From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
[24 Jan 1861]
Source of text:
DAR 210.6: 61
Summary:
Writes of Henrietta’s illness.
Contributor:
Darwin Correspondence Project
From:
Joseph Jopling
To:
Sir John Herschel
Date:
[24 January 1861]
Source of text:
RS:HS 10.425
Summary:
Encloses another design for permanent lines on the faces of a pyramid to observe and record astronomical facts; comments on his methods.
Contributor:
John Herschel Project
From:
George Biddell Airy
To:
Sir John Herschel
Date:
[24 January 1861]
Source of text:
RS:HS 1.249
Summary:
Offering sympathy on the death of JH's daughter [Margaret Louisa].
Contributor:
John Herschel Project