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From:
Charles C. Nelson
To:
Sir John Herschel
Date:
[6 May 1867]
Source of text:
RS:HS 13.90
Summary:

His brother [John H. Nelson] is at Brighton, and may be coming to London soon. Bodily health improves but mental health shows no improvement.

Contributor:
John Herschel Project
From:
George Biddell Airy
To:
Sir John Herschel
Date:
[6 May 1867]
Source of text:
Cambridge University Library 7656/A3339
Summary:

Response to a letter from JH to G. G. Stokes [1867-5-5] seen by GA, on the problem of the effect of the telescope on illumination from a light source, especially related to a solar eclipse.

Contributor:
John Herschel Project
From:
George Biddell Airy
To:
Sir John Herschel
Date:
[6 May 1867]
Source of text:
RGO 6.479.162
Summary:

Comments on the use of different telescopes and their effect on the albedo of the sun, related to solar eclipses [see JH's 1867-5-5].

Contributor:
John Herschel Project