Search: Herschel, John in correspondent 
Hunt, Robert in correspondent 
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John Herschel Project in contributor 
1840-1849::1842::12 in date 
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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

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

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

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

Herschel10745

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
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