Search: Talbot, William Henry Fox in correspondent 
Herschel, John in addressee 
letter in document-type 
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1830-1839 in date 
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From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[4 March 1833]
Source of text:
RS:HS 17.268
Summary:

Asks about rumor regarding JH going to Cape. Describes some electrical experiments WT saw at Royal Institution and refers to some WT carried out years earlier.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[9 March 1833]
Source of text:
RS:HS 17.269
Summary:

Asks for seeds and roots of native plants of the Cape. Refers to JH's writings on beating of the heart and comments on some optical experiments of Charles Wheatstone and David Brewster.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[27 March 1833]
Source of text:
RS:HS 17.270
Summary:

Comments on JH's paper on potash in Annales de chimie. Has observed reaction products in microscope. Concerned over delay in publication by David Brewster of his experimental results in optics and light, especially as WT not convinced of legitimacy of rumored results.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[28 May 1833]
Source of text:
RS:HS 17.271
Summary:

Has performed some Newton's rings interference experiments. Asks whether such experiments have already been communicated to the R.S.L.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[31 May 1833]
Source of text:
RS:HS 17.272
Summary:

Trying to understand David Brewster's results on absorption of light in gaseous state, and the dark lines in solar spectrum, the cause of which he misunderstands.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[27 August 1837]
Source of text:
RS:HS 17.273
Summary:

About plant seeds sent by JH from the Cape, WT having sent him some Mexican seeds in return. Halley's Comet only clearly seen on two nights.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[23 May 1838]
Source of text:
RS:HS 17.274
Summary:

Writing to welcome JH home from the Cape.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[11 June 1838]
Source of text:
RS:HS 17.275
Summary:

About Cape bulbs and seeds, the new travel by railway from Slough to London, and concern about interest in animal magnetism.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[8 July 1838]
Source of text:
RS:HS 17.276
Summary:

Thanks for more Cape bulbs.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[25 January 1839]
Source of text:
RS:HS 17.277
Summary:

Will give a paper on fixing the image formed by the camera obscura to R.S.L. and wants to review it with JH first.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[28 January 1839]
Source of text:
RS:HS 17.278
Summary:

JH is indisposed, so WT will come to Slough to review paper [see WT's 1839-1-25]. Asks JH about appropriate curve on lenses for camera obscura for 2-foot focus.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[29 January 1839]
Source of text:
RS:HS 17.279a
Summary:

Has received urgent request from Athenaeum to allow them to publish paper on 'Photogenic Drawing' before it is read to R.S.L. in light of announcement of the 'Parisian invention.'

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[2 February 1839]
Source of text:
RS:HS 17.280
Summary:

More about paper being published in both the R.S.P.T. and Athenaeum.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[8 February 1839]
Source of text:
RS:HS 17.281a
Summary:

Questions JH's intent to display 'photogenic drawings' to R.S.L.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[11 February 1839]
Source of text:
RS:HS 17.282
Summary:

Wants to withhold description of 'developing' process until it is perfected to obviate others using it. Also refers to second process to make 'positive' and 'negative.'

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[14 February 1839]
Source of text:
RS:HS 17.283
Summary:

Some comments on JH's light and photography experiments, especially effects of different kinds of glass and fixing with ferrocyanate.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[19 February 1839]
Source of text:
RS:HS 17.284
Summary:

Describes mediocre results obtained using ferrocyanate of potash for fixing image. Mentions some other methods, including his favorite, common salt. Asks JH to keep these secret.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[20 February 1839]
Source of text:
RS:HS 17.285
Summary:

Finally had success washing with ferrocyanate. Wants to present note of 'his' processes to R.S.L. and so to the world.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[27 February 1839]
Source of text:
RS:HS 17.286
Summary:

Wishes to communicate to J. B. Biot, and so to Academie des sciences, JH's two 'beautiful' fixing methods, by hyposulfite and ferrocyanate.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[1 March 1839]
Source of text:
RS:HS 17.287
Summary:

Enlarges upon his method of using salt as photographic fixer; then asks JH to explain the chemistry thereof. Has tried Louis Daguerre's fixing process without success.

Contributor:
John Herschel Project