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1840-1849 in date 
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Herschel14181

From:
Sir John Herschel
To:
Unidentified
Date:
[1840 to 1841]
Source of text:
TxU:H/M-0407.2; Reel 1087
Summary:

Note on diurnal changes in [magnetic] variation at St. Helena and on estimated cost (£950) of observatory at St. Helena.

Contributor:
John Herschel Project

Herschel13527

From:
Sir John Herschel
To:
Unidentified
Date:
[1840- 4 or earlier]
Source of text:
TxU:H/L-0758; Reel 1089
Summary:

JH is preparing to leave residence at Slough, and all notes on William Herschel's life are packed away. Refers [?] to published biographies, but adds some corrections to those.

Contributor:
John Herschel Project

DCP-LETT-570F

From:
Charles Robert Darwin
To:
Unidentified
Date:
[2 June? 1840]
Source of text:
The British Library (Charnwood Autographs Vol. IV Add MS 70951: 315)
Summary:

Can give no information on the separation of the sexes in the guanaco.

Contributor:
Darwin Correspondence Project

Herschel8556

From:
Sir John Herschel
To:
Unidentified
Date:
[15 June 1840]
Source of text:
BostonPubLib Ms.Eng. 397
Summary:

Has no objection to the recipient's republication of the 'Examples of the Differ. & Integl Calculus by Mr. Peacock,' to which JH contributed.

Contributor:
John Herschel Project

Herschel13516

From:
Sir John Herschel
To:
Unidentified
Date:
12 November [1840?]
Source of text:
TxU:H/L-0749.5; Reel 1089
Summary:

Thanks for [?]'s note and enclosed sonnet. Sorry that old church was replaced during JH's absence from England.

Contributor:
John Herschel Project

Herschel1907

From:
Sir John Herschel
To:
Unidentified
Date:
[4 May 1841]
Source of text:
WT B.5
Summary:

Suggests a resolution of a small amount of money having to do with the exchange of some chairs; also asks about a dining room table.

Contributor:
John Herschel Project

Herschel14714

From:
Unidentified
To:
Sir John Herschel
Date:
[10 August 1841]
Source of text:
TxU:H/M-0914; Reel 1083
Summary:

Requests JH's opinion on five specific points in 'Report on Standards.'

Contributor:
John Herschel Project

Herschel13410

From:
Sir John Herschel
To:
Unidentified
Date:
[22 August 1841]
Source of text:
TxU:H/L-0643; Reel 1089
Summary:

Replies to [?]'s questions about 'Mr. Bethune's suggestions' concerning terminology to be used for standards of weight and measure. Agrees with G. B. Airy that term 'land' should be used with 'land chain' unit.

Contributor:
John Herschel Project

Herschel1895

From:
Sir John Herschel
To:
Unidentified
Date:
1 [October] 1841
Source of text:
WT 52331
Summary:

Explains the phenomenon known as the 'harvest moon.'

Contributor:
John Herschel Project

DCP-LETT-13867G

From:
Charles Robert Darwin
To:
Unidentified
Date:
[1842–82]
Source of text:
eBay (April 2001)
Summary:

Will be glad to see recipient and Mr Morris at Down the following day.

Contributor:
Darwin Correspondence Project

Herschel12889

From:
Sir John Herschel
To:
Unidentified
Date:
[1842]
Source of text:
TxU:H/L-0301; Reel 1054
Summary:

Submit revisions to instructions for conducting and reporting magnetic and meteorological observations.

Contributor:
John Herschel Project

Herschel8561

From:
Sir John Herschel
To:
Unidentified
Date:
[25 March 1842]
Source of text:
BostonPubLib Ms. Eng. 204
Summary:

Appreciates receiving the curious fossil, even though JH knows little of such matters.

Contributor:
John Herschel Project

Herschel13017

From:
Sir John Herschel
To:
Unidentified
Date:
[9 January 1843]
Source of text:
TxU:H/L-0430; Reel 1055
Summary:

Sorry to have caused trouble. Please send JH's 'description and sketches' to Peter Stewart at 65 Cornhill.

Contributor:
John Herschel Project

DCP-LETT-13873

From:
Charles Robert Darwin
To:
Unidentified
Date:
23 Jan [1843-6 or 1856-69]
Source of text:
Edward Ford (private collection)
Summary:

Obliged for memoir with illustrations on most interesting point [unspecified] to occur in many years.

Contributor:
Darwin Correspondence Project

DCP-LETT-13865

From:
Charles Robert Darwin
To:
Unidentified
Date:
1 Mar [1843-82]
Source of text:
Sotheby’s (dealers) (12 November 1963)
Summary:

Regrets not having a duplicate of one of his books to give away. "You will before long no doubt be able to borrow a copy."

Contributor:
Darwin Correspondence Project

Herschel1949

From:
Sir John Herschel
To:
Unidentified
Date:
[18 July 1843]
Source of text:
DMC 695A.885.28
Summary:

Refers to a variety of salts and their reaction to light in the production of photographs. JH hopes that [?] still intends to publish his work in this area.

Contributor:
John Herschel Project

DCP-LETT-13867

From:
Charles Robert Darwin
To:
Unidentified
Date:
7 Aug [1843-68]
Source of text:
Daniel V. Grossman (private collection)
Summary:

Declines invitation to ride because he is "so very subject to headache".

Contributor:
Darwin Correspondence Project

Herschel7350

From:
Unidentified
To:
Sir John Herschel
Date:
[1844?]
Source of text:
RAS:JH Archive 3/1.1.15; Reel 7
Summary:

Refers to 17 July 1827 communication from W. J. Burchell in Brazil to J. S. Duncan, brother of Phillip Duncan, noting increased brightness of Eta Navis, and that Alpha Centauri and Alpha Crucis are double stars.

Contributor:
John Herschel Project

DCP-LETT-779

From:
Charles Robert Darwin
To:
Unidentified
Date:
1 Oct 1844
Source of text:
V&A / Wedgwood Collection (MS W/M 977)
Summary:

CD and Emma request transfer of some shares to E. A. Darwin.

Contributor:
Darwin Correspondence Project

Herschel13412

From:
Sir John Herschel
To:
Unidentified
Date:
1844-11
Source of text:
TxU:H/L-0645; Reel 1089
Summary:

[Form letter] Asks recipients to consider value of magnetical research supported by British government and submit opinions on whether B.A.A.S. should seek continuation of this support after present agreement with government expires at end of 1845.

Contributor:
John Herschel Project
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