Search: Herschel, John in correspondent 
Talbot, William Henry Fox in correspondent 
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Herschel, John in addressee 
letter in document-type 
1830-1839 in date 
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From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[15 March 1839]
Source of text:
RS:HS 17.288
Summary:

Further chemicals used for fixing, including bromide potash.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[21 March 1839]
Source of text:
RS:HS 17.289
Summary:

Comments on Louis Daguerre's use of muriatic ether, and encloses a photograph of hand writing.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[28 March 1839]
Source of text:
RS:HS 17.290
Summary:

Comments on a number of chemicals used in photography, as well as referring to JH's process of making 'enlargements.'

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[29 March 1839]
Source of text:
RS:HS 17.291
Summary:

Consists mostly of a transcription of two short notes from J. B. Biot to JH by way of WT.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[10 April 1839]
Source of text:
RS:HS 17.292
Summary:

Sends a sample picture fixed by use of iodine [potash].

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[27 April 1839]
Source of text:
RS:HS 17.293
Summary:

More photography comments. Problems with use of hyposulfite fixer. Superiority of English over Daguerreotype in being able to make copies.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[2 July 1839]
Source of text:
RS:HS 17.294
Summary:

Sends JH a positive copy and a transparency. Remarks on JH's use of muriate of lead and asks JH to explain chemistry of it.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[19 July 1839]
Source of text:
RS:HS 17.295
Summary:

Confused by an 'unfixed' photo from JH in which the image shows different effects from different colors of the spectrum. Also other comments on photography.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[8 September 1839]
Source of text:
RS:HS 17.296
Summary:

Sends some samples of photography made with a solar microscope, and comments briefly on the Daguerreotype.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[12 September 1839]
Source of text:
RS:HS 17.297
Summary:

Advises JH not to publish any new processes in photography as there are patent problems. Comments on the Daguerreotype, and on the difficulty of preserving images in some circumstances.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[15 November 1839]
Source of text:
RS:HS 17.298
Summary:

Transmits a message from J. B. Biot, comments on the Daguerreotype, although WT has not tried it.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[7 December 1839]
Source of text:
RS:HS 17.299
Summary:

Comments on many different processes in photography. Still has not tried the Daguerreotype, although WT has had the equipment for a considerable time.

Contributor:
John Herschel Project