Search: Herschel, John in addressee 
Penny, W. G. in author 
Herschel, John in correspondent 
No in transcription-available 
Sorted by:

Showing 11 of 1 item

From:
W. G. Penny
To:
Sir John Herschel
Date:
1857
Source of text:
RS:HS 14.153
Summary:

Sends a copy of his Astronomical Investigations. Claims there is an 'inequality in the motions of Mars and the Earth.'

Contributor:
John Herschel Project
Document type
Transcription available