Search: Herschel, John in correspondent 
Talbot, William Henry Fox in correspondent 
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letter in document-type 
1840-1849::1840 in date 
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From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[26 February 1840]
Source of text:
Science Museum Talbt 1/23
Summary:

Waited until after 14 Feb. to submit JH's paper on photography ['On the Chemical Action of the Rays of the Solar Spectrum...,' R.S.P.T. (1840), 1-59]. Will send WT a copy.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[28 February 1840]
Source of text:
RS:HS 17.300
Summary:

Concerned about the Daguerreotype patent in England, and questions at some length a paper on the origin of freemasonry.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[3 March 1840]
Source of text:
RS:HS 25.6.2
Summary:

Tells WT about JH developing the thermographic paper which is susceptible to 'calorific' and 'chemical' rays of light.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[19 April 1840]
Source of text:
Science Museum Talbt 1/24
Summary:

Sending specimens sent to JH by [Robert] Hunt. Praises Hunt. Has WT received JH's paper ['On the Chemical Action of the Rays of the Solar Spectrum...,' R.S.P.T. (1840), 1-59]? JH moving to Collingwood.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[30 April 1840]
Source of text:
RS:HS 17.301
Summary:

Waxes lyrical about nature, and comments on a new 'positive' paper JH has sent. Refers to JH's move to Hawkhurst.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[3 May 1840]
Source of text:
Science Museum Talbt 1/25
Summary:

Thanks for excellent pictures WT sent. JH wishes JH had time for further experiments, especially on the 'thermic spectrum.' Praises [Robert] Hunt's results. Recommends experiment to WT.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[15 June 1840]
Source of text:
RS:HS 17.302a
Summary:

Sends a few photographs and says he has read JH's recent memoir. Will comment later.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[19 June 1840]
Source of text:
Science Museum Talbt 1/26
Summary:

Praises various photographs by WT and notes changes in some. Recounts optical experiments, recent and planned, by JH on rock-salt.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
William Henry Fox Talbot
Date:
[30 August 1840]
Source of text:
Science Museum Talbt 1/27 (draft 2pp RS:HS 17.302b & C: RS:HS 22.67)
Summary:

Sends WT a copy of the solar spectrum in which each color is represented clearly in a 'positive' picture. JH sees this as giving hope for color photography.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[1 September 1840]
Source of text:
RS:HS 17.303
Summary:

Concerned with developing photography for tourist use. Doubts that colors of the spectrum can be readily displayed on photographic paper. The'chemistry' of photography is not understood.

Contributor:
John Herschel Project