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Hunt, Robert in author 
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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:
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:
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:
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:
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:
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:
Robert Hunt
To:
Sir John Herschel
Date:
[5 June 1841]
Source of text:
RS:HS 10.90
Summary:

Returns with grateful thanks the example of photographs recently sent him. They open up a new field of curious processes. Will not have much time this summer for photographic experiments as he is carrying out a series of investigations into the air of mines. Has been experimenting with the cyanurets.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[28 May 1842]
Source of text:
RS:HS 10.91
Summary:

Was hoping to send him some positive paper, but has been unable to prepare this due to a medical problem. Did make a sheet or two today. Returns some of the specimens JH sent him but would like to keep those made by JH himself.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[12 October 1842]
Source of text:
RS:HS 10.92
Summary:

Is grateful for the specimens sent him. Has been carrying out a series of experiments on the Calotype process with extraordinary results, especially the crimson skies. What does he think of the idea of publishing a treatise on 'Light' considered as a chemical agent?

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[9 November 1842]
Source of text:
RS:HS 10.93
Summary:

Has been working at [L. F.] Moser's experiments and believes he is wrong in considering latent light as the agent that produces the photographic image. Read a paper last evening on the subject, which will be printed. Has been producing images by the action of heat and electricity and proposes to call this process Thermography.

Contributor:
John Herschel Project
From:
Robert Hunt
To:
Sir John Herschel
Date:
[21 November 1842]
Source of text:
RS:HS 10.94
Summary:

Was pleased to receive JH's letter and to read that he had really proved the existence of [invisible light?]. One of his students has produced images on copper plates by sulfur fumes. Has just seen Macedoine Melloni's memoir, which is now governed by JH's views.

Contributor:
John Herschel Project
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
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
From:
Robert Hunt
To:
Sir John Herschel
Date:
[24 December 1842]
Source of text:
RS:HS 10.97
Summary:

Sends a few samples of plates made by the cyanotype process; they are poor because the sun has not been very strong of late. Comments on this process and wishes JH would make a few experiments with his more perfect apparatus. Inclined to agree with him about the mechanism of the eye.

Contributor:
John Herschel Project