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Hunt, Robert in correspondent 
John Herschel Project in contributor 
Herschel, John in author 
1840-1849::1840 in date 
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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:
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:
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:
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
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