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DCP-LETT-4478

From:
William Erasmus Darwin
To:
Charles Robert Darwin
Date:
[30 Apr 1864]
Source of text:
DAR 108: 84
Summary:

[Outline sketches of pollen from long- and short-styled yellow cowslips and from red cowslip, magnified 350x.]

Contributor:
Darwin Correspondence Project

Herschel10640

From:
Sir John Herschel
To:
Frederick Howlett
Date:
[30 April 1864]
Source of text:
RS:HS 24.42
Summary:

More on the construction of a good optical eyepiece for solar observations [see FH's 1864-4-27].

Contributor:
John Herschel Project

Herschel6663

From:
Sir John Herschel
To:
Henry W. Cookson
Date:
[30 April 1864]
Source of text:
RS:HS 5.366 & 24.41
Summary:

Declining the offer of a honorary degree by the University of Cambridge on the grounds of ill health.

Contributor:
John Herschel Project
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