From:
Warren de La Rue
To:
Sir John Herschel
Date:
[25 April 1870]
Source of text:
RS:HS 6.170
Summary:
Has written to Kew Observatory to send on the photographs.
Contributor:
John Herschel Project
Showing 1–3 of 3 items
Has written to Kew Observatory to send on the photographs.
Is sending solar autographs. Notes that in groups of spots the larger precede the smaller spots. Can JH form any theories from this?
Detached postscript that discusses the margins of the two photographs, which seem to show that all planets are in the near hemisphere.