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Herschel6531

From:
Sir John Herschel
To:
Edward Joshua Cooper
Date:
[18 July 1843]
Source of text:
RS:HS 22.162
Summary:

Comments on calculation of orbit of Gamma Virginis; requests any observations EC has of that star.

Contributor:
John Herschel Project

Herschel407

From:
Sir John Herschel
To:
George Biddell Airy
Date:
[18 July 1843]
Source of text:
RGO 6.193.203
Summary:

Finds GA's measurements of Gamma Virginis far away from JH's own, and instructs GA in the best way to measure double star positions.

Contributor:
John Herschel Project

Herschel4246

From:
Sir John Herschel
To:
William Henry Smyth
Date:
[18 July 1843]
Source of text:
RS:HS 22.163
Summary:

Devises and suggests mode of micrometric measurement of angles.

Contributor:
John Herschel Project

Herschel1949

From:
Sir John Herschel
To:
Unidentified
Date:
[18 July 1843]
Source of text:
DMC 695A.885.28
Summary:

Refers to a variety of salts and their reaction to light in the production of photographs. JH hopes that [?] still intends to publish his work in this area.

Contributor:
John Herschel Project
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