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Herschel8188

From:
Sir John Herschel
To:
David Brewster
Date:
[31 January 1824]
Source of text:
RS:HS 20.175 (C draft: 20.174)
Summary:

JH's theory of colors. Edward Troughton has DB's instrument one-third completed. When will DB want JH's encyclopedia article on 'Variation'?

Contributor:
John Herschel Project

Herschel587

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[31 January 1824]
Source of text:
RGO 6.803.4
Summary:

Sends GA information about indices of refraction in different glasses and in different parts of the spectrum; also recommends the writings of Josef Fraunhofer.

Contributor:
John Herschel Project
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