From:
Ebenezer Henderson
To:
Sir John Herschel
Date:
[20 May 1850]
Source of text:
Harvard: Houghton AAH 67m-67 (51)
Summary:
Requests JH's opinion on his calculation on 'solar and sidereal ratios.'
Contributor:
John Herschel Project
Requests JH's opinion on his calculation on 'solar and sidereal ratios.'