Search: Herschel, John in author 
1840-1849::1842 in date 
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RS-MM-000655

From:
John Frederick William Herschel
To:
Humphrey Lloyd
Date:
11 January 1842
Source of text:
MM/11/162, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

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

RS-MM-000657

From:
John Frederick William Herschel
To:
Edward Sabine
Date:
27 January 1842
Source of text:
MM/11/164, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000658

From:
John Frederick William Herschel
To:
Humphrey Lloyd
Date:
27 January 1842
Source of text:
MM/11/165, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000659

From:
John Frederick William Herschel
To:
unknown
Date:
28 January 1842
Source of text:
MM/11/166, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000660

From:
John Frederick William Herschel
To:
Edward Sabine
Date:
28 January 1842
Source of text:
MM/11/167, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000663

From:
John Frederick William Herschel
To:
Humphrey Lloyd
Date:
8 February 1842
Source of text:
MM/11/170, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000664

From:
John Frederick William Herschel
To:
Physical Committee
Date:
9 February 1842
Source of text:
MM/11/171, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000666

From:
John Frederick William Herschel
To:
unknown
Date:
17 February 1842
Source of text:
MM/11/173, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000682

From:
John Frederick William Herschel
To:
Edward Sabine
Date:
c.1842
Source of text:
MM/11/192, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-001112

From:
John Frederick William Herschel
To:
Peter Mark Roget
Date:
3 June 1842
Source of text:
MM/16/151, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

Herschel10417

From:
Sir John Herschel
To:
Thomas Henderson
Date:
[4 February 1842]
Source of text:
RS:HS 9.298 & 22.112
Summary:

Congratulates him on his discovery of the parallax of Alpha Centauri. Comments on this and makes suggestions for further examination.

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

Herschel1071

From:
Sir John Herschel
To:
[George Biddell Airy?]
Date:
[6 September 1842]
Source of text:
RS:HS 25.6.13
Summary:

Remarks on the significant increase in brightness of the star Eta Cygni, and comments on several other variable stars.

Contributor:
John Herschel Project

Herschel1072

From:
Sir John Herschel
To:
Mrs. Grover
Date:
[28 October 1842]
Source of text:
RS:HS 25.6.14
Summary:

Mother and baby [Margaret and Julia] are doing well; JH asks questions relating to the Grovers giving up the lease on JH's property at Slough.

Contributor:
John Herschel Project

Herschel10722

From:
Sir John Herschel
To:
Alexander von Humboldt
Date:
[1842?]
Source of text:
RS:HS 10.75
Summary:

Convey his thanks to the King for the Order of Merit. Regrets he did not see the King or AH when they visited London recently. Gives astronomical information.

Contributor:
John Herschel Project

Herschel1073

From:
Sir John Herschel
To:
John William Draper
Date:
[5 December 1842]
Source of text:
RS:HS 25.6.16
Summary:

Comments on JD's work in photography; JH goes on to talk about JH's ideas of 'chemical' rays of light.

Contributor:
John Herschel Project

Herschel1122

From:
Sir John Herschel
To:
Charles Wheatstone
Date:
[4 December 1842]
Source of text:
RS:HS 25.11.4
Summary:

Sends CW a specimen of JH's 'mercurial photographic process.' JH is pleased that W. H. Fox Talbot received the Rumford medal.

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

Herschel1146

From:
Sir John Herschel
To:
[Francis Baily?]
Date:
[1842?]
Source of text:
RS:HS 25.14.2
Summary:

A revised set of proposals for Southern constellation reform [see JH's 1840] to be presented to the next B.A.A.S. meeting.

Contributor:
John Herschel Project
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