From:
Charles Robert Darwin
To:
William Erasmus Darwin
Date:
22 Feb [1863 or later]
Source of text:
DAR 210.6: 131
Summary:
Seeks investment advice.
Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Richard Frean
Date:
22 Feb 1863
Source of text:
DAR 144: 298
Summary:
Glad RF approves of book [Origin].
Impossible in many cases to conjecture how structures acquired.
Comments on degeneration of civilised man.
Contributor:
Darwin Correspondence Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[22 February 1863]
Source of text:
RS:HS 15.269 (C: RS:HS 24.11)
Summary:
Returns [Warren] de La Rue's letter and discusses its contents, especially the making, mounting, and mirror for de La Rue's reflecting telescope.
Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Edward Sabine
Date:
[22 February 1863]
Source of text:
RS:HS 15.270 (C: RS:HS 24.12)
Summary:
Expresses interest in Swedish plan to survey Spitzbergen and to measure meridian of arc. Discusses gravitometer being developed by [Jacques] Babinet.
Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Biddell Airy
Date:
[22 February 1863]
Source of text:
RGO 6.200.82
Summary:
Might have saved JH some work if he had known what G. F. J. A. Auwers was doing [see GA's 1863-2-20]; has found some more errors in nebula calculations.
Contributor:
John Herschel Project