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Herschel, John in correspondent 
Talbot, William Henry Fox in correspondent 
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Herschel1368

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[16 September 1844]
Source of text:
RS:HS 17.318
Summary:

Comments and questions about a 'cone of the second order' in mathematics.

Contributor:
John Herschel Project

Herschel1369

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[8 September 1844]
Source of text:
RS:HS 17.317
Summary:

Some comments and questions on mathematics.

Contributor:
John Herschel Project

Herschel1370

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[26 October 1847]
Source of text:
RS:HS 17.319
Summary:

Comments on astronomical symbols, and position of camera when photographing buildings.

Contributor:
John Herschel Project

Herschel1371

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[4 February 1848]
Source of text:
RS:HS 17.320
Summary:

Has performed experiments measuring the deviation of spectra through an obliquely placed diffraction grating. Believes they strongly support the wave theory of light.

Contributor:
John Herschel Project

Herschel1372

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
1851-5-6 or earlier
Source of text:
RS:HS 17.321
Summary:

Refers to process which produces pictures that are negative or positive depending upon the light. Hopes to use it to photograph lunar landscape. Wants to call it 'amphitype' if JH agrees.

Contributor:
John Herschel Project

Herschel1373

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[26 August 1851]
Source of text:
RS:HS 17.322
Summary:

Describes observing solar eclipse at Marienburg in eastern Prussia. Gives advice about whom to see for photography training [see 1851-7-27].

Contributor:
John Herschel Project

Herschel1374

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
28 January [1826?]
Source of text:
RS:HS 17.323
Summary:

Questions and comments regarding improvements in microscopy.

Contributor:
John Herschel Project

Herschel1375

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[1826-1]
Source of text:
RS:HS 17.324
Summary:

Comments on several experiments with spectra passing through glass films.

Contributor:
John Herschel Project

Herschel14458

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[27 November 1850]
Source of text:
TxU:H/M-0547; Reel 1093
Summary:

Congratulates JH on appointment to Mastership of Mint. Hopes JH, as member of Cambridge University Commission, will introduce needed reforms.

Contributor:
John Herschel Project

Herschel7549

From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[20 October 1847]
Source of text:
RAS:JH Archive 10/5.66; Reel 9
Summary:

Grateful for receipt of JH's Cape Results. Sending photographs by several artists to show that 'knowledge of the art is spreading.'

Contributor:
John Herschel Project
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