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Herschel1672

From:
Alfred Smee
To:
Sir John Herschel
Date:
[2 December 1842]
Source of text:
RS:HS 16.158
Summary:

About chemical solutions used in photography, and problems produced by impurities in photographic paper.

Contributor:
John Herschel Project

Herschel3948

From:
Sir John Herschel
To:
Robert Hunt
Date:
[2 December 1842]
Source of text:
George Eastman House, 11.17 (C: RS:HS 22.143)
Summary:

Sends RH a packet of photographs with a description of each type.

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

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

JHC323

From:
Sir Joseph Dalton Hooker
To:
Sir William Jackson Hooker
Date:
5 December 1842
Source of text:
JDH/1/2 f.151-154, The Royal Botanic Gardens, Kew
Summary:

No summary available.

Contributor:
Hooker Project

JHC324

From:
Sir Joseph Dalton Hooker
To:
Lady Maria Hooker (nee Turner)
Date:
6 December 1842
Source of text:
JDH/1/2 f.155-161, The Royal Botanic Gardens, Kew
Summary:

No summary available.

Contributor:
Hooker Project

DCP-LETT-11271F

From:
Charles Robert Darwin
To:
William Walmisley Baxter; William Baxter
Date:
8 Dec [1842-81]
Source of text:
University of Otago, Special Collections (MS 49)
Summary:

Orders large pot of spermaceti ointment.

Contributor:
Darwin Correspondence Project

Herschel10743

From:
Robert Hunt
To:
Sir John Herschel
Date:
[8 December 1842]
Source of text:
RS:HS 10.95
Summary:

Was very pleased with the specimen JH sent him; it is still in good condition. Has he read [John William] Draper's paper? Comments on some of the points. Outlines some of his own proposed experiments.

Contributor:
John Herschel Project

Herschel3848

From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[8 December 1842]
Source of text:
unknown
Summary:

Finished the reductions of all of the nebulae and double stars recorded at Cape Town; JH soon hopes to prepare for the publication of his Cape Results.

Contributor:
John Herschel Project

DCP-LETT-654

From:
Charles Robert Darwin
To:
William Darwin Fox
Date:
[9 Dec 1842]
Source of text:
Christ’s College Library, Cambridge (MS 53 Fox 64)
Summary:

CD likes Down House, describes countryside.

Tells of Edward Charlesworth fracas at Geological Society.

Is at work on Volcanic islands.

Contributor:
Darwin Correspondence Project

Herschel1160

From:
Sir John Herschel
To:
Robert Hunt
Date:
[1842-12-9 or later]
Source of text:
RS:HS 25.14.15
Summary:

Is anxious for some means to be developed to get a measurable quantity [preferably by weight] from the action of a beam of light on a surface. JH has been experimenting in photography with 'flouric' compounds.

Contributor:
John Herschel Project

DCP-LETT-13828

From:
Charles Robert Darwin
To:
Charles Edward Mudie; Mary Kingsford Pawling; Mary Kingsford Mudie
Date:
10 Dec [1842-5 or 1855-68]
Source of text:
University of Illinois at Urbana-Champaign, Rare Book and Manuscript Library (Charles E. Mudie Collection, 1816–1897: Correspondence, B29)
Summary:

Declines invitation.

Contributor:
Darwin Correspondence Project

Herschel4339

From:
Richard Taylor
To:
Sir John Herschel
Date:
[10 December 1842]
Source of text:
RS:HS 17.339
Summary:

Asks for advice on a number of scientific papers.

Contributor:
John Herschel Project

Herschel4014

From:
Sir John Herschel
To:
Robert Hunt
Date:
12?] December [1842
Source of text:
George Eastman House, 6.17
Summary:

Read John William Draper's papers; although he believes that Draper's instruments are inconsistent, JH feels that they are still important because they are measurable. Decries [L. F.] Moser's skepticism of photography's value, calling it a 'blindfolding to some of the most interesting physical relations that have ever been discovered.'

Contributor:
John Herschel Project

Herschel10744

From:
Robert Hunt
To:
Sir John Herschel
Date:
[15 December 1842]
Source of text:
RS:HS 10.96
Summary:

Much indebted for his paper on the influence of the solar spectrum on vegetable colors. Has a series of experiments ready that he hopes will resolve some of his own doubts. Does not like the term J. W. Draper uses for the new rays.

Contributor:
John Herschel Project

Herschel12722

From:
Sir John Herschel
To:
George Dollond
Date:
[15 December 1842]
Source of text:
TxU:H/L-0137; Reel 1054
Summary:

Sends description and drawings of JH's actinoscope. Requests estimate for time and expense of constructing it. Questions about clock mechanism and prisms.

Contributor:
John Herschel Project

Herschel13814

From:
George Dollond
To:
Sir John Herschel
Date:
[19 December 1842]
Source of text:
TxU:H/M-0164; Reel 1087
Summary:

Papers arrived safely. Will report GD's opinion on these soon.

Contributor:
John Herschel Project

Herschel1673

From:
Alfred Smee
To:
Sir John Herschel
Date:
[22 December 1842]
Source of text:
RS:HS 16.159
Summary:

Thanks JH for a specimen of 'mercury type,' which AS describes as he examined it under a microscope.

Contributor:
John Herschel Project

Herschel4206

From:
Richard Taylor
To:
Sir John Herschel
Date:
[22 December 1842]
Source of text:
RS:HS 17.340
Summary:

Discusses matter touching P.M. and Scientific Memoirs.

Contributor:
John Herschel Project

Herschel13815

From:
George Dollond
To:
Sir John Herschel
Date:
[23 December 1842]
Source of text:
TxU:H/M-0165; Reel 1087
Summary:

Sees too many difficulties in optics of JH's proposed telescope. Can build mechanical portion, but not by March as JH requires. Cannot give estimate, because design is too novel.

Contributor:
John Herschel Project
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