From:
William Selwyn
To:
Sir John Herschel
Date:
[8 October 1862]
Source of text:
RS:HS 15.470
Summary:
Discusses problems with darkness on solar autographs and also the appearance of a white spot or 'ghost.' Cannot explain the 'notch' in the Aug. 4 autographs.
Contributor:
John Herschel Project