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Herschel, John in correspondent 
Hunt, Robert in correspondent 
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From:
Robert Hunt
To:
Sir John Herschel
Date:
n.d.
Source of text:
RS:HS 10.135
Summary:

Has a work on Elementary Physics almost through the press; it is intended for the young. Hopes to construct an instrument to measure amount of chemical action in the solar rays. Would like JH to speak to a member of the Government about a position RH would like.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[9 December 1839]
Source of text:
RS:HS 10.80
Summary:

Has been experimenting with photographic papers. Outlines some of his experiments. Has prepared some papers for sale.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[14 December 1839]
Source of text:
George Eastman House 1.17 (draft: RS:HS 10.81 & C: 22.32)
Summary:

Intrigued by RH's experiments with photographic papers; will buy six sheets of RH's specimens. Admits having conducted numerous experiments himself and asks to include some of RH's results in a forthcoming paper on the subject.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[18 December 1839]
Source of text:
RS:HS 10.82
Summary:

Is grateful for his letter. Sends some of his photographic sheets. Now uses a different chemical to prepare his papers. Will be pleased to send JH his results and to receive a copy of the memoir in due course.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
5] April [1840
Source of text:
George Eastman House, 2.17
Summary:

Hopes that his paper does not anticipate any of RH's work; will share with the R.S.L. any of RH's results. Laments that he is unable to fix the spectral colors on photographic paper. Asks if RH has studied the bromines.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[15 April 1840]
Source of text:
RS:HS 10.83
Summary:

Would like JH's account of his own method of fixing a photograph as noted in his memoir. Singular phenomenon of the Daguerreotype. Hopes to produce a photographic paper to equal the silver plate before the month has expired. Will let him know when his process is complete.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[19 April 1840]
Source of text:
RS:HS 22.49
Summary:

Exchanging further information on several aspects of the photographic process [see RH's 1840-4-15].

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[23 April 1840]
Source of text:
RS:HS 10.84
Summary:

Is grateful for the handsome manner in which JH has acknowledged RH's work. Would be willing to prepare a memoir for the R.S.L. Does Louis Daguerre's patent affect RH's manufacture of photographic papers? Has not studied the bromnets so far, but has studied the effects of bromine on plates. Comments on his results.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[9 May 1840]
Source of text:
RS:HS 10.85
Summary:

Sends his paper for communication to the R.S.L. Will send some more examples later as his camera has developed a defect.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[12 May 1840]
Source of text:
George Eastman House, 3.17 (C: RS:HS 22.15)
Summary:

Will forward RH's paper to the R.S.L.; intrigued by RH's results using mercury vapor to produce the image on exposed paper.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[16 May 1840]
Source of text:
RS:HS 10.86
Summary:

Returns the photographic drawings of W. H. Fox Talbot with many thanks. Fears for their permanence. Has produced similar pictures himself acting on bromide of silver with hydrocholoric acid. Has had trouble with his periscope lens.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[23 May 1840]
Source of text:
RS:HS 10.87
Summary:

Was gratified to receive his memoir and to find many of his doubts corrected by JH's experiments. Hoped to enclose some sulphuretted papers but the chemicals went astray in the post. Intends to follow JH's example and precipitate a glass.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[8 August 1840]
Source of text:
RS:HS 10.88
Summary:

Is grateful for the suggested emendations to his paper. Comments on the action of iodine on silver and its oxide. When can he expect publication of his paper? Has noted a peculiar property in the calorific rays when copying engravings. Encloses some Daguerreotype papers.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[17 August 1840]
Source of text:
RS:HS B26.68
Summary:

Thanks RH for a sample of Daguerreotype paper. Comments on some aspects of the action of 'thermic' rays and 'chemical' rays in photography.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[10 November 1840]
Source of text:
George Eastman House, 4.17 (C: RS:HS 22.70)
Summary:

Does not know anywhere that such processes as RH uses are used for registry work, although the idea is frequently raised.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[1841 to 1847?]
Source of text:
Harvard: Houghton AAH 67m-67 (63)
Summary:

Wishes to discuss an urgent matter.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[1841 to 1848?]
Source of text:
Harvard: Houghton AAH 67m-67 (107)
Summary:

Asks to borrow a book.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[17 January 1841]
Source of text:
RS:HS 10.89
Summary:

Is grateful for referring him to Capt. Ludlow. Has now moved himself to Falmouth. What does JH think of the chances of success of a popular book on photography? He is contemplating the idea. Hears that J. B. Biot considers the production of colored drawings impossible, but is not convinced himself. Encloses description and drawing of a very clever instrument.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[10 February 1841]
Source of text:
RS:HS 22.79
Summary:

Has not lately done much work in photography, except to work with paper treated with vegetable substances.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Robert Hunt
Date:
[20 February 1841]
Source of text:
George Eastman House, 5.17
Summary:

Unable to give any specifics concerning Louis Jacques Mandé Daguerre's new photographic process. Discovered that old paper specimens produced a much better representation of the spectrum in its natural colors than those obtained at the date of JH's paper; these results are 'light on a dark ground,' which makes JH more hopeful that colored photography will someday be perfected. Has experimented with vegetable substances.

Contributor:
John Herschel Project