel Project

Herschel540

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[26 June 1843]
Source of text:
RGO 6.340.352
Summary:

Is expecting to be summoned to Slough, about repossessing JH's [and William Herschel's] old premises; this will affect JH's availability for a meeting [see GA's 1843-6-24].

Contributor:
John Herschel Project

Herschel407

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[18 July 1843]
Source of text:
RGO 6.193.203
Summary:

Finds GA's measurements of Gamma Virginis far away from JH's own, and instructs GA in the best way to measure double star positions.

Contributor:
John Herschel Project

Herschel1074

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[16 August 1843]
Source of text:
RS:HS 25.6.17
Summary:

Has received a request from the Admiralty to order a new telescope for the Cape observatory; at the same time, JH has received an unsolicited offer of a lens. JH seeks advice and information from GA.

Contributor:
John Herschel Project

Herschel4944

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[1843-9]
Source of text:
RS:HS 1.333 (C: RS:HS 25.13.12)
Summary:

Regarding custody of the Standards.

Contributor:
John Herschel Project

Herschel541

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[10 September 1843]
Source of text:
RGO 6.340.354
Summary:

Makes some suggestions about possible storage places for the United States' standards [see GA's 1843-9-9].

Contributor:
John Herschel Project

Herschel154

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[25 September 1843]
Source of text:
RGO 6.701.106
Summary:

Gives formula for defining the measure of the scale of an actinometer.

Contributor:
John Herschel Project

Herschel10434

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[1843]-10
Source of text:
TxU:H/L-0013.2; Reel 1054
Summary:

Recommends buying optics for 7.5-inch telescope from Metz and Mahlers in Munich and having those mounted in London.

Contributor:
John Herschel Project

Herschel11633

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[13 October 1843]
Source of text:
TxU:H/L-0013.1; Reel 1054
Summary:

Urges doubling number of lunar observations.

Contributor:
John Herschel Project
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