Search: Herschel, John in correspondent 
Talbot, William Henry Fox in correspondent 
Herschel, John in addressee 
letter in document-type 
1820-1829::1826 in date 
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Showing 18 of 8 items

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
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[4 January 1826]
Source of text:
RS:HS 17.257
Summary:

Asks JH about Dr. Balfour's account in Asiatic Researches about lunar effects on humans in India.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[12 January 1826]
Source of text:
RS:HS 17.258
Summary:

Comments on use of muriate of lime on plants. Also on existence of unexplained bands on film and on presence of red light beyond normal spectrum with light originating from certain sources.

Contributor:
John Herschel Project
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
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[27 February 1826]
Source of text:
RS:HS 17.259
Summary:

Comments on Josef Fraunhofer's work on double stars, on quality and color of light from different sources, refraction of different kinds of light, and solution of a problem in conic sections. Is going to Geneva and Modena soon.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[24 March 1826]
Source of text:
RS:HS 17.260
Summary:

Describes observations made as he travelled and people visited on journey from London to Ancona.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
1826-7
Source of text:
RS:HS 17.261
Summary:

Talks about Josef Fraunhofer's failing health and his making of flint glass.

Contributor:
John Herschel Project
From:
William Henry Fox Talbot
To:
Sir John Herschel
Date:
[24 August 1826]
Source of text:
RS:HS 17.262
Summary:

Is sending on two items directed to JH through WT.

Contributor:
John Herschel Project