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DCP-LETT-625A

From:
Charles Robert Darwin
To:
Alexander Young Spearman, 1st baronet
Date:
29 Apr 1842
Source of text:
The National Archives (TNA) (T1/4723 paper 15949)
Summary:

The fourth number of part four is now published; the Smith, Elder & Co. account is presented.

Contributor:
Darwin Correspondence Project

RS-MM-000524

From:
Adolph Theodor Kupffer
To:
Edward Sabine
Date:
14/26 April 1842
Source of text:
MM/10/48, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000672

From:
Edward Sabine
To:
George Biddell Airy
Date:
1 April 1842
Source of text:
MM/11/178, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000673

From:
Edward Sabine
To:
Adolph Theodor Kupffer
Date:
14/26 April 1842
Source of text:
MM/11/179, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

RS-MM-000745

From:
W E Shuckard, Royal Society Library
To:
J W Lubbock
Date:
14 April 1842
Source of text:
MM/12/65, Royal Society
Summary:

No summary available.

Contributor:
Royal Society

SOMERVILLE503

From:
Mary Somerville
To:
John Murray III
Date:
3 Apr 1842
Source of text:
89, MS 41131, NLS
Summary:

No summary available.

Contributor:
Brigitte Stenhouse
Text Online

Faraday1389

From:
Benjamin Collins Brodie
To:
Michael Faraday
Date:
6 April 1842
Source of text:
RI MS F1 I008
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

Faraday1390

From:
Christian Friedrich Schoenbein
To:
Michael Faraday
Date:
9 April 1842
Source of text:
UB MS NS 345
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

Faraday1391

From:
Benjamin Bond Cabbell
To:
Michael Faraday
Date:
16 April 1842
Source of text:
RI MS Conybeare Album, f.35
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

Faraday1392

From:
Michael Faraday
To:
John Murray
Date:
21 April 1842
Source of text:
APS MS B P2/2
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

Faraday1393

From:
Michael Faraday
To:
Angela Georgina Burdett Coutts
Date:
29 April 1842
Source of text:
W.A.F. Burdett-Coutts
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

Faraday1394

From:
Alexander Johnston
To:
Michael Faraday
Date:
30 April 1842
Source of text:
RI MS F1 H34
Summary:

No summary available.

Contributor:
Faraday Project
Text Online

HENSLOW-317

From:
Joseph Allen (Bishop of Ely)
To:
J. S. Henslow
Date:
5 April 1842
Source of text:
Cambridge University Library MS Add. 8177: 1
Summary:

No summary available.

Contributor:
Henslow Correspondence Project

Herschel10419

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[4 April 1842]
Source of text:
RS:HS 9.300
Summary:

Gives the parallaxes of a few southern stars obtained from his own mural circle. Has sent his memoir on Alpha Centauri to the R.A.S.

Contributor:
John Herschel Project

Herschel11910

From:
Johann Heinrich Mädler
To:
Sir John Herschel
Date:
[8 April 1842]
Source of text:
RS:HS 12.272
Summary:

Observations on double stars.

Contributor:
John Herschel Project

Herschel11911

From:
Sir John Herschel
To:
Johann Heinrich Mädler
Date:
[1842-4]
Source of text:
RS:HS 12.273 & 22.144
Summary:

Is gratified that JM is taking an interest in double stars. Comments on some of the observations and time of their orbits.

Contributor:
John Herschel Project

Herschel12806

From:
Sir John Herschel
To:
Joseph Henry Kay
Date:
[19 April 1842]
Source of text:
TxU:H/L-0211; Reel 1054
Summary:

Impressed by accuracy of actinometer measurements made by JK, Joseph Dayman, and P. A. Scott from Feb. to Sept. 1841 at JK's observatory at Rossbank [Tasmania]. Suggests methods to improve readings and simplify reductions.

Contributor:
John Herschel Project

Herschel1362

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[18 April 1842]
Source of text:
RS:HS 17.311
Summary:

Sends JH samples of his calotypes. Off to Germany on a photographic expedition.

Contributor:
John Herschel Project

Herschel14360

From:
Edward Sabine
To:
Sir John Herschel
Date:
[1842 to 1843]-4-23
Source of text:
TxU:H/M-0517.4; Reel 1093
Summary:

Urged by G. B. Airy, ES withdraws earlier letter to JH and encloses letter with ES's opinions regarding continuance of [magnetic and meteorological] observations.

Contributor:
John Herschel Project

Herschel1665

From:
Alfred Smee
To:
Sir John Herschel
Date:
[25 April 1842]
Source of text:
RS:HS 16.151
Summary:

Sends several samples of ferrocyanide JH had requested.

Contributor:
John Herschel Project
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